Hazardous Weather Conditions
Current conditions at
Jacksonville Municipal Airport (KIJX)
Lat: 39.77°NLon: 90.24°WElev: 614ft.
Mostly Cloudy
92°F
33°C
| Humidity | 77% |
| Wind Speed | W 5 mph |
| Barometer | 29.91 in |
| Dewpoint | 83°F (28°C) |
| Visibility | 10.00 mi |
| Heat Index | 118°F (48°C) |
| Last update | 26 Jul 12:55 pm CDT |
Extended Forecast for
Chapin IL
Extreme Heat Warning until July 27, 09:00pm
NOW until 9:00pm Mon

Extreme Heat Warning
This Afternoon

High: 93 °F
Slight Chance
T-stormsTonight
Low: 76 °F
Slight Chance
T-storms then
Partly CloudyMonday

High: 96 °F
Hot
Monday Night

Low: 75 °F
Mostly Clear
Tuesday

High: 90 °F
Mostly Sunny
Tuesday Night

Low: 68 °F
Mostly Clear
Wednesday

High: 87 °F
Sunny
Wednesday Night

Low: 64 °F
Clear
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Heat index values as high as 109. West southwest wind around 7 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Calm wind becoming south around 5 mph after midnight.
Monday
Sunny and hot, with a high near 96. Heat index values as high as 110. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 75. Southwest wind around 8 mph becoming west northwest after midnight. Winds could gust as high as 15 mph.
Tuesday
Mostly sunny, with a high near 90. Northwest wind 6 to 9 mph becoming north northeast in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
Mostly clear, with a low around 68. Northeast wind 3 to 6 mph.
Wednesday
Sunny, with a high near 87. Calm wind becoming east northeast 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 64.
Thursday
Sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 66.
Friday
Partly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 66.
Saturday
Mostly sunny, with a high near 86.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Chapin IL
39.78°N 90.44°W (Elev. 630 ft)
39.78°N 90.44°W (Elev. 630 ft)
12:36 pm CDT Jul 26, 2026
1pm CDT Jul 26, 2026-6pm CDT Aug 1, 2026



