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

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Fair

48°F

9°C

Humidity 39%
Wind Speed NW 6 G 17 mph
Barometer 29.77 in
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 25 Feb 1:15 pm CST
Extended Forecast for

Griggsville IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 48. Northwest wind around 5 mph becoming calm.

    High: 48 °F

    Partly Sunny

  • Tonight

    Tonight: Rain and snow likely, mainly before 2am. Mostly cloudy, with a low around 29. Calm wind becoming northeast around 6 mph in the evening. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 29 °F

    Rain Likely
    then Chance
    Rain/Snow

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 53. South wind around 6 mph becoming light and variable in the afternoon.

    High: 53 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Clear, with a low around 35. Southwest wind 3 to 6 mph.

    Low: 35 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 69. Southwest wind 6 to 15 mph, with gusts as high as 24 mph.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain. Mostly sunny, with a high near 54.

    High: 54 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of snow before noon, then a chance of rain and snow. Cloudy, with a high near 36. Chance of precipitation is 50%.

    High: 36 °F

    Chance Snow
    then Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Partly sunny, with a high near 48. Northwest wind around 5 mph becoming calm.
Tonight
Rain and snow likely, mainly before 2am. Mostly cloudy, with a low around 29. Calm wind becoming northeast around 6 mph in the evening. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 53. South wind around 6 mph becoming light and variable in the afternoon.
Thursday Night
Clear, with a low around 35. Southwest wind 3 to 6 mph.
Friday
Sunny, with a high near 69. Southwest wind 6 to 15 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 35.
Saturday
A 20 percent chance of rain. Mostly sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
A chance of snow before noon, then a chance of rain and snow. Cloudy, with a high near 36. Chance of precipitation is 50%.
Sunday Night
Rain and snow likely. Cloudy, with a low around 23. Chance of precipitation is 70%.
Monday
A slight chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 20%.
Monday Night
A 40 percent chance of rain. Cloudy, with a low around 23.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Griggsville IL
 39.72°N 90.73°W (Elev. 653 ft)
Last Update:
12:26 pm CST Feb 25, 2026
Forecast Valid:
1pm CST Feb 25, 2026-6pm CST Mar 3, 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