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

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Current conditions at

Guymon / Guymon Municipal Airport (KGUY)

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

Fair

84°F

29°C

Humidity 41%
Wind Speed E 14 mph
Barometer 30.01 in (1011.2 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 19 Aug 9:53 pm CDT
Extended Forecast for

13 Miles NNW Guymon / Guymon Municipal Airport OK

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 64. North wind 5 to 10 mph.

    Low: 64 °F

    Chance
    T-storms

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 96. North northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 96 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. East southeast wind 5 to 10 mph.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 102. South wind 5 to 10 mph.

    High: 102 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 67. South southeast wind around 10 mph becoming southwest after midnight.

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 102. West southwest wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 102 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69. Southeast wind 10 to 15 mph.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 104. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 104 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 64. North wind 5 to 10 mph.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 96. North northeast wind 5 to 10 mph becoming southeast in the afternoon.
Thursday Night
Mostly clear, with a low around 65. East southeast wind 5 to 10 mph.
Friday
Sunny and hot, with a high near 102. South wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 67. South southeast wind around 10 mph becoming southwest after midnight.
Saturday
Sunny and hot, with a high near 102. West southwest wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 69. Southeast wind 10 to 15 mph.
Sunday
Mostly sunny and hot, with a high near 104. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 69. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 102.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 100.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Wednesday
Sunny and hot, with a high near 100.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NNW Guymon / Guymon Municipal Airport OK
 36.87°N 101.56°W (Elev. 3261 ft)
Last Update:
6:46 pm CDT Aug 19, 2026
Forecast Valid:
10pm CDT Aug 19, 2026-6pm CDT Aug 26, 2026
 
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Additional Resources

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Chance of Precipitation