Storms in the East; Monsoons and Fire Weather Out West

A slow moving frontal system will bring strong to severe storms, and, locally heavy rain from the Plains to the Northeast. Monsoon moisture shifts to the east into portions of the southern Plains and may produce excessive rains across portions of the High Plains and desert southwest. Fire Weather threats remain elevated to critical with isolated dry thunderstorms in the Intermountain West. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Light Rain

82°F

28°C

Humidity 72%
Wind Speed SW 9 mph
Barometer 30.04 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 17 Aug 7:55 am CDT
Extended Forecast for

Denison TX

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny, with a high near 96. Heat index values as high as 103. Southwest wind 10 to 15 mph.

    Chance
    T-storms

    High: 96 °F

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 2am.  Partly cloudy, with a low around 75. South wind 5 to 10 mph becoming east southeast after midnight.

    Chance
    T-storms

    Low: 75 °F

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 94. Heat index values as high as 101. South southeast wind around 5 mph becoming west northwest in the afternoon.

    Slight Chance
    T-storms

    High: 94 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 8pm.  Mostly cloudy, with a low around 75. East northeast wind around 5 mph.

    Chance
    T-storms

    Low: 75 °F

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 92. South wind 5 to 10 mph.

    Chance
    T-storms

    High: 92 °F

  • Sunday
    Night

    Sunday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 74. South wind 5 to 10 mph.

    Chance
    T-storms

    Low: 74 °F

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 90. South southwest wind around 5 mph becoming northwest in the afternoon.

    Chance
    T-storms

    High: 90 °F

  • Monday
    Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Mostly clear, with a low around 69. North northwest wind 5 to 10 mph.

    Chance
    T-storms then
    Mostly Clear

    Low: 69 °F

  • Tuesday

    Tuesday: Sunny, with a high near 88. North northwest wind 5 to 10 mph.

    Sunny

    High: 88 °F

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 96. Heat index values as high as 103. Southwest wind 10 to 15 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 75. South wind 5 to 10 mph becoming east southeast after midnight.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Heat index values as high as 101. South southeast wind around 5 mph becoming west northwest in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 75. East northeast wind around 5 mph.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 92. South wind 5 to 10 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. South wind 5 to 10 mph.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. South southwest wind around 5 mph becoming northwest in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 69. North northwest wind 5 to 10 mph.
Tuesday
Sunny, with a high near 88. North northwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Sunny, with a high near 88.
Click Map For Forecast
Point Forecast:
Denison TX
 33.75°N 96.57°W (Elev. 748 ft)
5:05 am CDT Aug 17, 2018
8am CDT Aug 17, 2018-6pm CDT Aug 23, 2018
 
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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