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

Heavy Rainfall and Flooding in the Southwest and Along the East Coast

A multi-day heavy rainfall event is set to begin across New Mexico into west Texas Tuesday through Wednesday. Flash flooding and debris flows in the vicinity of burn scars will also be possible. A strong coastal low will develop offshore of the Mid-Atlantic coast midweek, bringing heavy rainfall, strong winds and coastal flooding to much of the East Coast through Friday. Read More >

Current conditions at

Guymon / Guymon Municipal Airport (KGUY)

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

Fair

68°F

20°C

Humidity 73%
Wind Speed E 12 mph
Barometer 30.15 in (1017.5 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 21 Sep 9:53 pm CDT
Extended Forecast for

Guymon OK

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 58. East southeast wind around 5 mph.

    Low: 58 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 10am. Mostly sunny, with a high near 80. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 80 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 59. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 4pm. Partly sunny, with a high near 80. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 59. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    Low: 59 °F

    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 1pm. High near 79. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    High: 79 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. South wind 5 to 10 mph. Chance of precipitation is 70%.

    Low: 58 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. South southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 59. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 10 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 58. East southeast wind around 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms before 10am. Mostly sunny, with a high near 80. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 59. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Showers likely, with thunderstorms also possible after 4pm. Partly sunny, with a high near 80. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 59. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Thursday
Showers, with thunderstorms also possible after 1pm. High near 79. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. South wind 5 to 10 mph. Chance of precipitation is 70%.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. South southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 59. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 87.
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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:
7:45 pm CDT Sep 21, 2026
Forecast Valid:
10pm CDT Sep 21, 2026-6pm CDT Sep 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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