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.

Mostly Cloudy

27°F

-3°C

Humidity 67%
Wind Speed NW 12 mph
Barometer 30.20 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 21 Feb 9:35 am CST
Extended Forecast for

Griggsville IL

  • Today

    Today: A chance of flurries before 10am. Partly sunny, with a high near 37. Northwest wind 8 to 14 mph.

    High: 37 °F

    Chance
    Flurries

  • Tonight

    Tonight: Partly cloudy, with a low around 17. Northwest wind 10 to 16 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. Northwest wind 6 to 14 mph, with gusts as high as 24 mph.

    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

  • Wednesday

    Wednesday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

Detailed Forecast

Today
A chance of flurries before 10am. Partly sunny, with a high near 37. Northwest wind 8 to 14 mph.
Tonight
Partly cloudy, with a low around 17. Northwest wind 10 to 16 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. Northwest wind 6 to 14 mph, with gusts as high as 24 mph.
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 before midnight, then 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.
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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:
8:31 am CST Feb 21, 2026
Forecast Valid:
9am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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