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
High: 90 °F
Slight Chance
T-storms then
Partly SunnyTonight
Low: 74 °F
Partly Cloudy
then Chance
T-stormsSunday

High: 88 °F
Partly Sunny
Sunday Night

Low: 68 °F
Partly Cloudy
Monday

High: 84 °F
Mostly Sunny
Monday Night

Low: 64 °F
Mostly Clear
Tuesday

High: 86 °F
Sunny
Tuesday Night
Low: 71 °F
Mostly Clear
then Chance
T-stormsWednesday

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles S Chapin IL
39.71°N 90.41°W (Elev. 584 ft)
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


