McKinney, Texas Weather Conditions

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Current Conditions

  • 50°
  • Overcast
  • Wind: NE 4 mph
  • Humidity: 96%
  • Visibility: 1.0 miles
  • Dew Point: 49°
  • Pressure: 29.88 in. -

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Next 12 Hours

8  pm
11  pm
2  am
5  am
8  am
Fog
Fog
Mostly Cloudy
Mostly Cloudy
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Rain
Rain
43°
47°
46°
46°
47°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Ice Pellets
  • High: 48 °
  • Low: 23 °
  • Ice Pellets
  • Thursday
  • Partly Cloudy
  • High: 40 °
  • Low: 21 °
  • Partly Cloudy
  • Friday
  • Clear
  • High: 46 °
  • Low: 27 °
  • Clear
  • Saturday
  • Clear
  • High: 54 °
  • Low: 36 °
  • Clear
  • Sunday
  • Mostly Cloudy
  • High: 58 °
  • Low: 37 °
  • Mostly Cloudy

Forecast for McKinney, Texas

Updated: 7:15 PM CST on January 03, 2015

Dense fog advisory in effect until 6 am CST Wednesday...
  • Tuesday

    Chance of late night showers. Lows overnight in the low 40s.

  • Tuesday Night

    Cloudy with occasional showers overnight. Areas of dense fog. Low 42F. Winds SSW at 5 to 10 mph. Chance of rain 60%.

  • Wednesday

    Rain. Becoming windy with rain changing to freezing rain late. Some sleet may mix in. High 48F. Winds N at 20 to 30 mph. Chance of precip 100%.

  • Wednesday Night

    Windy with a wintry mix in the evening turning to all snow late. Some icing possible. Low 23F. Winds N at 20 to 30 mph. Chance of precip 100%. Snow and ice accumulations around one inch.

  • Thursday

    Partly cloudy skies. High near 40F. Winds NNE at 10 to 20 mph.

  • Thursday Night

    A mostly clear sky. Low 21F. Winds N at 5 to 10 mph.

  • Friday

    Mainly sunny. High 46F. Winds light and variable.

  • Friday Night

    Clear skies. Low 27F. Winds light and variable.

  • Saturday

    Generally sunny. High 54F. Winds light and variable.

  • Saturday Night

    Partly to mostly cloudy. Low 36F. Winds light and variable.

  • Sunday

    Mostly cloudy skies. High 58F. Winds S at 5 to 10 mph.

  • Sunday Night

    Partly to mostly cloudy. Low 37F. Winds light and variable.

  • Monday

    Mostly cloudy skies early will become partly cloudy later in the day. High around 65F. Winds E at 5 to 10 mph.

  • Monday Night

    Mostly clear skies. Low 41F. Winds light and variable.

  • Tuesday

    Mostly sunny. High 66F. Winds SE at 5 to 10 mph.

  • Tuesday Night

    A mostly clear sky. Low 43F. Winds SE at 5 to 10 mph.

  • Wednesday

    Mostly sunny skies. High 69F. Winds ESE at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy skies. Low around 45F. Winds ESE at 5 to 10 mph.

  • Thursday

    Partly cloudy skies. High near 70F. Winds ESE at 10 to 15 mph.

  • Thursday Night

    Mainly clear skies. Low 46F. Winds E at 5 to 10 mph.

  • Friday

    Showers early then thundershowers developing later in the day. High 68F. Winds E at 10 to 15 mph. Chance of rain 60%.

  • Friday Night

    Thunderstorms during the evening followed by occasional showers overnight. Low 47F. Winds SE at 5 to 10 mph. Chance of rain 80%.

Severe Weather Alert Descriptions

 Winter Weather Advisory  Statement as of 3:08 PM CST on March 3, 2015


... Winter Weather Advisory in effect from 3 PM Wednesday to noon
CST Thursday...

The National Weather Service in Fort Worth has issued a Winter
Weather Advisory which is in effect from 3 PM Wednesday to noon
CST Thursday.

* Timing... from 3 PM Wednesday through noon Thursday.

* Precipitation type... freezing rain... becoming a mix of light
sleet and light snow.

* Accumulation... up to one tenth of an inch of ice... up to one
half inch of sleet and less than one inch of snow.

* Main impact... snow... sleet and ice will create hazardous travel
conditions... especially Wednesday evening through early
Thursday morning.

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of winter
precipitation may cause travel difficulties. Be prepared for
slippery roads and plan on some travel delays.






