September is National Preparedness Month. Join us each week as we share important safety and preparedness information through our social media accounts. Check out our latest weather safety graphics here!

Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

86°F

30°C

Humidity 55%
Wind Speed S 9 mph
Barometer 29.92 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 7 Sep 12:15 am CDT
Extended Forecast for

Howe TX

Heat Advisory September 7, 12:26am until September 7, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 7, 12:26am until September 7, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Overnight

    Low: 77 °F

    Clear

  • Labor Day

    Labor Day: A 20 percent chance of showers and thunderstorms after 4pm.  Sunny and hot, with a high near 99. Heat index values as high as 104. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 10 percent chance of showers and thunderstorms before 7pm.  Clear, with a low around 78. South southeast wind 5 to 10 mph.

    Low: 78 °F

    Slight Chance
    T-storms then
    Clear

  • Tuesday

    Tuesday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm.  Increasing clouds and hot, with a high near 99. Heat index values as high as 104. South southeast wind 5 to 10 mph.  Chance of precipitation is 20%.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 78. Southeast wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 98. South wind 5 to 10 mph.

    High: 98 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. South wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 96. South southwest wind around 5 mph becoming east northeast in the afternoon.

    High: 96 °F

    Mostly Sunny

Detailed Forecast

Overnight
Clear, with a low around 77. South southwest wind around 5 mph.
Labor Day
A 20 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 104. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Monday Night
A 10 percent chance of showers and thunderstorms before 7pm. Clear, with a low around 78. South southeast wind 5 to 10 mph.
Tuesday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Increasing clouds and hot, with a high near 99. Heat index values as high as 104. South southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 78. Southeast wind 5 to 10 mph.
Wednesday
Sunny, with a high near 98. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 77. South wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 96. South southwest wind around 5 mph becoming east northeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 77. Southeast wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 97.
Friday Night
Mostly clear, with a low around 76.
Saturday
Sunny, with a high near 97.
Saturday Night
Mostly clear, with a low around 75.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Howe TX
 33.5°N 96.63°W (Elev. 814 ft)
11:51 pm CDT Sep 6, 2026
12am CDT Sep 7, 2026-6pm CDT Sep 13, 2026
 
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