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

Flash Flooding Continuing Along the Gulf Coast; Dry Thunderstorms in the West

Excessive rainfall continues to produce life-threatening, locally catastrophic flash flooding along the central Gulf Coast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts Oregon, California, and the Great Basin into the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Guymon / Guymon Municipal Airport (KGUY)

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

Mostly Cloudy

79°F

26°C

Humidity 50%
Wind Speed S 13 G 22 mph
Barometer 30.02 in (1012.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 19 Jun 2:53 pm CDT
Extended Forecast for

3 Miles WSW Optima OK

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 84. South wind around 15 mph, with gusts as high as 20 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 60. South southeast wind 5 to 15 mph.

    Low: 60 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 4pm. Some of the storms could be severe. Mostly sunny, with a high near 96. South wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 96 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Some of the storms could be severe. Mostly cloudy during the early evening, then gradual clearing, with a low around 67. South southeast wind 15 to 20 mph becoming west in the evening. Winds could gust as high as 30 mph.

    Low: 67 °F

    Severe
    Thunderstorms

  • Sunday

    Sunday: Sunny and hot, with a high near 99. West wind 5 to 15 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly clear, with a low around 61. Northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 86. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 86 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 58. East wind 5 to 10 mph.

    Low: 58 °F

    Mostly Clear
    then Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. East southeast wind 5 to 10 mph.

    High: 86 °F

    Chance
    Showers

Detailed Forecast

Juneteenth
Mostly sunny, with a high near 84. South wind around 15 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 60. South southeast wind 5 to 15 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 4pm. Some of the storms could be severe. Mostly sunny, with a high near 96. South wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Some of the storms could be severe. Mostly cloudy during the early evening, then gradual clearing, with a low around 67. South southeast wind 15 to 20 mph becoming west in the evening. Winds could gust as high as 30 mph.
Sunday
Sunny and hot, with a high near 99. West wind 5 to 15 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly clear, with a low around 61. Northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 86. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 58. East wind 5 to 10 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 86. East southeast wind 5 to 10 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Optima OK
 36.74°N 101.39°W (Elev. 2953 ft)
Last Update:
2:45 pm CDT Jun 19, 2026
Forecast Valid:
3pm CDT Jun 19, 2026-6pm CDT Jun 25, 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