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

40°F

4°C

Humidity 73%
Wind Speed E 10 mph
Barometer 30.20 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 12 Feb 5:55 pm CST
Extended Forecast for

4 Miles S Chapin IL

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Southeast wind around 7 mph.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 58. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 35. South wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Rain likely after noon. Cloudy, with a high near 52. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 52 °F

    Cloudy then
    Rain Likely

  • Saturday Night

    Saturday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 40. East southeast wind around 7 mph becoming northeast after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain Likely
    then Chance
    Rain

  • Sunday

    Sunday: Sunny, with a high near 58. North wind 5 to 7 mph.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. Calm wind becoming south around 5 mph after midnight.

    Low: 35 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 31. Southeast wind around 7 mph.
Friday
Sunny, with a high near 58. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
Increasing clouds, with a low around 35. South wind around 5 mph becoming calm in the evening.
Saturday
Rain likely after noon. Cloudy, with a high near 52. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 40. East southeast wind around 7 mph becoming northeast after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Sunny, with a high near 58. North wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 35. Calm wind becoming south around 5 mph after midnight.
Washington's Birthday
Partly sunny, with a high near 60.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Mostly cloudy, with a high near 64.
Tuesday Night
Mostly cloudy, with a low around 53.
Wednesday
Partly sunny, with a high near 67.
Wednesday Night
Mostly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Chapin IL
 39.71°N 90.41°W (Elev. 584 ft)
Last Update:
5:37 pm CST Feb 12, 2026
Forecast Valid:
6pm CST Feb 12, 2026-6pm CST Feb 19, 2026
 
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Additional Resources

Radar & Satellite Image

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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