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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Guymon / Guymon Municipal Airport (KGUY)

Lat: 36.68°NLon: 101.51°WElev: 3123ft.

Fair

78°F

26°C

Humidity 48%
Wind Speed SE 6 mph
Barometer 30.13 in (1015.8 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 27 Aug 9:53 pm CDT
Extended Forecast for

Guymon OK

  • Tonight

    Tonight: Partly cloudy, with a low around 65. Southeast wind 5 to 10 mph becoming southwest after midnight.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: Sunny and hot, with a high near 99. South wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 72. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 72 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 104. South southwest wind around 20 mph, with gusts as high as 35 mph.

    High: 104 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 75. South wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 75 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 104. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 104 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72. South wind around 15 mph, with gusts as high as 30 mph.

    Low: 72 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 102. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 102 °F

    Hot

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 70. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 65. Southeast wind 5 to 10 mph becoming southwest after midnight.
Friday
Sunny and hot, with a high near 99. South wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Partly cloudy, with a low around 72. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday
Sunny and hot, with a high near 104. South southwest wind around 20 mph, with gusts as high as 35 mph.
Saturday Night
Partly cloudy, with a low around 75. South wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny and hot, with a high near 104. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 72. South wind around 15 mph, with gusts as high as 30 mph.
Monday
Sunny and hot, with a high near 102. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 70. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny and hot, with a high near 101.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
Sunny and hot, with a high near 103.
Wednesday Night
Mostly clear, with a low around 70.
Thursday
Sunny and hot, with a high near 102.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Guymon OK
 36.69°N 101.5°W (Elev. 3051 ft)
Last Update:
6:46 pm CDT Aug 27, 2026
Forecast Valid:
10pm CDT Aug 27, 2026-6pm CDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation