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

Hazardous Weather Conditions

Current conditions at

Pittsfield, Pittsfield Penstone Municipal Airport (KPPQ)

Lat: 39.64°NLon: 90.78°WElev: 709ft.

Thunderstorm in Vicinity

56°F

13°C

Humidity 82%
Wind Speed NE 8 mph
Barometer 29.88 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 15 May 3:35 am CDT
Extended Forecast for

Griggsville IL

  • Overnight

    Overnight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 56. Southeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    Low: 56 °F

    Showers

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 82. South wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely then
    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 65. South wind around 10 mph, with gusts as high as 21 mph.

    Low: 65 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 83. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 64. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 60%.

    High: 88 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 56. Southeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Friday
Showers and thunderstorms likely, mainly before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 82. South wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 65. South wind around 10 mph, with gusts as high as 21 mph.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 83. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 64. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 69.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Wednesday
Partly sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Griggsville IL
 39.72°N 90.73°W (Elev. 653 ft)
Last Update:
1:26 am CDT May 15, 2026
Forecast Valid:
3am CDT May 15, 2026-6pm CDT May 21, 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