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.

Mostly Cloudy

71°F

22°C

Humidity 57%
Wind Speed NW 15 G 22 mph
Barometer 29.99 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 14 Jun 1:15 pm CDT
Extended Forecast for

4 Miles S Chapin IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 73. Northwest wind around 16 mph, with gusts as high as 24 mph.

    High: 73 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. North northwest wind 5 to 10 mph becoming light northwest in the evening. Winds could gust as high as 16 mph.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. Light and variable wind becoming south southwest 5 to 7 mph in the evening. Winds could gust as high as 15 mph.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 79. Southwest wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57. West southwest wind 5 to 9 mph becoming calm. Winds could gust as high as 17 mph.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, then showers and thunderstorms likely after 1pm. Mostly sunny, with a high near 83. Breezy, with a south wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

    High: 83 °F

    Chance
    Showers then
    T-storms
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 65. Breezy. Chance of precipitation is 90%.

    Low: 65 °F

    Showers and
    Breezy

  • Thursday

    Thursday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 77.

    High: 77 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 73. Northwest wind around 16 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 52. North northwest wind 5 to 10 mph becoming light northwest in the evening. Winds could gust as high as 16 mph.
Monday
Sunny, with a high near 76. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 56. Light and variable wind becoming south southwest 5 to 7 mph in the evening. Winds could gust as high as 15 mph.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 79. Southwest wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Tuesday Night
Partly cloudy, with a low around 57. West southwest wind 5 to 9 mph becoming calm. Winds could gust as high as 17 mph.
Wednesday
A chance of showers, then showers and thunderstorms likely after 1pm. Mostly sunny, with a high near 83. Breezy, with a south wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Wednesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 65. Breezy. Chance of precipitation is 90%.
Thursday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 57.
Juneteenth
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 60.
Saturday
Mostly sunny, with a high near 83.
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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:
1:21 pm CDT Jun 14, 2026
Forecast Valid:
1pm CDT Jun 14, 2026-6pm CDT Jun 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation