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 >

Current conditions at

Stillwater, Stillwater Regional Airport (KSWO)

Lat: 36.16°NLon: 97.09°WElev: 984ft.

Fair

85°F

29°C

Humidity 51%
Wind Speed NE 5 mph
Barometer 29.86 in (1009.5 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 19 Aug 8:53 pm CDT
Extended Forecast for

Mehan OK

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Northeast wind 6 to 8 mph.

    Low: 73 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 10 percent chance of showers before 10am. Partly sunny, then gradually becoming sunny and hot, with a high near 100. Northeast wind 5 to 8 mph.

    High: 100 °F

    Slight Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. East northeast wind 3 to 8 mph.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny and hot, with a high near 103. Calm wind becoming southeast around 6 mph in the morning.

    High: 103 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. East southeast wind 3 to 6 mph.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 104.

    High: 104 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 103.

    High: 103 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

Detailed Forecast

Tonight
A 10 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. Northeast wind 6 to 8 mph.
Thursday
A 10 percent chance of showers before 10am. Partly sunny, then gradually becoming sunny and hot, with a high near 100. Northeast wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 73. East northeast wind 3 to 8 mph.
Friday
Mostly sunny and hot, with a high near 103. Calm wind becoming southeast around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 75. East southeast wind 3 to 6 mph.
Saturday
Sunny and hot, with a high near 104.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Mostly sunny and hot, with a high near 103.
Sunday Night
Mostly clear, with a low around 78.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 105.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Mostly sunny and hot, with a high near 104.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Wednesday
Mostly sunny and hot, with a high near 102.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mehan OK
 36.04°N 96.95°W
Last Update:
8:42 pm CDT Aug 19, 2026
Forecast Valid:
9pm CDT Aug 19, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation