Lancaster, Texas Weather Conditions

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Current Conditions

  • 77°
  • Clear
  • Wind: South 8 mph
  • Humidity: 84%
  • Visibility: 10.0 miles
  • Dew Point: 72°
  • Pressure: 29.99 in. +

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Next 12 Hours

4  am
7  am
10  am
1  pm
4  pm
Partly Cloudy
Partly Cloudy
Fog
Fog
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Clear
75°
73°
86°
90°
97°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Partly Cloudy
  • High: 97 °
  • Low: 73 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 95 °
  • Low: 73 °
  • Partly Cloudy
  • Saturday
  • Clear
  • High: 99 °
  • Low: 73 °
  • Clear
  • Sunday
  • Clear
  • High: 97 °
  • Low: 73 °
  • Clear
  • Monday
  • Clear
  • High: 95 °
  • Low: 75 °
  • Clear

Forecast for Lancaster, Texas

Updated: 4:00 AM CDT on August 21, 2014

  • Thursday

    Partly cloudy. Fog early. High of 97F. Breezy. Winds from the South at 10 to 20 mph.

  • Thursday Night

    Partly cloudy. Low of 73F. Winds from the South at 10 to 15 mph.

  • Friday

    Partly cloudy. High of 95F. Winds from the South at 10 to 15 mph.

  • Friday Night

    Clear. Low of 73F. Winds from the South at 5 to 15 mph.

  • Saturday

    Clear. High of 99F. Winds from the South at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 73F. Winds from the South at 5 to 15 mph.

  • Sunday

    Clear. High of 97F. Winds from the South at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 73F. Winds from the South at 5 to 10 mph.

  • Monday

    Clear in the morning, then partly cloudy. High of 95F. Winds from the South at 5 to 10 mph.

  • Monday Night

    Clear. Low of 75F. Winds from the South at 5 to 10 mph.

  • Tuesday

    Clear. High of 95F. Winds from the South at 5 to 10 mph.

  • Tuesday Night

    Partly cloudy. Low of 73F. Winds from the SE at 5 to 10 mph.

  • Wednesday

    Partly cloudy. High of 95F. Winds less than 5 mph.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm. Low of 72F. Winds from the SSE at 5 to 10 mph. Chance of rain 40%.

  • Thursday

    Partly cloudy with a chance of a thunderstorm. High of 91F. Winds from the NNW at 5 to 10 mph. Chance of rain 20%.

  • Thursday Night

    Clear. Low of 64F. Winds from the NNE at 5 to 15 mph.

  • Friday

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

  • Friday Night

    Clear. Low of 70F. Winds less than 5 mph.

  • Saturday

    Clear. High of 93F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 72F. Winds less than 5 mph.

  • Sunday

    Clear. High of 97F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 72F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Werner Ent. Dallas, Dallas, TX

Updated: 5:09 AM CDT

Temperature: 77.6 °F Dew Point: 73 °F Humidity: 86% Wind: SSW at 5.0 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: DDR Longhorns Red Oak, Texas, Red Oak, TX

Updated: 5:09 AM CDT

Temperature: 75.7 °F Dew Point: 72 °F Humidity: 89% Wind: SW at 2.0 mph Pressure: 29.42 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Johnson Lane, Ovilla, TX

Updated: 5:07 AM CDT

Temperature: 77.2 °F Dew Point: 74 °F Humidity: 91% Wind: SE at 8.3 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Sleepy Hollow II, Cedar Hill, TX

Updated: 5:09 AM CDT

Temperature: 78.8 °F Dew Point: 70 °F Humidity: 75% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Heritage Ct, Midlothian, TX

Updated: 4:55 AM CDT

Temperature: 76.6 °F Dew Point: 74 °F Humidity: 90% Wind: West at 1.0 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Stevens Park Village, Dallas, TX

Updated: 5:05 AM CDT

Temperature: 79.7 °F Dew Point: 75 °F Humidity: 85% Wind: NE at 5.4 mph Pressure: 30.67 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Curtis Addn, Midlothian, TX

Updated: 5:09 AM CDT

Temperature: 76.8 °F Dew Point: 74 °F Humidity: 91% Wind: SW at 1.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Ellis County, Texas, Waxahachie, TX

Updated: 5:02 AM CDT

Temperature: 76.6 °F Dew Point: 72 °F Humidity: 86% Wind: SSW at 4.7 mph Pressure: 29.83 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: 20 Summit Pl, Cedar Hill, TX