 Dense Fog Advisory  Statement as of 4:31 PM CST on March 3, 2015


... Dense fog advisory in effect until 6 am CST Wednesday...

The National Weather Service in Fort Worth has issued a dense fog
advisory... which is in effect until 6 am CST Wednesday.

* Visibility... 1/4 mile or less at times.

* Impacts... reduced visibility will make driving hazardous.

Precautionary/preparedness actions...

A dense fog advisory means visibilities will be reduced to less
than one quarter mile. If driving... slow down... use your low-beam
headlights... and leave plenty of distance between you and the
vehicle ahead of you.



92




Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Encore Wire Campus, McKinney, TX

Updated: 8:28 PM CST

Temperature: 49.9 °F Dew Point: 49 °F Humidity: 98% Wind: North at 2.0 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: North Tennessee Street, McKinney, TX

Updated: 8:40 PM CST

Temperature: 50.0 °F Dew Point: 48 °F Humidity: 94% Wind: North at - Pressure: 29.94 in Hourly Precipitation: - Windchill: - Graphs

Location: Eldorado Ridge, McKinney, TX

Updated: 8:43 PM CST

Temperature: 48.7 °F Dew Point: 48 °F Humidity: 99% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Historic District, McKinney, TX

Updated: 8:30 PM CST

Temperature: 49.5 °F Dew Point: 49 °F Humidity: 99% Wind: Calm Pressure: 29.64 in Hourly Precipitation: - Windchill: 50 °F Graphs

Location: Finch Ave, McKinney, TX

Updated: 8:33 PM CST

Temperature: 49.6 °F Dew Point: 49 °F Humidity: 99% Wind: Calm Pressure: 29.93 in Hourly Precipitation: - Windchill: 50 °F Graphs

Location: Quest Addition, McKinney, TX

Updated: 8:40 PM CST

Temperature: 49.7 °F Dew Point: 49 °F Humidity: 97% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Gwendola Drive - Northwood Park, McKinney, TX

Updated: 8:43 PM CST

Temperature: 50.5 °F Dew Point: 50 °F Humidity: 98% Wind: Calm Pressure: 31.06 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Ranger Estates, Fairview, TX

Updated: 8:42 PM CST

Temperature: 50.5 °F Dew Point: 50 °F Humidity: 99% Wind: Calm Pressure: 29.75 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Sandy Glen, McKinney, TX

Updated: 8:33 PM CST

Temperature: 49.6 °F Dew Point: 49 °F Humidity: 99% Wind: Calm Pressure: 29.57 in Hourly Precipitation: - Windchill: 50 °F Graphs

Location: Shady Glen - McKinney, McKinney, TX

Updated: 8:35 PM CST

Temperature: 49.8 °F Dew Point: 49 °F Humidity: 98% Wind: Calm Pressure: 29.76 in Hourly Precipitation: - Windchill: 50 °F Graphs

Location: JLD Weather Center, McKinney, TX

Updated: 8:43 PM CST

Temperature: 50.7 °F Dew Point: 50 °F Humidity: 98% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Vista of Eldorado, McKinney, TX

Updated: 8:43 PM CST

Temperature: 49.8 °F Dew Point: 49 °F Humidity: 98% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Fawn Hollow, McKinney, TX

Updated: 8:43 PM CST

Temperature: 49.8 °F Dew Point: 50 °F Humidity: 99% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Bridlegate, Fairview, TX

Updated: 8:43 PM CST

Temperature: 49.5 °F Dew Point: 49 °F Humidity: 97% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Summer Hill Farms, Fairview, TX

Updated: 8:43 PM CST

Temperature: 49.4 °F Dew Point: - Humidity: 100% Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Stacy Ridge Estates 2, Allen, TX

Updated: 8:40 PM CST

Temperature: 50.2 °F Dew Point: 50 °F Humidity: 98% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Chanceller Creek, McKinney, TX

Updated: 8:43 PM CST

Temperature: 50.2 °F Dew Point: 49 °F Humidity: 94% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Amherst Estates - Lucas, TX, Allen, TX

Updated: 8:42 PM CST

Temperature: 50.0 °F Dew Point: 50 °F Humidity: 99% Wind: Calm Pressure: 29.73 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Thompson Springs, Fairview, TX

Updated: 8:43 PM CST

Temperature: 49.8 °F Dew Point: 49 °F Humidity: 98% Wind: Calm Pressure: 29.71 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Surrey Lane, McKinney, TX

