Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
62°F
17°C
| Humidity | 89% |
| Wind Speed | S 9 mph |
| Barometer | 29.88 in |
| Dewpoint | 58°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 10 Mar 2:55 am CDT |
Extended Forecast for
3 Miles S Donnellson IL
Overnight

Low: 60 °F
Partly Cloudy
Tuesday

High: 79 °F
Mostly Sunny
Tuesday Night
Low: 54 °F
Slight Chance
T-storms then
T-storms
LikelyWednesday
High: 66 °F⇓
Breezy.
T-storms then
ShowersWednesday Night

Low: 31 °F
Mostly Cloudy
Thursday

High: 52 °F
Sunny
Thursday Night
Low: 43 °F
Mostly Cloudy
then Mostly
Cloudy and
BreezyFriday

High: 60 °F
Mostly Cloudy
Friday Night

Low: 37 °F
Mostly Cloudy
Detailed Forecast
Overnight
Partly cloudy, with a low around 60. South wind around 9 mph.
Tuesday
Mostly sunny, with a high near 79. South wind 8 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then showers and thunderstorms likely after 4am. Mostly cloudy, then gradually becoming mostly clear, with a low around 54. Southwest wind 15 to 17 mph, with gusts as high as 36 mph. Chance of precipitation is 70%.
Wednesday
Showers and possibly a thunderstorm before 1pm, then showers likely between 1pm and 2pm, then rain likely after 2pm. Temperature falling to around 48 by 5pm. Breezy, with a southwest wind 15 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy, with a low around 31. Northwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 26 mph.
Thursday
Sunny, with a high near 52.
Thursday Night
Mostly cloudy, with a low around 43. Breezy.
Friday
Mostly cloudy, with a high near 60.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
Partly sunny, with a high near 64.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 48.
Sunday
Rain likely. Mostly cloudy, with a high near 59. Breezy. Chance of precipitation is 70%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 21. Blustery. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 34.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
3 Miles S Donnellson IL
38.97°N 89.48°W (Elev. 600 ft)
38.97°N 89.48°W (Elev. 600 ft)
1:25 am CDT Mar 10, 2026
3am CDT Mar 10, 2026-6pm CDT Mar 16, 2026


