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

Stillwater, Stillwater Regional Airport (KSWO)

Lat: 36.16°NLon: 97.09°WElev: 984ft.

Overcast

59°F

15°C

Humidity 90%
Wind Speed S 12 mph
Barometer 30.09 in (1018.3 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 21 Apr 10:53 pm CDT
Extended Forecast for

6 Miles WNW Sumner OK

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. South wind 10 to 14 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 74. South wind 9 to 18 mph, with gusts as high as 26 mph.

    High: 74 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 64. South wind 17 to 20 mph, with gusts as high as 25 mph.

    Low: 64 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Cloudy through mid morning, then gradual clearing, with a high near 83. Windy, with a south wind 21 to 26 mph, with gusts as high as 40 mph.

    High: 83 °F

    Windy. Mostly
    Cloudy then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 60. South wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 50%.

    Low: 60 °F

    Chance
    T-storms

  • Friday

    Friday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. Chance of precipitation is 30%.

    High: 79 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly cloudy, with a low around 57. South wind 10 to 14 mph, with gusts as high as 20 mph.
Wednesday
Mostly cloudy, with a high near 74. South wind 9 to 18 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly cloudy, with a low around 64. South wind 17 to 20 mph, with gusts as high as 25 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Cloudy through mid morning, then gradual clearing, with a high near 83. Windy, with a south wind 21 to 26 mph, with gusts as high as 40 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 60. South wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 50%.
Friday
Mostly sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 52.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. Chance of precipitation is 30%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 56.
Monday
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WNW Sumner OK
 36.33°N 97.23°W
Last Update:
1:46 pm CDT Apr 21, 2026
Forecast Valid:
11pm CDT Apr 21, 2026-6pm CDT Apr 28, 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