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

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Thunderstorm in Vicinity and Breezy

26°C

78°F

Humidity 71%
Wind Speed NW 33 G 54 km/h
Barometer 1015.2 mb (29.99 in)
Dewpoint 20°C (68°F)
Visibility 16 km
Heat Index27°C (80°F)
Last update 12 Jul 7:53 pm CDT
Extended Forecast for

Allen TX

Flood Watch July 12, 08:24pm until July 13, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 12, 08:24pm until July 13, 07:00pm

    NOW until 7:00pm Sun

    Flood Watch

  • Tonight

    Low: 23 °C

    T-storms
    Likely

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 31. South southwest wind 10 to 15 km/h. New rainfall amounts between 2 and 3 cm possible.

    High: 31 °C

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 23. South southwest wind around 10 km/h.

    Low: 23 °C

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 32. Heat index values as high as 37. South southwest wind 10 to 15 km/h.

    High: 32 °C

    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. South wind around 10 km/h.

    Low: 24 °C

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34. South wind 10 to 20 km/h, with gusts as high as 30 km/h.

    High: 34 °C

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 24. South wind 10 to 15 km/h.

    Low: 24 °C

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 35. South wind 15 to 20 km/h, with gusts as high as 30 km/h.

    High: 35 °C

    Mostly Sunny

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 23. South wind 10 to 15 km/h. Chance of precipitation is 70%. New rainfall amounts between 5 and 7.5 mm possible.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 31. South southwest wind 10 to 15 km/h. New rainfall amounts between 2 and 3 cm possible.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 23. South southwest wind around 10 km/h.
Monday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 32. Heat index values as high as 37. South southwest wind 10 to 15 km/h.
Monday Night
Partly cloudy, with a low around 24. South wind around 10 km/h.
Tuesday
Mostly sunny, with a high near 34. South wind 10 to 20 km/h, with gusts as high as 30 km/h.
Tuesday Night
Mostly clear, with a low around 24. South wind 10 to 15 km/h.
Wednesday
Mostly sunny, with a high near 35. South wind 15 to 20 km/h, with gusts as high as 30 km/h.
Wednesday Night
Mostly clear, with a low around 24. South wind 10 to 15 km/h.
Thursday
Mostly sunny, with a high near 36.
Thursday Night
Mostly clear, with a low around 24.
Friday
Mostly sunny, with a high near 36.
Friday Night
Mostly clear, with a low around 25.
Saturday
Mostly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Allen TX
 33.1°N 96.67°W (Elev. 656 m)
Last Update:
5:26 pm CDT Jul 12, 2025
Forecast Valid:
8pm CDT Jul 12, 2025-6pm CDT Jul 19, 2025
 
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