National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

47°F

8°C

Humidity 87%
Wind Speed Calm
Barometer 30.42 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 18 Oct 12:55 am CDT
Extended Forecast for

3 Miles WNW Denison TX

  • Overnight

    Overnight: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 70. Southeast wind around 5 mph.

    High: 70 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48. Southeast wind around 5 mph.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74. Southeast wind around 5 mph.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. East southeast wind around 5 mph becoming calm.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76. East southeast wind around 5 mph.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 54. East wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. Calm wind becoming south around 5 mph.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 58. Calm wind.

    Low: 58 °F

    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 45. Calm wind.
Sunday
Sunny, with a high near 70. Southeast wind around 5 mph.
Sunday Night
Mostly clear, with a low around 48. Southeast wind around 5 mph.
Monday
Sunny, with a high near 74. Southeast wind around 5 mph.
Monday Night
Mostly clear, with a low around 51. East southeast wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 76. East southeast wind around 5 mph.
Tuesday Night
Clear, with a low around 54. East wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 81. Calm wind becoming south around 5 mph.
Wednesday Night
Clear, with a low around 58. Calm wind.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 61.
Friday
Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Denison TX
 33.78°N 96.6°W (Elev. 702 ft)
Last Update:
10:41 pm CDT Oct 17, 2026
Forecast Valid:
1am CDT Oct 18, 2026-6pm CDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

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