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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Pittsfield, Pittsfield Penstone Municipal Airport (KPPQ)

Lat: 39.64°NLon: 90.78°WElev: 709ft.

Fair

90°F

32°C

Humidity 59%
Wind Speed NE 8 mph
Barometer 30.06 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 18 Sep 4:35 pm CDT
Extended Forecast for

Clarksville MO

  • This Afternoon

    This Afternoon: Sunny, with a high near 93. Heat index values as high as 105. Calm wind.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 72. Light east wind.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny and hot, with a high near 97. Heat index values as high as 101. Calm wind becoming west around 6 mph in the morning.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms between 3am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.

    Low: 70 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 88 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.

    High: 74 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 69.

    High: 69 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 93. Heat index values as high as 105. Calm wind.
Tonight
Mostly clear, with a low around 72. Light east wind.
Saturday
Partly sunny and hot, with a high near 97. Heat index values as high as 101. Calm wind becoming west around 6 mph in the morning.
Saturday Night
A slight chance of showers and thunderstorms between 3am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
Monday Night
A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 57.
Tuesday
Mostly cloudy, with a high near 69.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Partly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clarksville MO
 39.37°N 90.91°W (Elev. 551 ft)
Last Update:
2:01 pm CDT Sep 18, 2026
Forecast Valid:
4pm CDT Sep 18, 2026-6pm CDT Sep 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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