Lewisville, Texas Weather Conditions

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Current Conditions

  • 84°
  • Partly Cloudy
  • Wind: ENE 12 mph
  • Humidity: 32%
  • Visibility: 10.0 miles
  • Dew Point: 51°
  • Pressure: 30.16 in. -

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Next 12 Hours

1  pm
4  pm
7  pm
10  pm
1  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
82°
86°
82°
72°
66°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Clear
  • High: 86 °
  • Low: 61 °
  • Clear
  • Tuesday
  • Partly Cloudy
  • High: 84 °
  • Low: 63 °
  • Partly Cloudy
  • Wednesday
  • Clear
  • High: 86 °
  • Low: 63 °
  • Clear
  • Thursday
  • Clear
  • High: 86 °
  • Low: 66 °
  • Clear
  • Friday
  • Partly Cloudy
  • High: 90 °
  • Low: 66 °
  • Partly Cloudy

Forecast for Lewisville, Texas

Updated: 10:00 AM CDT on September 22, 2014

  • Monday

    Partly cloudy with thunderstorms and rain showers in the morning, then clear. High of 86F. Winds from the NE at 10 to 15 mph.

  • Monday Night

    Clear. Low of 61F. Winds from the ENE at 5 to 10 mph shifting to the West after midnight.

  • Tuesday

    Partly cloudy. High of 84F. Winds from the ESE at 5 to 10 mph.

  • Tuesday Night

    Partly cloudy in the evening, then clear. Low of 63F. Winds from the ESE at 5 to 10 mph.

  • Wednesday

    Partly cloudy. High of 86F. Winds from the ESE at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy in the evening, then overcast. Low of 63F. Winds from the ESE at 5 to 10 mph.

  • Thursday

    Clear. High of 86F. Winds less than 5 mph.

  • Thursday Night

    Partly cloudy in the evening, then clear. Low of 66F. Winds from the East at 5 to 10 mph.

  • Friday

    Overcast in the morning, then partly cloudy. High of 90F. Winds from the East at 5 to 10 mph.

  • Friday Night

    Partly cloudy. Low of 66F. Winds from the East at 5 to 10 mph.

  • Saturday

    Partly cloudy. High of 84F. Winds from the East at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Low of 66F. Winds from the East at 5 to 10 mph.

  • Sunday

    Partly cloudy. High of 88F. Winds from the SE at 5 to 10 mph.

  • Sunday Night

    Mostly cloudy. Low of 66F. Winds from the ESE at 5 to 10 mph.

  • Monday

    Partly cloudy. High of 90F. Winds from the SE at 5 to 10 mph.

  • Monday Night

    Partly cloudy. Low of 68F. Winds from the SE at 5 to 10 mph.

  • Tuesday

    Overcast. High of 88F. Winds less than 5 mph.

  • Tuesday Night

    Mostly cloudy. Low of 73F. Winds less than 5 mph.

  • Wednesday

    Partly cloudy with a chance of a thunderstorm. High of 88F. Winds less than 5 mph. Chance of rain 40%.

  • Wednesday Night

    Clear with a chance of a thunderstorm. Low of 73F. Winds less than 5 mph. Chance of rain 40%.

  • Thursday

    Partly cloudy. High of 86F. Winds less than 5 mph.

  • Thursday Night

    Clear. Low of 73F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Peninsula at Twin Coves, Flower Mound, TX

Updated: 1:13 PM CDT

Temperature: 84.4 °F Dew Point: 50 °F Humidity: 31% Wind: ESE at 6.9 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Villages of Northshore, Flower Mound, TX

Updated: 1:11 PM CDT

Temperature: 85.8 °F Dew Point: 56 °F Humidity: 37% Wind: West at 3.7 mph Pressure: 30.13 in Hourly Precipitation: - Heat Index: 85 °F Graphs

Location: Quail Run, Flower Mound, TX

Updated: 1:01 PM CDT

Temperature: 87.1 °F Dew Point: 51 °F Humidity: 29% Wind: NNW at 2.7 mph Pressure: 29.86 in Hourly Precipitation: - Heat Index: 85 °F Graphs

