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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Griggsville IL

  • Overnight

    Overnight: A chance of flurries after 3am. Cloudy, with a low around 28. South wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 28 °F

    Chance
    Flurries

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 38. West wind 10 to 15 mph, with gusts as high as 24 mph.

    High: 38 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 19. Southwest wind 6 to 15 mph becoming northwest after midnight. Winds could gust as high as 30 mph.

    Low: 19 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 32. Northwest wind 3 to 6 mph.

    High: 32 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2. Light northwest wind becoming north 10 to 15 mph in the evening. Winds could gust as high as 24 mph.

    Low: 2 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near 7.

    High: 7 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -2.

    Low: -2 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after noon. Cloudy and cold, with a high near 11.

    High: 11 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 4.

    Low: 4 °F

    Chance Snow

Detailed Forecast

Overnight
A chance of flurries after 3am. Cloudy, with a low around 28. South wind 11 to 14 mph, with gusts as high as 24 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 38. West wind 10 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly clear, with a low around 19. Southwest wind 6 to 15 mph becoming northwest after midnight. Winds could gust as high as 30 mph.
Thursday
Increasing clouds, with a high near 32. Northwest wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 2. Light northwest wind becoming north 10 to 15 mph in the evening. Winds could gust as high as 24 mph.
Friday
Partly sunny and cold, with a high near 7.
Friday Night
Mostly cloudy, with a low around -2.
Saturday
A 30 percent chance of snow, mainly after noon. Cloudy and cold, with a high near 11.
Saturday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 4.
Sunday
Mostly sunny and cold, with a high near 19.
Sunday Night
Partly cloudy, with a low around 3.
Monday
Mostly sunny, with a high near 23.
Monday Night
Mostly clear, with a low around 9.
Tuesday
Mostly sunny, with a high near 33.
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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:
11:16 pm CST Jan 20, 2026
Forecast Valid:
1am CST Jan 21, 2026-6pm CST Jan 27, 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