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

49°F

9°C

Humidity 69%
Wind Speed S 9 mph
Barometer 29.94 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 7 Jan 10:35 am CST
Extended Forecast for

Griggsville IL

  • Today

    Today: Sunny, with a high near 61. South wind 6 to 9 mph.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 44. South wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 44 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain, mainly after 10am. High near 61. South wind 10 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.

    High: 61 °F

    Rain Likely
    then Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 45. South wind 9 to 14 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    Low: 45 °F

    Rain Likely
    then Slight
    Chance Rain

  • Friday

    Friday: Mostly cloudy, with a high near 51. West wind 6 to 9 mph becoming north in the afternoon.

    High: 51 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain and snow before noon, then a chance of snow. Partly sunny, with a high near 41. Chance of precipitation is 30%.

    High: 41 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 61. South wind 6 to 9 mph.
Tonight
Increasing clouds, with a low around 44. South wind 8 to 10 mph, with gusts as high as 21 mph.
Thursday
Rain, mainly after 10am. High near 61. South wind 10 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.
Thursday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 45. South wind 9 to 14 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Friday
Mostly cloudy, with a high near 51. West wind 6 to 9 mph becoming north in the afternoon.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 35.
Saturday
A chance of rain and snow before noon, then a chance of snow. Partly sunny, with a high near 41. Chance of precipitation is 30%.
Saturday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 32.
Sunday Night
Mostly clear, with a low around 21.
Monday
Sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 47.
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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:
8:26 am CST Jan 7, 2026
Forecast Valid:
10am CST Jan 7, 2026-6pm CST Jan 13, 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