Three Weather Areas of Concern Today

Potential Tropical Cyclone Three will gradually approach the northern Gulf Coast with heavy rain and potential flooding. Meanwhile, a sharp cold front will produce severe thunderstorms with significant winds, hail, tornadoes and possible flooding across the Ohio Valley. Finally, a large dome of high pressure will continue the major heat wave over the West, extending into the central Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Partly Cloudy

91°F

33°C

Humidity 52%
Wind Speed SE 6 mph
Barometer 29.97 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 18 Jun 12:50 pm CDT
Extended Forecast for

Denison TX

  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 94. Heat index values as high as 99. Southeast wind 5 to 10 mph.

    Mostly Sunny

    High: 94 °F

  • Tonight

    Tonight: Mostly clear, with a low around 72. Southeast wind 5 to 10 mph.

    Mostly Clear

    Low: 72 °F

  • Saturday

    Saturday: Sunny, with a high near 93. South southeast wind 5 to 10 mph.

    Sunny

    High: 93 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 72. South southeast wind around 5 mph.

    Mostly Clear

    Low: 72 °F

  • Sunday

    Sunday: Sunny, with a high near 97. South wind 5 to 15 mph, with gusts as high as 20 mph.

    Sunny

    High: 97 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 75. South wind 10 to 15 mph.

    Mostly Clear

    Low: 75 °F

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 90. South wind 10 to 15 mph becoming east in the afternoon. Winds could gust as high as 25 mph.

    Partly Sunny
    then Chance
    T-storms

    High: 90 °F

  • Monday
    Night

    Monday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 64. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Chance
    T-storms

    Low: 64 °F

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 83. Northeast wind around 10 mph.

    Slight Chance
    T-storms

    High: 83 °F

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 94. Heat index values as high as 99. Southeast wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 72. Southeast wind 5 to 10 mph.
Saturday
Sunny, with a high near 93. South southeast wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 72. South southeast wind around 5 mph.
Sunday
Sunny, with a high near 97. South wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 75. South wind 10 to 15 mph.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. South wind 10 to 15 mph becoming east in the afternoon. Winds could gust as high as 25 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 83. Northeast wind around 10 mph.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
Mostly sunny, with a high near 91.
Click Map For Forecast
Point Forecast:
Denison TX
 33.75°N 96.57°W (Elev. 748 ft)
12:31 pm CDT Jun 18, 2021
1pm CDT Jun 18, 2021-6pm CDT Jun 24, 2021
 
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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