Updated: 5:09 AM CDT

Temperature: 77.5 °F Dew Point: 74 °F Humidity: 90% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: MesoWest JUNPT1 TX US UPR, Grand Prairie, TX

Updated: 4:00 AM CDT

Temperature: 78 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Bryan Parkway, Dallas, TX

Updated: 5:09 AM CDT

Temperature: 79.0 °F Dew Point: 73 °F Humidity: 82% Wind: SE at 6.9 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Lakeridge, Cedar Hill, TX

Updated: 5:09 AM CDT

Temperature: 81.9 °F Dew Point: 72 °F Humidity: 73% Wind: SW at 1.1 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Spring Creek Grove, Waxahachie, TX

Updated: 5:04 AM CDT

Temperature: 77.0 °F Dew Point: 76 °F Humidity: 98% Wind: SSW at 2.7 mph Pressure: 29.82 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: NE Midlothian, Midlothian, TX

Updated: 5:09 AM CDT

Temperature: 77.5 °F Dew Point: 74 °F Humidity: 89% Wind: SW at 2.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Estates of Garden Valley, Waxahachie, TX

Updated: 5:03 AM CDT

Temperature: 77.0 °F Dew Point: 73 °F Humidity: 88% Wind: WNW at 8.3 mph Pressure: 29.82 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Road / Bridge 1 Ellis County TX, Palmer, TX

Updated: 5:09 AM CDT

Temperature: 77.9 °F Dew Point: 74 °F Humidity: 88% Wind: South at 8.1 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Road / Bridge 4 Ellis County TX, Midlothian, TX

Updated: 5:09 AM CDT

Temperature: 77.2 °F Dew Point: 73 °F Humidity: 87% Wind: SSE at 10.1 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: MesoWest MIDLOT TX US UPR, Midlothian, TX

Updated: 3:40 AM CDT

Temperature: 75 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Lakewood, Dallas, TX

Updated: 5:05 AM CDT

Temperature: 78.2 °F Dew Point: 74 °F Humidity: 87% Wind: SW at 1.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Little Forest Hills, Dallas, TX

Updated: 5:09 AM CDT

Temperature: 78.4 °F Dew Point: 75 °F Humidity: 90% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: East Dallas, Dallas, TX

Updated: 5:09 AM CDT

Temperature: 78.4 °F Dew Point: 74 °F Humidity: 85% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Gingerbread Ln, Waxahachie, TX

Updated: 5:08 AM CDT

Temperature: 76.6 °F Dew Point: 74 °F Humidity: 92% Wind: SSW at 2.2 mph Pressure: 29.98 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: West Highland Park, Dallas, TX

Updated: 5:08 AM CDT

Temperature: 79.5 °F Dew Point: 74 °F Humidity: 82% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Vivian Drive, Waxahachie, TX

Updated: 5:07 AM CDT

Temperature: 77.4 °F Dew Point: 72 °F Humidity: 84% Wind: Calm Pressure: 29.80 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: Offices of Steve Boulton, Waxahachie, TX

Updated: 5:01 AM CDT

Temperature: 77.4 °F Dew Point: 74 °F Humidity: 89% Wind: ESE at 3.2 mph Pressure: 29.95 in Hourly Precipitation: - Heat Index: 79 °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 
415 am CDT Thursday Aug 21 2014 


Discussion... 
a remarkably Stout low level jet for this time of year (35-40kts) has 
resulted in widespread (albeit thin) stratus along the Balcones 
Escarpment. A fibrous deck has invaded southern portions of the 
County Warning Area early this morning...and a few fragments will likely reach the 
I-20 corridor after daybreak. As these strong winds mix with the 
surface layer later this morning...wind gusts will pick up again. 
Sunny skies will push temperatures back up into the upper 90s to 
near 100 degrees...but the wind will help take an edge off the 
heat. With the best moisture flux into Louisiana today...expect 
the western extent of the sea breeze activity this afternoon will 
be in far southeast Texas. 


The troughing in the western states is prognosticated to be a bit weaker 
with the main upper low taking a sharp left turn into the prairie 
provinces late in the weekend. As a result...the middle-level ridge 
in the southeast will be able to build farther west the previously 
prognosticated. The ridge will be neatly stacked vertically above the 
boundary layer...from 10kft above mean sea level to around 35kft...which will 
assure subsidence will dominate into next week. However...its 
intensity is still rather Ordinary for August...and its placement 
east of Texas should prevent temperatures from soaring into the 
triple digits. In addition...breezy conditions will continue the 
remainder of the week...which will prevent optimal heating of the 
surface layer. This will reduce high temperatures 1-2 degrees from 
what would otherwise be expected...meaning that achieving triple- 
digit highs will be a little more difficult. A nightly low level jet will 
mean repeated stratus intrusions...primarily into central Texas. 
These morning clouds will be short-lived and will do little to 
prevent hot afternoons. Heat index values will easily top 100 but 
should remain below 105. 


