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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Hazardous Weather Conditions

Current conditions at

Pittsfield, Pittsfield Penstone Municipal Airport (KPPQ)

Lat: 39.64°NLon: 90.78°WElev: 709ft.

Fair

87°F

31°C

Humidity 59%
Wind Speed SW 5 mph
Barometer 30.16 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 17 Sep 7:35 pm CDT
Extended Forecast for

Whiteside MO

Heat Advisory September 17, 07:48pm until September 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 17, 07:48pm until September 18, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 72 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 93. Heat index values as high as 102. Northeast wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 93 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. East wind 5 to 7 mph.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 94. Southwest wind 5 to 7 mph.

    High: 94 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 71. Light and variable wind. Chance of precipitation is 20%.

    Low: 71 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers

  • 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 66. Chance of precipitation is 60%.

    Low: 66 °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 77. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 72. Northwest wind around 5 mph becoming light and variable.
Friday
Mostly sunny, with a high near 93. Heat index values as high as 102. Northeast wind 5 to 7 mph becoming light and variable in the afternoon.
Friday Night
Mostly clear, with a low around 72. East wind 5 to 7 mph.
Saturday
Partly sunny, with a high near 94. Southwest wind 5 to 7 mph.
Saturday Night
A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 71. Light and variable wind. Chance of precipitation is 20%.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Monday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61.
Tuesday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 72.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Whiteside MO
 39.17°N 91.01°W (Elev. 712 ft)
Last Update:
6:06 pm CDT Sep 17, 2026
Forecast Valid:
7pm CDT Sep 17, 2026-6pm CDT Sep 24, 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