Heavy to Excessive Rainfall and Flooding Threats in the Central and Eastern U.S.; Heat and Fire Weather Concerns in the West

Thunderstorms producing excessive rainfall and potential flooding concerns will continue through tonight from the Southern Plains to the East Coast. Areas of greatest concern for flooding are over central Texas and the Mid-Atlantic. Heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue through Monday. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

A Few Clouds

90°F

32°C

Humidity 52%
Wind Speed W 6 mph
Barometer 29.97 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 13 Jul 5:50 pm CDT
Extended Forecast for

4 Miles WSW Pottsboro TX

Flood Watch July 13, 06:28pm until July 13, 07:00pm
Click here for hazard details and duration
...
  •  
    Flood Watch July 13, 06:28pm until July 13, 07:00pm

    NOW until 7:00pm Sun

    Flood Watch

  • Tonight

    Low: 72 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 87. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 87 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 72. South wind around 5 mph.

    Low: 72 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Partly sunny, with a high near 91. Heat index values as high as 99. South wind 5 to 10 mph.

    High: 91 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. South wind 5 to 10 mph.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 95. South wind 5 to 10 mph.

    High: 95 °F

    Mostly Sunny

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming east northeast around 5 mph in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind around 5 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. Heat index values as high as 99. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 74. South wind 5 to 10 mph.
Wednesday
Sunny, with a high near 93. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 95. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 74. South wind around 5 mph.
Friday
Mostly sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 75.
Saturday
Mostly sunny, with a high near 96.
Saturday Night
Mostly clear, with a low around 76.
Sunday
Sunny, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Pottsboro TX
 33.75°N 96.74°W (Elev. 699 ft)
5:25 pm CDT Jul 13, 2025
6pm CDT Jul 13, 2025-6pm CDT Jul 20, 2025
 
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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