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

Muskogee-Davis Regional Airport (KMKO)

Lat: 35.66°NLon: 95.36°WElev: 607ft.

Fair

77°F

25°C

Humidity 77%
Wind Speed Calm
Barometer 29.90 in (1011.3 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Aug 2:53 am CDT
Extended Forecast for

7 Miles ESE Onapa OK

Heat Advisory August 20, 01:00pm until August 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: A 20 percent chance of showers after 4am.  Partly cloudy, with a low around 79. Calm wind.

    Low: 79 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers before 7am, then a slight chance of showers and thunderstorms after 4pm.  Mostly sunny and hot, with a high near 102. Heat index values as high as 107. Calm wind becoming southwest around 5 mph.  Chance of precipitation is 20%.

    High: 102 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 10 percent chance of showers and thunderstorms before 7pm.  Mostly clear, with a low around 75. Calm wind becoming northeast around 5 mph.

    Low: 75 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 103. Heat index values as high as 108. Calm wind becoming southeast around 5 mph.

    High: 103 °F

    Hot

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 77. East wind around 5 mph becoming calm.

    Low: 77 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 102. Calm wind becoming south around 5 mph.

    High: 102 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. East wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 99. Southeast wind around 5 mph.

    High: 99 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 78. Southeast wind around 5 mph.

    Low: 78 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers after 4am. Partly cloudy, with a low around 79. Calm wind.
Thursday
A slight chance of showers before 7am, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 102. Heat index values as high as 107. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.
Thursday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 75. Calm wind becoming northeast around 5 mph.
Friday
Sunny and hot, with a high near 103. Heat index values as high as 108. Calm wind becoming southeast around 5 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. East wind around 5 mph becoming calm.
Saturday
Mostly sunny and hot, with a high near 102. Calm wind becoming south around 5 mph.
Saturday Night
Mostly clear, with a low around 76. East wind around 5 mph.
Sunday
Mostly sunny, with a high near 99. Southeast wind around 5 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 78. Southeast wind around 5 mph.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny and hot, with a high near 101. South wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 78. South wind around 10 mph.
Tuesday
Mostly sunny and hot, with a high near 102. Southwest wind 5 to 10 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 77. South wind around 5 mph.
Wednesday
Mostly sunny, with a high near 99. South wind around 5 mph becoming west in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ESE Onapa OK
 35.34°N 95.44°W
2:50 am CDT Aug 20, 2026
3am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

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