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

27°F

-3°C

Humidity 53%
Wind Speed NW 20 G 25 mph
Barometer 30.07 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 14 Jan 5:15 pm CST
Extended Forecast for

Griggsville IL

  • Tonight

    Tonight: Clear, with a low around 15. Northwest wind 7 to 14 mph, with gusts as high as 28 mph.

    Low: 15 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 32. Northwest wind 5 to 7 mph becoming south in the afternoon.

    High: 32 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 27. South wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 22 mph.

    Low: 27 °F

    Chance Snow
    then Slight
    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 41. West wind 13 to 17 mph, with gusts as high as 28 mph.

    High: 41 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 16. Northwest wind around 14 mph, with gusts as high as 24 mph.

    Low: 16 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 21.

    High: 21 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 15. Northwest wind 7 to 14 mph, with gusts as high as 28 mph.
Thursday
Increasing clouds, with a high near 32. Northwest wind 5 to 7 mph becoming south in the afternoon.
Thursday Night
A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 27. South wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 22 mph.
Friday
Partly sunny, with a high near 41. West wind 13 to 17 mph, with gusts as high as 28 mph.
Friday Night
A 30 percent chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 16. Northwest wind around 14 mph, with gusts as high as 24 mph.
Saturday
Partly sunny, with a high near 21.
Saturday Night
Partly cloudy, with a low around 5.
Sunday
Mostly sunny, with a high near 23.
Sunday Night
Mostly cloudy, with a low around 11.
M.L.King Day
Mostly sunny, with a high near 21.
Monday Night
Mostly clear, with a low around 7.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
Partly cloudy, with a low around 17.
Wednesday
Mostly sunny, with a high near 37.
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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:
4:51 pm CST Jan 14, 2026
Forecast Valid:
5pm CST Jan 14, 2026-6pm CST Jan 21, 2026
 
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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