Current conditions at

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Fair

74°F

23°C

Humidity 100%
Wind Speed S 5 mph
Barometer 30.08 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Last update 15 Aug 10:35 am CDT
Extended Forecast for

4 Miles S Chapin IL

  • Today

    Today: A 20 percent chance of showers and thunderstorms before 11am.  Partly sunny, with a high near 90. Heat index values as high as 102. South southwest wind 6 to 8 mph.

    High: 90 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 2am.  Mostly cloudy, with a low around 74. Calm wind becoming northwest 5 to 7 mph after midnight.

    Low: 74 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Partly sunny, with a high near 88. West northwest wind 5 to 8 mph.

    High: 88 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68. Northwest wind 5 to 9 mph becoming light north northwest. Winds could gust as high as 15 mph.

    Low: 68 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 84. North wind 3 to 5 mph.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 71.

    Low: 71 °F

    Mostly Clear
    then Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms before 11am. Partly sunny, with a high near 90. Heat index values as high as 102. South southwest wind 6 to 8 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 74. Calm wind becoming northwest 5 to 7 mph after midnight.
Sunday
Partly sunny, with a high near 88. West northwest wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 68. Northwest wind 5 to 9 mph becoming light north northwest. Winds could gust as high as 15 mph.
Monday
Mostly sunny, with a high near 84. North wind 3 to 5 mph.
Monday Night
Mostly clear, with a low around 64. Calm wind.
Tuesday
Sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.
Wednesday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Chapin IL
 39.71°N 90.41°W (Elev. 584 ft)
10:36 am CDT Aug 15, 2026
10am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database