Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

79°F

26°C

Humidity 82%
Wind Speed S 5 mph
Barometer 29.90 in (1011.7 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 6 Sep 2:53 am CDT
Extended Forecast for

Princeton TX

Heat Advisory September 6, 12:00pm until September 6, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Clear, with a steady temperature around 80. Calm wind.

    Low: 80 °F

    Clear

  • Sunday

    Sunday: A 10 percent chance of showers and thunderstorms after 4pm.  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

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before 7pm.  Clear, with a low around 78. Southeast wind around 5 mph becoming calm  after midnight.

    Low: 78 °F

    Slight Chance
    T-storms then
    Clear

  • Labor Day

    Labor Day: Sunny and hot, with a high near 101. Heat index values as high as 107. Light south wind becoming southeast 5 to 10 mph in the afternoon.

    High: 101 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 78. Southeast wind around 5 mph.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. South southeast wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Tuesday Night

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

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100. South wind 5 to 10 mph.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. South southeast wind around 5 mph.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a steady temperature around 80. Calm wind.
Sunday
A 10 percent chance of showers and thunderstorms after 4pm. 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.
Sunday Night
A 10 percent chance of showers and thunderstorms before 7pm. Clear, with a low around 78. Southeast wind around 5 mph becoming calm after midnight.
Labor Day
Sunny and hot, with a high near 101. Heat index values as high as 107. Light south wind becoming southeast 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 78. Southeast wind around 5 mph.
Tuesday
Sunny and hot, with a high near 101. South southeast wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 78. South southeast wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 100. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 77. South southeast wind around 5 mph.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Friday
Mostly sunny and hot, with a high near 99.
Friday Night
Partly cloudy, with a low around 76.
Saturday
Sunny and hot, with a high near 99.
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton TX
 33.19°N 96.49°W (Elev. 545 ft)
1:26 am CDT Sep 6, 2026
3am CDT Sep 6, 2026-6pm CDT Sep 12, 2026
 
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Additional Resources

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