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

Areas of Excessive Rainfall and Severe Thunderstorms; Typhoon Watch for Guam/CNMI

Heavy to excessive rainfall will continue today from the Texas Big Bend region into southern Oklahoma. Locally considerable flash and urban flooding is possible, and river flooding will continue in central Oklahoma. Scattered severe thunderstorms are possible in parts of the Mid-Atlantic Friday. A Typhoon Watch has been issued for Guam and CNMI. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Mostly Cloudy

82°F

28°C

Humidity 70%
Wind Speed S 7 mph
Barometer 30.06 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 15 Oct 11:50 am CDT
Extended Forecast for

Sherman TXSimilar City Names

  • This Afternoon

    This Afternoon: A slight chance of showers before 1pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 87. South southwest wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 87 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms. Increasing clouds, with a low around 55. North wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a steady temperature around 59. Breezy, with a north wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 59 °F

    Gradual
    Clearing and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 63. North wind 5 to 10 mph.

    High: 63 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 43. Calm wind.

    Low: 43 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68. Calm wind becoming east southeast around 5 mph.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74. Calm wind becoming south southeast around 5 mph.

    High: 74 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers before 1pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 87. South southwest wind 5 to 10 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms. Increasing clouds, with a low around 55. North wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Cloudy through mid morning, then gradual clearing, with a steady temperature around 59. Breezy, with a north wind 20 to 25 mph, with gusts as high as 35 mph.
Friday Night
Partly cloudy, with a low around 45. North wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 63. North wind 5 to 10 mph.
Saturday Night
Clear, with a low around 43. Calm wind.
Sunday
Sunny, with a high near 68. Calm wind becoming east southeast around 5 mph.
Sunday Night
Mostly clear, with a low around 48. Calm wind.
Monday
Sunny, with a high near 74. Calm wind becoming south southeast around 5 mph.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sherman TXSimilar City Names
 33.62°N 96.6°W (Elev. 699 ft)
Last Update:
8:21 am CDT Oct 15, 2026
Forecast Valid:
12pm CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
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Additional Resources

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