A piece of upper vorticity is still prognosticated to eject from the 
TUTT south of Brownsville...and the southerly flow beneath it will 
guide it northward over the Lone Star state. The polar jet will 
effectively shear it...but the troughiness in the upper reaches 
of the troposphere will linger through the weekend. Even so...the 
feature will quickly become an open wave and should be unable to 
disrupt the deep subsidence beneath it. 


As the upper low enters Canada...the flow aloft into the Central 
Plains will diminish considerably. A corresponding weakening of 
the persistent Lee trough will mean lighter surface winds across 
north and central Texas. This will bring an end to the morning 
stratus and will make the heat feel a little more oppressive... 
but it may also allow the sea breeze to reawaken. 


The GFS and European model (ecmwf) solutions diverge next week...with the European model (ecmwf) 
developing a cut-off low and the GFS far more progressive. The 
Canadian is a compromise between the two...but leans toward the 
GFS in that it keeps the flow unimpeded. Despite considerable 
spread among the GFS ensemble members...the consensus favors a 
frontal passage late next week. Have introduced north winds and 
slight precipitation chances on Thursday next week...but these will not 
appear in the public forecast until the afternoon package today. 


25 


&& 


Fire weather... 
hot and rain-free conditions will persist through the weekend. A 
broad upper high will be centered across the western Gulf states 
and will result in highs between the middle 90s and 102 degrees 
across the area. Hottest high temperatures will be across the 
far western counties where deeper mixing will result in lower 
afternoon humidity values each day between 20 and 30 percent. 
However...20 foot winds will remain sustained between 10 to 15 miles per hour 
with occasional gusts exceeding 20 miles per hour. A weak surface low near 
the western half of North Texas should keep winds from becoming 
too strong. This area will need to be watched closely in the 
coming days for a high fire danger...particularly those areas 
northwest of a Gainesville...Decatur...Comanche line. Fuel moisture 
levels at both possum kingdom Reservoir and Miller/S creek RAWS 
observations were already below 10...indicating some drying of 
fine fuels across the area. 


Otherwise...areas further to the east may see occasional higher 
gusts but will also see Richer Gulf moisture and afternoon 
humidity values remaining above critical levels. The higher 
humidity across the eastern areas should hold high temperatures 
into middle to upper 90s. The fire danger should remain low into early 
next week...as wind speeds remain below 15 miles per hour. 


05 


&& 


Aviation... 
/issued 1148 PM CDT Wednesday Aug 20 2014/ 
/06z tafs/ 


Concerns...MVFR ceilings early Thursday morning. 


MVFR ceilings are expected to move north across the region early 
Thursday morning. Most of the hi-res guidance this evening 
indicates the low level stratus between 1-2 kft will arrive at 
kact around 12-13z. Most of the guidance also brings the stratus 
into the metroplex around 14z with bases between 2-3 kft...however 
some of the guidance keeps the stratus to the east of the 
metroplex. Will keep the MVFR ceilings in the metroplex taf sites. The 
stratus should lift to VFR and scatter around 16-17z with VFR 
prevailing the rest of the day. Otherwise...south winds between 
10-17 kts will continue with occasional gusts to 25 
kts...especially in the afternoon hours. 


82/jld 


&& 


Preliminary point temps/pops... 
Dallas-ft. Worth, Texas 99 78 99 78 100 / 0 0 0 0 0 
Waco, Texas 100 76 100 76 100 / 0 0 0 0 0 
Paris, Texas 97 74 97 74 98 / 0 0 0 0 0 
Denton, Texas 99 77 99 75 100 / 0 0 0 0 0 
McKinney, Texas 97 75 98 74 99 / 0 0 0 0 0 
Dallas, Texas 99 78 99 79 99 / 0 0 0 0 0 
Terrell, Texas 97 75 98 75 98 / 0 0 0 0 0 
Corsicana, Texas 98 75 98 75 98 / 0 0 0 0 0 
Temple, Texas 99 76 98 74 98 / 0 0 0 0 0 
Mineral Wells, Texas 99 73 99 73 101 / 0 0 0 0 0 


&& 


Forward watches/warnings/advisories... 
none. 


&& 


$$ 


05/25 










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