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.

Partly Cloudy

74°F

23°C

Humidity 90%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 20 Sep 9:55 am CDT
Extended Forecast for

Pittsfield IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly cloudy, with a high near 84. Northwest wind around 6 mph.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 64. Northeast wind 6 to 9 mph. Chance of precipitation is 60%.

    Low: 64 °F

    Chance
    T-storms then
    Heavy Rain

  • Monday

    Monday: A 50 percent chance of showers, mainly before 10am. Cloudy, with a high near 71. Northeast wind around 8 mph.

    High: 71 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 58. Northeast wind 7 to 9 mph.

    Low: 58 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 67. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 67 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly cloudy, with a high near 84. Northwest wind around 6 mph.
Tonight
A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 64. Northeast wind 6 to 9 mph. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers, mainly before 10am. Cloudy, with a high near 71. Northeast wind around 8 mph.
Monday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 58. Northeast wind 7 to 9 mph.
Tuesday
Mostly cloudy, with a high near 67. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 71.
Thursday Night
Mostly cloudy, with a low around 56.
Friday
Partly sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Partly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Pittsfield IL
 39.61°N 90.82°W (Elev. 719 ft)
Last Update:
5:36 am CDT Sep 20, 2026
Forecast Valid:
10am CDT Sep 20, 2026-6pm CDT Sep 26, 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