Updated: 8:40 PM CST

Temperature: 48.6 °F Dew Point: 49 °F Humidity: 100% Wind: North at - Pressure: 29.73 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Knightsbridge, McKinney, TX

Updated: 8:43 PM CST

Temperature: 50.2 °F Dew Point: 48 °F Humidity: 91% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: New Hope, McKinney, TX

Updated: 8:42 PM CST

Temperature: 48.9 °F Dew Point: 49 °F Humidity: 99% Wind: ESE at 3.2 mph Pressure: 29.91 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Briar Ridge, McKinney, TX

Updated: 8:30 PM CST

Temperature: 50.3 °F Dew Point: 50 °F Humidity: 99% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Timber Ridge, Mckinney, TX

Updated: 8:43 PM CST

Temperature: 50.2 °F Dew Point: 50 °F Humidity: 99% Wind: Calm Pressure: 30.10 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Lucas Creek, Lucas, TX

Updated: 8:40 PM CST

Temperature: 49.5 °F Dew Point: 49 °F Humidity: 99% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Skywatch McKinney, Mckinney, TX

Updated: 8:43 PM CST

Temperature: 50.3 °F Dew Point: 50 °F Humidity: 99% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Star Creek, Allen, TX

Updated: 8:28 PM CST

Temperature: 50.6 °F Dew Point: 50 °F Humidity: 96% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Biltmoore Court, Allen, TX

Updated: 8:40 PM CST

Temperature: 50.2 °F Dew Point: 49 °F Humidity: 96% Wind: North at - Pressure: 29.73 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Country Meadow, Allen, TX

Updated: 8:43 PM CST

Temperature: 50.4 °F Dew Point: 50 °F Humidity: 99% Wind: ENE at 2.2 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Mckinney, TX

Updated: 8:32 PM CST

Temperature: 50.0 °F Dew Point: 50 °F Humidity: 99% Wind: NE at 1.7 mph Pressure: 29.73 in Hourly Precipitation: - Windchill: - Graphs

Location: Morningside, Allen, TX

Updated: 8:43 PM CST

Temperature: 50.5 °F Dew Point: 50 °F Humidity: 99% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Charles River Court, Allen, TX

Updated: 8:40 PM CST

Temperature: 50.9 °F Dew Point: 51 °F Humidity: 100% Wind: North at - Pressure: 29.96 in Hourly Precipitation: - Windchill: - Graphs

Location: country club/main - ke5fco, Allen, TX

Updated: 8:28 PM CST

Temperature: 49.3 °F Dew Point: 49 °F Humidity: 99% Wind: Calm Pressure: 29.87 in Hourly Precipitation: - Windchill: 49 °F Graphs

Location: Summit View Drive, McKinney, TX

Updated: 8:01 PM CST

Temperature: 49.5 °F Dew Point: 50 °F Humidity: 100% Wind: North at - Pressure: 29.02 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Chandler Estates, Lucas, TX, O2 Ranch, TX

Updated: 8:36 PM CST

Temperature: 49.3 °F Dew Point: 49 °F Humidity: 100% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Angel Parkway, Allen, TX

Updated: 8:29 PM CST

Temperature: 50.0 °F Dew Point: 50 °F Humidity: 99% Wind: Calm Pressure: 29.56 in Hourly Precipitation: - Windchill: - Graphs

Location: Bullingham Lane, Allen, TX

Updated: 8:40 PM CST

Temperature: 52.2 °F Dew Point: 49 °F Humidity: 90% Wind: North at - Pressure: 29.94 in Hourly Precipitation: 0.00 in Windchill: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion...updated 
National Weather Service Fort Worth Texas 
559 PM CST Tuesday Mar 3 2015 


Aviation... 


IFR/LIFR conditions persist across much of North Texas this 
evening and the trend is expected to continue overnight. Visible 
satellite imagery actually shows some breaks in the cloud cover to 
the west but these are not expected to make it to the major 
airports. Stronger isentropic ascent is already overspreading 
North Texas and is expected to increase in strength overnight. 
Areas of fog and drizzle persist under the low clouds. The fog has 
been dense in some areas and this is expected to continue through 
late tonight. Will show IFR conditions through much of the night 
into Wednesday. Latest high resolution guidance has some light 
rain overspreading North Texas after midnight but have pushed back 
the timing of this a little bit closer to morning. The cold front 
is still on track to move through North Texas tomorrow morning 
with gusty north winds and much colder temperatures. Areas of 
light rain are expected to continue with IFR conditions. 


