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

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Hazardous Weather Conditions

Current conditions at

Guymon / Guymon Municipal Airport (KGUY)

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

Fair

102°F

39°C

Humidity 19%
Wind Speed W 18 G 29 mph
Barometer 29.83 in (1003.8 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 13 Aug 1:53 pm CDT
Extended Forecast for

Guymon OK

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 105. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 105 °F

    Hot

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 70. South wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 70 °F

    Chance
    T-storms

  • Friday

    Friday: Mostly sunny and hot, with a high near 100. West wind 5 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 71. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 100. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 100 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 66. South wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. North northwest wind around 5 mph becoming east in the afternoon.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East wind around 5 mph becoming north in the evening.

    Low: 64 °F

    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 94. North wind around 5 mph becoming south southeast in the afternoon. Chance of precipitation is 20%.

    High: 94 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 105. South southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 70. South wind 10 to 15 mph, with gusts as high as 30 mph.
Friday
Mostly sunny and hot, with a high near 100. West wind 5 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 71. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 100. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 66. South wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. North northwest wind around 5 mph becoming east in the afternoon.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East wind around 5 mph becoming north in the evening.
Monday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 94. North wind around 5 mph becoming south southeast in the afternoon. Chance of precipitation is 20%.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63.
Tuesday
Sunny and hot, with a high near 100.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny and hot, with a high near 100.
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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:
2:05 pm CDT Aug 13, 2026
Forecast Valid:
2pm CDT Aug 13, 2026-6pm CDT Aug 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation