Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
64°F
18°C
| Humidity | 92% |
| Wind Speed | S 6 mph |
| Barometer | 29.92 in |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 17 Apr 2:55 am CDT |
Extended Forecast for
Pierron IL
Overnight

Low: 58 °F
Partly Cloudy
Friday
High: 83 °F
Mostly Sunny
then Chance
T-stormsFriday Night
Low: 49 °F
Chance
T-storms then
Heavy RainSaturday

High: 53 °F
Showers
LikelySaturday Night

Low: 38 °F
Mostly Clear
Sunday

High: 64 °F
Sunny
Sunday Night

Low: 40 °F
Mostly Clear
Monday

High: 69 °F
Sunny
Monday Night

Low: 50 °F
Mostly Clear
Detailed Forecast
Overnight
Partly cloudy, with a low around 58. Light south wind.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 83. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph.
Friday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Low around 49. South wind 13 to 16 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%.
Saturday
Showers likely, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a steady temperature around 53. Northwest wind 16 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 38. Northwest wind 5 to 14 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Pierron IL
38.78°N 89.57°W (Elev. 512 ft)
38.78°N 89.57°W (Elev. 512 ft)
2:36 am CDT Apr 17, 2026
3am CDT Apr 17, 2026-6pm CDT Apr 23, 2026


