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

61°F

16°C

Humidity 41%
Wind Speed S 10 mph
Barometer 29.98 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 16 Feb 1:35 pm CST
Extended Forecast for

Griggsville IL

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 64. South wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 64 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. South wind around 8 mph.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 62. South wind 7 to 16 mph, with gusts as high as 26 mph.

    High: 62 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after midnight. Cloudy during the early evening, then gradual clearing, with a low around 53. Breezy, with a south wind 15 to 20 mph, with gusts as high as 31 mph.

    Low: 53 °F

    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 67. West wind 8 to 14 mph, with gusts as high as 26 mph.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain. Mostly sunny, with a high near 68.

    High: 68 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before midnight. Partly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny
    then

Detailed Forecast

Washington's Birthday
Sunny, with a high near 64. South wind 8 to 13 mph, with gusts as high as 23 mph.
Tonight
Mostly cloudy, with a low around 43. South wind around 8 mph.
Tuesday
Mostly cloudy, with a high near 62. South wind 7 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
A 30 percent chance of rain, mainly after midnight. Cloudy during the early evening, then gradual clearing, with a low around 53. Breezy, with a south wind 15 to 20 mph, with gusts as high as 31 mph.
Wednesday
Sunny, with a high near 67. West wind 8 to 14 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
A 40 percent chance of rain. Mostly sunny, with a high near 68.
Thursday Night
A 20 percent chance of rain before midnight. Partly cloudy, with a low around 35.
Friday
Partly sunny, with a high near 46.
Friday Night
Partly cloudy, with a low around 27.
Saturday
A slight chance of rain and snow. Mostly sunny, with a high near 44. Chance of precipitation is 20%.
Saturday Night
A slight chance of rain and snow. Partly cloudy, with a low around 25. Chance of precipitation is 20%.
Sunday
High near 45.
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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:
1:31 pm CST Feb 16, 2026
Forecast Valid:
1pm CST Feb 16, 2026-6pm CST Feb 22, 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