National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Weather Expected From the South to the Midwest; Critical Fire Weather in the Southwest; Excessive Heat in Texas

Isolated to scattered severe thunderstorms are expected to develop from the southern Plains to portions of the Midwest Friday. Damaging winds and very large hail will be the primary hazards. On the drier side of the system, critical fire weather conditions will be possible across the Southwest. Meanwhile, excessive heat concerns continue to impact portions of southern Texas and Florida. Read More >

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

73°F

23°C

Humidity 79%
Wind Speed Calm
Barometer 29.79 in (1008.2 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 25 May 1:53 am CDT
Extended Forecast for

Allen TX

  • Overnight

    Overnight: Mostly clear early, then becoming mostly cloudy, with a low around 73. South southeast wind around 5 mph.

    Low: 73 °F

    Mostly Cloudy

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, cloudy, then becoming mostly sunny during the afternoon, with a high near 91. Heat index values as high as 102. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 91 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms between 9pm and midnight. Partly cloudy, with a low around 76. South southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. Heat index values as high as 101. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 97 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 71. South southwest wind 5 to 10 mph becoming southeast in the evening.

    Low: 71 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 94. South southeast wind 5 to 10 mph becoming east in the afternoon.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 69. East northeast wind 5 to 10 mph.

    Low: 69 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88. East wind 5 to 10 mph.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69. East wind 5 to 10 mph.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear early, then becoming mostly cloudy, with a low around 73. South southeast wind around 5 mph.
Saturday
Patchy fog before 10am. Otherwise, cloudy, then becoming mostly sunny during the afternoon, with a high near 91. Heat index values as high as 102. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night
A slight chance of showers and thunderstorms between 9pm and midnight. Partly cloudy, with a low around 76. South southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. Heat index values as high as 101. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 71. South southwest wind 5 to 10 mph becoming southeast in the evening.
Memorial Day
Sunny, with a high near 94. South southeast wind 5 to 10 mph becoming east in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 69. East northeast wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 88. East wind 5 to 10 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69. East wind 5 to 10 mph.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Allen TX
 33.1°N 96.67°W (Elev. 656 ft)
Last Update:
12:12 am CDT May 25, 2024
Forecast Valid:
2am CDT May 25, 2024-6pm CDT May 31, 2024
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation