Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Current conditions at

Hannibal Regional Airport (KHAE)

Lat: 39.73°NLon: 91.44°WElev: 770ft.

Fair

81°F

27°C

Humidity 58%
Wind Speed SE 6 mph
Barometer 29.97 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 30 Aug 11:15 pm CDT
Extended Forecast for

Clarksville MO

Heat Advisory August 31, 12:00pm until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Mostly clear, with a low around 72. Calm wind becoming south around 6 mph after midnight.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 98. Heat index values as high as 104. Southwest wind 5 to 7 mph.

    High: 98 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. Light south wind.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 100. Heat index values as high as 108. South wind 3 to 5 mph.

    High: 100 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 79. Light south wind.

    Low: 79 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 72. Calm wind becoming south around 6 mph after midnight.
Monday
Sunny and hot, with a high near 98. Heat index values as high as 104. Southwest wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 76. Light south wind.
Tuesday
Sunny and hot, with a high near 100. Heat index values as high as 108. South wind 3 to 5 mph.
Tuesday Night
Clear, with a low around 79. Light south wind.
Wednesday
Sunny and hot, with a high near 99.
Wednesday Night
Mostly clear, with a low around 79.
Thursday
Mostly sunny and hot, with a high near 97.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 76.
Friday
A slight chance of showers, with thunderstorms also possible after 1pm. Sunny, with a high near 95. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 73.
Saturday
A 20 percent chance of showers. Sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Clarksville MO
 39.37°N 90.91°W (Elev. 551 ft)
11:30 pm CDT Aug 30, 2026
11pm CDT Aug 30, 2026-6pm CDT Sep 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database