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.

Overcast

13°F

-11°C

Humidity 66%
Wind Speed W 16 G 21 mph
Barometer 30.26 in
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill-3°F (-19°C)
Last update 17 Jan 10:35 pm CST
Extended Forecast for

Griggsville IL

  • Tonight

    Tonight: A chance of flurries before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 10. West wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 10 °F

    Chance
    Flurries

  • Sunday

    Sunday: A chance of flurries before 10am, then a chance of snow, mainly between 10am and 5pm. Mostly cloudy, with a high near 30. Southwest wind 7 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 30 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A chance of flurries before 9pm. Partly cloudy, with a low around 6. Wind chill values as low as -10. Blustery, with a northwest wind 17 to 22 mph, with gusts as high as 33 mph.

    Low: 6 °F

    Chance
    Flurries and
    Blustery

  • M.L.King Day

    M.L.King Day: Sunny and cold, with a high near 17. Wind chill values as low as -10. Northwest wind 8 to 17 mph, with gusts as high as 29 mph.

    High: 17 °F

    Cold

  • Monday Night

    Monday Night: Partly cloudy, with a low around 9. West wind around 6 mph becoming southwest after midnight.

    Low: 9 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 18 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of flurries before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 10. West wind 7 to 11 mph, with gusts as high as 22 mph.
Sunday
A chance of flurries before 10am, then a chance of snow, mainly between 10am and 5pm. Mostly cloudy, with a high near 30. Southwest wind 7 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Sunday Night
A chance of flurries before 9pm. Partly cloudy, with a low around 6. Wind chill values as low as -10. Blustery, with a northwest wind 17 to 22 mph, with gusts as high as 33 mph.
M.L.King Day
Sunny and cold, with a high near 17. Wind chill values as low as -10. Northwest wind 8 to 17 mph, with gusts as high as 29 mph.
Monday Night
Partly cloudy, with a low around 9. West wind around 6 mph becoming southwest after midnight.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Partly cloudy, with a low around 18.
Thursday
Sunny, with a high near 34.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Partly sunny, with a high near 38.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 14.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 24.
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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:
9:36 pm CST Jan 17, 2026
Forecast Valid:
10pm CST Jan 17, 2026-6pm CST Jan 24, 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