Heavy Rain and Storms in the East; Fire Weather Threats in the West

A slow moving frontal system will bring strong to severe storms and locally heavy rain from the Northeast to the southern Plains. Meanwhile, Fire Weather threats remain elevated over the northern Inter-Mountain West, as Red Flag Warnings and Fire weather watches are in effect. Also, the potential for isolated dry thunderstorms remains possible across this portion of the West. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

96°F

36°C

Humidity 41%
Wind Speed S 10 mph
Barometer 29.94 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 17 Aug 5:55 pm CDT
Extended Forecast for

Denison TX

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 11pm.  Partly cloudy, with a low around 77. Southwest wind 5 to 10 mph becoming east southeast after midnight.

    Chance
    T-storms

    Low: 77 °F

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 93. Heat index values as high as 100. South southeast wind around 5 mph becoming northwest in the afternoon.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    High: 93 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 8pm.  Mostly cloudy, with a low around 76. North northeast wind around 5 mph becoming east southeast after midnight.

    Chance
    T-storms

    Low: 76 °F

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 92. Heat index values as high as 101. East southeast wind 5 to 10 mph becoming south in the afternoon.

    Chance
    T-storms

    High: 92 °F

  • Sunday
    Night

    Sunday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 75. Southeast wind 5 to 10 mph.

    Chance
    T-storms

    Low: 75 °F

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 91. South southwest wind 5 to 10 mph becoming west northwest in the afternoon.

    Chance
    T-storms

    High: 91 °F

  • Monday
    Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Mostly clear, with a low around 70. North wind around 5 mph.

    Chance
    T-storms then
    Mostly Clear

    Low: 70 °F

  • Tuesday

    Tuesday: Sunny, with a high near 90. North northwest wind around 5 mph.

    Sunny

    High: 90 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 68. North northeast wind around 5 mph.

    Mostly Clear

    Low: 68 °F

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 11pm. Partly cloudy, with a low around 77. Southwest wind 5 to 10 mph becoming east southeast after midnight.
Saturday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 100. South southeast wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 20%.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 76. North northeast wind around 5 mph becoming east southeast after midnight.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 92. Heat index values as high as 101. East southeast wind 5 to 10 mph becoming south in the afternoon.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Southeast wind 5 to 10 mph.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. South southwest wind 5 to 10 mph becoming west northwest in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 70. North wind around 5 mph.
Tuesday
Sunny, with a high near 90. North northwest wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 68. North northeast wind around 5 mph.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 69.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 70.
Friday
Mostly sunny, with a high near 91.
Click Map For Forecast
Point Forecast:
Denison TX
 33.75°N 96.57°W (Elev. 748 ft)
3:25 pm CDT Aug 17, 2018
6pm CDT Aug 17, 2018-6pm CDT Aug 24, 2018
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database