Heavy Rain Threatens the Mid-Atlantic on Sunday While Fire Weather Conditions Worsen in the Southwest

Heavy rain is bringing a flash flood risk to parts of the Mid-Atlantic on Sunday. This activity will diminish overnight. On Monday, the focus shifts into the Plains and Mississippi Valley where severe thunderstorms and heavy rains will be possible through Tuesday. Meanwhile, hot conditions and Critical Fire Weather looms over the Great Basin and Southwest U.S. through midweek. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

79°F

26°C

Humidity 74%
Wind Speed NE 5 mph
Barometer 29.96 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 15 Jun 5:50 pm CDT
Extended Forecast for

Sherman TXSimilar City Names

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 4am.  Mostly cloudy, with a low around 72. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 72 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 10am.  Mostly cloudy, then gradually becoming sunny, with a high near 90. Heat index values as high as 102. Calm wind becoming west around 5 mph in the morning.

    High: 90 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South wind around 5 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92. Heat index values as high as 105. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 92 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 74. South wind 5 to 10 mph.

    Low: 74 °F

    Chance
    Showers then
    Chance
    T-storms

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 92. South southwest wind around 5 mph.

    High: 92 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. South southeast wind around 5 mph.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 72. Northeast wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 90. Heat index values as high as 102. Calm wind becoming west around 5 mph in the morning.
Monday Night
Mostly clear, with a low around 75. South wind around 5 mph.
Tuesday
Sunny, with a high near 92. Heat index values as high as 105. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 76. South wind around 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. South wind 5 to 10 mph.
Juneteenth
Mostly sunny, with a high near 92. South southwest wind around 5 mph.
Thursday Night
Mostly clear, with a low around 75. South southeast wind around 5 mph.
Friday
Sunny, with a high near 94.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Sherman TXSimilar City Names
 33.62°N 96.6°W (Elev. 699 ft)
5:43 pm CDT Jun 15, 2025
6pm CDT Jun 15, 2025-6pm CDT Jun 22, 2025
 
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Additional Resources

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