The sub freezing air doesnt look like it will make it into the 
metroplex until middle/late afternoon...so will start the -fzra at 
22z. A transition over to sleet is possible later in the evening. 


Dunn 


&& 


Short term... 


..another bout of winter weather Wednesday afternoon through 
Wednesday night... 


Temperatures today did not warm as much as we thought and the 
dense fog persisted somewhat longer. Still have a few locations 
with visibility below one mile...but weak showers and drizzle 
should help improve them a little before evening. But do not 
expect temperatures to cool much overnight and will keep areas of 
fog most of the night. 


The cold front was just moving into the Texas Panhandle and 
northern Oklahoma at 2 PM. Temperatures were in the teens and 20s 
behind the front over Kansas. We expect the front to cross the 
Red River just after midnight...into the I-20/30 corridor around 
daybreak and through the far southeast counties 4-5 PM. It will 
turn noticeably colder and windy behind the front. May need a Wind 
Advisory for Wednesday night if MOS guidance numbers are right. 
The freezing line will lag many hours behind the front...thus a 
precipitation transitioning to a wintry mix may not take take 
place in the northwest until middle afternoon and across the dfw 
metroplex until 5 PM. Although this is our best guess on the 
transition...an hour or two earlier would result in more serious 
travel impacts for the afternoon commute. We have issued a Winter 
Weather Advisory in three segments. One for the earlier northwest 
timing...one for the central areas including the metroplex to 
cover the late afternoon commuter impact potential and one in the 
southeast where the transition occurs later Wednesday night. 
Currently...we feel sleet amounts up to 1/2 inch and freezing rain 
amounts up to 1/10 inch are the most logical for this event. 


Nearly all of the models have come into better agreement on 
timing...transition and amounts of precipitation. The hi-res 
models are also indicating a potential for convective elements 
moving over the Post-frontal cold air Wednesday evening. Sleet 
showers would result in roads becoming covered in a shorter period 
of time. Other factors aiding this event are: strong frontogenetic 
forcing...significant lift associated with the right-rear entrance 
region of the 250 mb jet aloft and a piece of shortwave energy 
moving over the County Warning Area. 


We will be watching new data as it arrives to re-evaluate the 
potential of this system as a few minor deviations here and there 
could cause significant changes to later forecasts. 


The precipitation will shift to the southeast counties on 
Thursday morning and should end before midday. Wind chills will be 
in the middle teens to lower 20s daybreak Thursday. Highs on 
Thursday will be in the middle to upper 30s with around 40 from 
Cameron to Centerville. Expect sunshine to return to the entire 
County Warning Area by Thursday afternoon! 


&& 


Long term... 
an upper level split-pattern will be developing by late week with 
a short wave trough arriving from the west on Saturday. Temperatures 
will slowly moderate through the period...and there could be some 
light showers over the southeast counties on Saturday. Highs will 
start out in the middle 40s on Friday and warm into the 60s for 
Monday and Tuesday. Lows will be in the 20s on Friday morning...in 
the upper 20s and 30s on Saturday then warming into the 40s by Tuesday 
morning. 75 


&& 


Preliminary point temps/pops... 
Dallas-ft. Worth, Texas 47 47 26 39 24 / 60 90 60 10 5 
Waco, Texas 56 61 30 39 24 / 40 90 70 20 5 
Paris, Texas 49 50 25 39 23 / 90 100 60 10 5 
Denton, Texas 44 44 24 39 23 / 70 90 50 10 5 
McKinney, Texas 45 47 25 39 24 / 70 90 60 10 5 
Dallas, Texas 48 48 26 40 25 / 70 90 60 10 5 
Terrell, Texas 51 52 27 40 23 / 70 90 70 20 5 
Corsicana, Texas 53 60 31 39 25 / 60 90 70 20 5 
Temple, Texas 60 64 30 39 25 / 40 80 70 30 5 
Mineral Wells, Texas 44 46 24 38 22 / 60 80 40 10 5 


&& 


Forward watches/warnings/advisories... 
Winter Weather Advisory from 3 PM Wednesday to noon CST Thursday 
for txz093>095-103>107-116>123-129>134-141>145. 


Dense fog advisory until 6 am CST Wednesday for txz091>095- 
102>107-117>121-131>134-143>146-156>161-174-175. 


Winter Weather Advisory from midnight Wednesday night to noon 
CST Thursday for txz135-146>148-156>162-174-175. 


Winter Weather Advisory from noon Wednesday to noon CST Thursday 
for txz091-092-100>102-115. 


&& 


$$ 






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