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

25°F

-4°C

Humidity 78%
Wind Speed N 12 mph
Barometer 30.07 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 21 Feb 12:35 am CST
Extended Forecast for

Griggsville IL

  • Overnight

    Overnight: Partly cloudy, with a low around 22. Northwest wind around 6 mph.

    Low: 22 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of flurries between 9am and 10am. Mostly sunny, with a high near 37. Northwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 37 °F

    Chance
    Flurries

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 17. Northwest wind 10 to 15 mph, with gusts as high as 26 mph.

    Low: 17 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 30. Blustery, with a northwest wind 16 to 20 mph, with gusts as high as 30 mph.

    High: 30 °F

    Mostly Sunny
    then Sunny
    and Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 13. Northwest wind 14 to 16 mph, with gusts as high as 28 mph.

    Low: 13 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 22. Northwest wind around 6 mph.
Saturday
A chance of flurries between 9am and 10am. Mostly sunny, with a high near 37. Northwest wind 6 to 11 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 17. Northwest wind 10 to 15 mph, with gusts as high as 26 mph.
Sunday
Mostly sunny, with a high near 30. Blustery, with a northwest wind 16 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 13. Northwest wind 14 to 16 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Partly sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 57.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 20%.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 49.
Thursday Night
Mostly clear, with a low around 30.
Friday
Sunny, with a high near 61.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Griggsville IL
 39.72°N 90.73°W (Elev. 653 ft)
Last Update:
12:26 am CST Feb 21, 2026
Forecast Valid:
1am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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