Dangerous Heat and Possible Flooding
Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >
Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Partly Cloudy
86°F
30°C
| Humidity | 38% |
| Wind Speed | N 6 mph |
| Barometer | 30.13 in |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 28 Aug 2:50 pm CDT |
Extended Forecast for
Pierron IL
Tonight
Low: 63 °F
Mostly Clear
Saturday
High: 87 °F
Mostly Sunny
Saturday Night
Low: 68 °F
Mostly Clear
Sunday
High: 92 °F
Sunny
Sunday Night
Low: 74 °F
Mostly Clear
Monday
High: 96 °F
Sunny
Monday Night
Low: 75 °F
Mostly Clear
Tuesday
High: 97 °F
Hot
Tuesday Night
Low: 77 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 63. Calm wind.
Saturday
Mostly sunny, with a high near 87. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 68. South wind 3 to 5 mph.
Sunday
Sunny, with a high near 92. South wind 5 to 11 mph.
Sunday Night
Mostly clear, with a low around 74. South wind 5 to 7 mph.
Monday
Sunny, with a high near 96.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny and hot, with a high near 97.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 97.
Wednesday Night
Mostly clear, with a low around 77.
Thursday
Sunny and hot, with a high near 98.
Thursday Night
Mostly clear, with a low around 76.
Friday
Sunny, with a high near 96.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Pierron IL
38.78°N 89.57°W (Elev. 512 ft)
38.78°N 89.57°W (Elev. 512 ft)
1:25 pm CDT Aug 28, 2026
3pm CDT Aug 28, 2026-6pm CDT Sep 4, 2026
Additional Resources
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