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

Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Overcast

80°F

27°C

Humidity 71%
Wind Speed SW 7 mph
Barometer 30.05 in (1017.3 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 13 Jul 11:53 am CDT
Extended Forecast for

McKinney TX

Flood Watch July 13, 01:19pm until July 13, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 13, 01:19pm until July 13, 07:00pm

    NOW until 7:00pm Sun

    Flood Watch

  • This Afternoon

    High: 84 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 73. South wind around 5 mph.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 88. South wind around 5 mph.

    High: 88 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. South wind around 5 mph becoming northwest in the evening.

    Low: 73 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. South southwest wind 5 to 10 mph.

    High: 92 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 94. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a steady temperature around 84. South wind 5 to 10 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 73. South wind around 5 mph.
Monday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 88. South wind around 5 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. South wind around 5 mph becoming northwest in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. South southwest wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 75. South wind 5 to 10 mph.
Wednesday
Sunny, with a high near 94. South wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 76. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 96. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 75.
Friday
Mostly sunny, with a high near 96.
Friday Night
Mostly clear, with a low around 75.
Saturday
Mostly sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
McKinney TX
 33.19°N 96.62°W (Elev. 587 ft)
Last Update:
12:24 pm CDT Jul 13, 2025
Forecast Valid:
1pm CDT Jul 13, 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