Location: Churchill Crossing, Flower Mound, TX

Updated: 1:14 PM CDT

Temperature: 85.1 °F Dew Point: 59 °F Humidity: 41% Wind: Calm Pressure: 30.15 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Creekwood Estates (Just SE of 2499 & 1171), Flower Mound, TX

Updated: 1:10 PM CDT

Temperature: 82.5 °F Dew Point: 56 °F Humidity: 40% Wind: ENE at 1.0 mph Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Lake Forest, Flower Mound, TX

Updated: 1:11 PM CDT

Temperature: 83.8 °F Dew Point: 55 °F Humidity: 37% Wind: NW at 1.7 mph Pressure: 28.55 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: Westchester, Flower Mound, TX

Updated: 1:14 PM CDT

Temperature: 86.0 °F Dew Point: 57 °F Humidity: 37% Wind: ENE at 5.4 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: 114th RC Aero Squadron, Southlake, TX

Updated: 1:08 PM CDT

Temperature: 82.0 °F Dew Point: 55 °F Humidity: 40% Wind: NE at 13.0 mph Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Stone Creek, Flower Mound, TX

Updated: 1:04 PM CDT

Temperature: 83.8 °F Dew Point: 56 °F Humidity: 39% Wind: NE at 6.7 mph Pressure: 29.98 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: Grapevine Fairway C70, Grapevine, TX

Updated: 12:50 PM CDT

Temperature: 79.7 °F Dew Point: - Humidity: 36% Wind: North at - Pressure: 29.55 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: Wildwood Estates, Flower Mound, TX

Updated: 1:14 PM CDT

Temperature: 83.9 °F Dew Point: 57 °F Humidity: 40% Wind: ENE at 1.0 mph Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Lost Creek Estates, Flower Mound, TX

Updated: 1:14 PM CDT

Temperature: 87.0 °F Dew Point: 50 °F Humidity: 28% Wind: North at 11.5 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Oakwood Estates, Flower Mound, TX

Updated: 1:14 PM CDT

Temperature: 88.2 °F Dew Point: 56 °F Humidity: 34% Wind: NE at 1.1 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: One Place Lane, Flower Mound, TX

Updated: 1:14 PM CDT

Temperature: 90.3 °F Dew Point: 56 °F Humidity: 32% Wind: NE at 2.0 mph Pressure: 30.17 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Timberview Estates West, Flower Mound, TX

Updated: 1:07 PM CDT

Temperature: 83.2 °F Dew Point: 56 °F Humidity: 39% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Woodview at Morriss, Flower Mound, TX

Updated: 1:14 PM CDT

Temperature: 82.9 °F Dew Point: 53 °F Humidity: 36% Wind: NE at 6.0 mph Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Loch Meadow Estates, Southlake, TX

Updated: 1:14 PM CDT

Temperature: 83.5 °F Dew Point: 54 °F Humidity: 36% Wind: SE at 2.9 mph Pressure: 30.17 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: W5CGC / KE7A, Southlake, TX

Updated: 1:12 PM CDT

Temperature: 83.9 °F Dew Point: 58 °F Humidity: 42% Wind: ENE at 3.0 mph Pressure: 30.13 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Corporate at Cindy Ln., Lewisville, TX

Updated: 1:13 PM CDT

Temperature: 85.5 °F Dew Point: 56 °F Humidity: 37% Wind: WNW at 2.2 mph Pressure: 29.88 in Hourly Precipitation: - Heat Index: 84 °F Graphs

Location: Chimney Rock, Flower Mound, TX

Updated: 1:14 PM CDT

Temperature: 88.0 °F Dew Point: 56 °F Humidity: 34% Wind: ESE at 4.9 mph Pressure: 29.65 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Double Oak Fire Dept, Double Oak, TX

Updated: 1:09 PM CDT

Temperature: 81.8 °F Dew Point: 50 °F Humidity: 33% Wind: North at 7.0 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Lakemont, Flower Mound, TX

Updated: 1:11 PM CDT

Temperature: 81.1 °F Dew Point: 54 °F Humidity: 40% Wind: ENE at 7.0 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: FM3040 at Old Orchard, Lewisville, TX

Updated: 1:14 PM CDT

Temperature: 85.0 °F Dew Point: 57 °F Humidity: 39% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Lewisville, Lewisville, TX

