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

Pittsfield, Pittsfield Penstone Municipal Airport (KPPQ)

Lat: 39.64°NLon: 90.78°WElev: 709ft.

Overcast

23°F

-5°C

Humidity 59%
Wind Speed W 14 G 21 mph
Barometer 30.12 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 16 Mar 8:15 pm CDT
Extended Forecast for

Griggsville IL

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 11. Northwest wind 10 to 15 mph, with gusts as high as 26 mph.

    Low: 11 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Increasing clouds, with a high near 32. Northwest wind around 8 mph becoming south in the afternoon.

    High: 32 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 27. Southeast wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Snow Likely
    then Chance
    Snow

  • Wednesday

    Wednesday: Sunny, with a high near 59. South wind 7 to 10 mph becoming west in the afternoon.

    High: 59 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 40. Calm wind becoming south around 6 mph after midnight.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 11. Northwest wind 10 to 15 mph, with gusts as high as 26 mph.
Tuesday
Increasing clouds, with a high near 32. Northwest wind around 8 mph becoming south in the afternoon.
Tuesday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 27. Southeast wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday
Sunny, with a high near 59. South wind 7 to 10 mph becoming west in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 40. Calm wind becoming south around 6 mph after midnight.
Thursday
Sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 76.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 68.
Sunday Night
Mostly cloudy, with a low around 36.
Monday
Partly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Griggsville IL
 39.72°N 90.73°W (Elev. 653 ft)
Last Update:
5:31 pm CDT Mar 16, 2026
Forecast Valid:
8pm CDT Mar 16, 2026-6pm CDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation