Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Overcast
68°F
20°C
| Humidity | 93% |
| Wind Speed | Calm |
| Barometer | 30.07 in |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 15 Oct 3:15 am CDT |
Extended Forecast for
Marine IL
Overnight
Low: 66 °F
Slight Chance
ShowersThursday
High: 81 °F
Showers
Likely and
Patchy FogThursday Night
Low: 47 °F
Showers
LikelyFriday
High: 57 °F
Partly Sunny
and BreezyFriday Night
Low: 38 °F
Mostly Cloudy
and Breezy
then Partly
CloudySaturday
High: 60 °F
Sunny
Saturday Night
Low: 35 °F
Clear
Sunday
High: 67 °F
Sunny
Sunday Night
Low: 38 °F
Mostly Clear
Detailed Forecast
Overnight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 66. Light east wind.
Thursday
A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and 1pm, then a chance of showers and thunderstorms after 1pm. Patchy fog between 10am and 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 81. Light and variable wind becoming south 6 to 11 mph in the morning. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms likely before 1am, then scattered showers between 1am and 3am. Increasing clouds, with a low around 47. Southwest wind 11 to 17 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 57. Breezy, with a northwest wind 20 to 23 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around 38. Breezy, with a north wind 10 to 20 mph.
Saturday
Sunny, with a high near 60.
Saturday Night
Clear, with a low around 35.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 38.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 78.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marine IL
38.78°N 89.77°W (Elev. 512 ft)
38.78°N 89.77°W (Elev. 512 ft)
1:26 am CDT Oct 15, 2026
3am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