Updated: 1:04 PM CDT

Temperature: 85.8 °F Dew Point: 56 °F Humidity: 36% Wind: NNE at 3.7 mph Pressure: 30.13 in Hourly Precipitation: - Heat Index: 84 °F Graphs

Location: Indian Oaks, Lewisville, TX

Updated: 1:14 PM CDT

Temperature: 84.7 °F Dew Point: 52 °F Humidity: 33% Wind: NNW at 2.7 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Liberty Park, Southlake, TX

Updated: 1:14 PM CDT

Temperature: 81.1 °F Dew Point: 54 °F Humidity: 39% Wind: NE at 4.0 mph Pressure: 30.17 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Canyon Oaks, Argyle, TX

Updated: 1:14 PM CDT

Temperature: 85.7 °F Dew Point: 54 °F Humidity: 34% Wind: Calm Pressure: 30.16 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Woodlake Apartments, Grapevine, TX

Updated: 1:02 PM CDT

Temperature: 83.4 °F Dew Point: 57 °F Humidity: 41% Wind: North at 1.0 mph Pressure: 30.00 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: HV 2, Highland Village, TX

Updated: 1:14 PM CDT

Temperature: 88.5 °F Dew Point: 50 °F Humidity: 27% Wind: NE at 3.1 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Highland Shores, Highland Village, TX

Updated: 1:14 PM CDT

Temperature: 82.2 °F Dew Point: 55 °F Humidity: 39% Wind: NNW at 2.0 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Highland Shores 2, Highland Village, TX

Updated: 1:14 PM CDT

Temperature: 81.3 °F Dew Point: 53 °F Humidity: 38% Wind: East at 5.0 mph Pressure: 30.19 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Highland Shores 1, Highland Village, TX

Updated: 1:14 PM CDT

Temperature: 81.4 °F Dew Point: 56 °F Humidity: 41% Wind: ESE at 5.0 mph Pressure: 30.22 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Highland Village, Highland Village, TX

Updated: 1:14 PM CDT

Temperature: 82.7 °F Dew Point: 52 °F Humidity: 35% Wind: East at 3.0 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Courts, Trophy Club, TX

Updated: 1:09 PM CDT

Temperature: 87.1 °F Dew Point: 62 °F Humidity: 43% Wind: Calm Pressure: 29.36 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Lakeslide Estates, Lewisville, TX

Updated: 1:14 PM CDT

Temperature: 82.9 °F Dew Point: 55 °F Humidity: 39% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Shadow Ridge, Coppell, TX

Updated: 1:14 PM CDT

Temperature: 86.1 °F Dew Point: 56 °F Humidity: 36% Wind: NNW at 6.0 mph Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: 445 Ranch, Argyle, TX

Updated: 1:01 PM CDT

Temperature: 83.5 °F Dew Point: 54 °F Humidity: 36% Wind: NE at 5.3 mph Pressure: 29.89 in Hourly Precipitation: - Heat Index: 82 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Fort Worth Texas 
1243 PM CDT Monday Sep 22 2014 


Aviation... 
main concerns for the 18z taf cycle will be wind speed/direction for 
the metroplex tafs and ceilings across Waco taf site. 


For the metroplex tafs...persistent east northeasterly winds 
continue this afternoon in the wake of a weak frontal boundary 
that moved through the metroplex early this morning. Latest hrrr 
model guidance is handling near term very well...but still 
probably turns winds too quickly to the NE later this afternoon. As a 
result...have carried east-northeast winds through this evening. 10 to 15 
knot winds should eventually decrease and will become more east 
and southeast in response to the Lee trough across Colorado. VFR 
ceilings and visby should prevail throughout the entire taf cycle with 
just some high level cirrus overspreading the region. 


For the Waco taf...the weak cold front continues to slide to the 
south. A few isolated showers cannot be ruled out...but overall 
confidence remains low and does not warrant inclusion into the taf 
at this time. Relatively drier air should move into central Texas 
later this afternoon and will result in decreasing rain chances 
and improving ceilings. Some high based cumulus will still linger through 
late afternoon into the evening with some high level cirrus moving 
in. 


15/30 


&& 


Update... 
main change to the forecast this morning was due to slightly 
varying wind direction...sky coverage...temperature and dewpoint 
from the previous package. 


