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Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

98°F

37°C

Humidity 36%
Wind Speed SE 8 G 17 mph
Barometer 29.86 in (1010.1 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 6 Sep 4:53 pm CDT
Extended Forecast for

Anna TX

Heat Advisory September 6, 05:26pm until September 7, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 6, 05:26pm until September 7, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 99 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 77. South southeast wind 5 to 10 mph becoming light south southwest after midnight.

    Low: 77 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny and hot, with a high near 100. Heat index values as high as 105. Light south southeast wind becoming southeast 5 to 10 mph in the afternoon.

    High: 100 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 78. South southeast wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. South wind 5 to 10 mph.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 78. South wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. South wind 5 to 10 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 77. South southeast wind 5 to 10 mph.

    Low: 77 °F

    Clear

Detailed Forecast

This Afternoon
A 10 percent chance of showers and thunderstorms. Sunny and hot, with a high near 99. Heat index values as high as 103. Southeast wind around 10 mph.
Tonight
Mostly clear, with a low around 77. South southeast wind 5 to 10 mph becoming light south southwest after midnight.
Labor Day
Sunny and hot, with a high near 100. Heat index values as high as 105. Light south southeast wind becoming southeast 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 78. South southeast wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 99. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 78. South wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 99. South wind 5 to 10 mph.
Wednesday Night
Clear, with a low around 77. South southeast wind 5 to 10 mph.
Thursday
A 20 percent chance of showers after 1pm. Sunny, with a high near 97. South wind around 5 mph becoming east in the afternoon.
Thursday Night
Partly cloudy, with a low around 77.
Friday
Mostly sunny, with a high near 97.
Friday Night
Mostly clear, with a low around 76.
Saturday
Sunny, with a high near 97.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Mostly sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Anna TX
 33.35°N 96.57°W (Elev. 699 ft)
Last Update:
1:26 pm CDT Sep 6, 2026
Forecast Valid:
5pm CDT Sep 6, 2026-6pm CDT Sep 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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