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Hazardous Weather Conditions
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fog/Mist
74°F
23°C
| Humidity | 98% |
| Wind Speed | Calm |
| Barometer | 29.93 in |
| Dewpoint | 73°F (23°C) |
| Visibility | 1.75 mi |
| Last update | 26 Jul 5:15 am CDT |
Extended Forecast for
Mount Olive IL
Extreme Heat Warning July 26, 11:00am until July 27, 09:00pm
Today

High: 93 °F
Slight Chance
T-storms and
Patchy FogTonight

Low: 75 °F
Partly Cloudy
Monday

High: 94 °F
Sunny
Monday Night

Low: 75 °F
Mostly Clear
Tuesday

High: 90 °F
Sunny
Tuesday Night

Low: 67 °F
Partly Cloudy
Wednesday

High: 86 °F
Sunny
Wednesday Night

Low: 63 °F
Mostly Clear
Thursday

High: 87 °F
Sunny
Detailed Forecast
Today
A slight chance of showers and thunderstorms between 10am and 1pm. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 93. Heat index values as high as 111. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 75. Light and variable wind.
Monday
Sunny, with a high near 94. Heat index values as high as 109. Light and variable wind becoming southwest 6 to 11 mph in the morning.
Monday Night
Mostly clear, with a low around 75. Southwest wind 6 to 9 mph becoming west after midnight.
Tuesday
Sunny, with a high near 90. North wind 6 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 65.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 65.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 85.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Mount Olive IL
39.07°N 89.73°W (Elev. 669 ft)
39.07°N 89.73°W (Elev. 669 ft)
4:51 am CDT Jul 26, 2026
5am CDT Jul 26, 2026-6pm CDT Aug 1, 2026