Most coarse and even hi-resolution model guidance has winds a tad 
bit more backed /more northeasterly/ than actual observations 
show...and have adjusted wind speeds/directions to reflect more of an 
easterly direction through the middle afternoon. 12z forward radiosonde observation 
revealed that the depth of the easterly winds extended up to 
around 925 mb...likely demarcating the top of the mixed layer. 
With about 20-25 knots aloft...have increased wind speeds at the 
surface to account for some momentum Transfer. Also...with the 
more easterly winds...we have slowed the progression of the 
magnitude of the dry air advection across the southern zones. This 
should help to curb the diurnal range of temperatures across this region 
and as a result have nudged maximum temperatures down a degree or two as well. 
Despite the relatively more moist conditions across the southern 
zones...have removed mention of thunder due to poor lapse rates 
aloft. 


The rest of the package appeared in fine shape and no other 
changes were necessary. 


15/92/30 




&& 


Previous discussion... /issued 400 am CDT Monday Sep 22 2014/ 
a cold front has pushed south of the I-20 corridor and will 
continue moving southwestward across north and central Texas 
today. Showers developed during the predawn hours in the vicinity 
of the lagging 850mb front...along which a moisture discontinuity 
will intensify today. Despite meager lapse rates above 850mb...the 
steepness of the frontal slope 5-10kft above ground level is enhancing the 
mechanical forcing to the extent that updrafts have been able to 
produce a few cloud-to-ground lightning strikes. The primary 
convective Mode today will be showers...albeit isolated...but a 
few thunderstorms will be possible along the advancing elevated 
front into the afternoon hours. As such...the arrival of drier air 
at the surface will not mean an end to rain chances. 


Sunshine will offset weak cold advection in the low-levels. Though 
several degrees cooler than Sunday afternoon...high temperatures 
today will still be near normal. Pleasant Post-frontal dew points 
may dip below 50 degrees this afternoon. Lee troughing at the 
surface will gradually develop through midweek...but a middle-level 
ridge building into the Ohio Valley will keep the autumn-like 
surface high in place across the eastern states. As a result... 
easterly surface flow will persist across north and central 
Texas...recycling mild and dry air throughout the week. This will 
keep temperatures near normal and prevent Gulf moisture from 
returning. 


The upper low...now swinging through the intermountain west...will 
separate from the polar flow as it moves into the northern plains. 
The unseasonably strong ridging from the prairie provinces into 
the Canadian Arctic will race eastward...leaving behind the trough 
south of the 49th parallel. Although ridging aloft will dominate 
Texas early in the week...guidance is in fairly good agreement 
that this feature in the plains will effectively split the upper 
ridge. Troughiness over Texas late in the week is prognosticated to 
intensify into the upcoming weekend...but any forcing associated 
with this is unlikely to result in precipitation. With a dry 
boundary layer and even drier mid-levels...precipitable water values will remain 
unseasonably low across north and central Texas. 


25 






&& 


Climate... 
our equinox cold front is nothing compared to the Arctic air that 
invaded the region in September 1983...resulting in a remarkably 
early first frost. On the morning of September 22...temperatures 
plunged into the 30s throughout our northern and western zones. 
The chilliest spots were Bridgeport and Lampasas...both of which 
dipped to 35 degrees. 


The autumnal equinox is at 929 PM CDT this evening. 


&& 


Preliminary point temps/pops... 
Dallas-ft. Worth, Texas 87 63 85 62 87 / 10 0 0 0 0 
Waco, Texas 88 61 86 60 87 / 20 5 0 0 0 
Paris, Texas 82 58 82 56 83 / 0 0 0 0 0 
Denton, Texas 86 59 84 58 86 / 10 0 0 0 0 
McKinney, Texas 85 56 84 56 85 / 10 0 0 0 0 
Dallas, Texas 87 63 85 62 87 / 10 0 0 0 0 
Terrell, Texas 85 59 84 58 85 / 10 0 0 0 0 
Corsicana, Texas 88 61 85 59 86 / 10 0 0 0 0 
Temple, Texas 89 61 86 61 88 / 20 5 5 0 0 
Mineral Wells, Texas 86 59 85 58 87 / 10 5 0 5 0 


&& 


Forward watches/warnings/advisories... 
none. 


&& 


$$ 


/ 



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