Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89° N Lon: 90.03° W Elev: 518 ft.

Overcast

66°F

19°C

Humidity 78%
Wind Speed N 8 mph
Barometer 30.00 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 22 Jun 11:50 am CDT
Detailed forecast for

Madison County

This Afternoon
Cloudy. Highs in the mid 70s. North winds 5 to 10 mph.
Tonight
Mostly cloudy in the evening, then clearing. Lows in the upper 50s. North winds 5 to 10 mph.
Tuesday
Sunny. Highs in the lower 80s. Northeast winds around 5 mph.
Tuesday Night
Mostly clear in the evening, then partly cloudy with a slight chance of showers after midnight. Lows in the lower 60s. East winds around 5 mph. Chance of rain 20 percent.
Wednesday
Partly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 80s. South winds around 5 mph. Chance of rain 50 percent.
Wednesday Night
Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the mid 60s. Chance of rain 50 percent.
Thursday
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent.
Thursday Night
Partly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the mid 60s. Chance of rain 50 percent.
Friday
Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent.
Friday Night
A chance of thunderstorms. Showers likely. Lows in the upper 60s. Chance of rain 70 percent.
Saturday
Partly sunny. A chance of showers and thunderstorms, mainly in the morning. Highs in the upper 80s. Chance of rain 50 percent.
Saturday Night
Partly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the lower 70s. Chance of rain 30 percent.
Sunday
Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105 in the afternoon.



Basemap Options
Click map to change the forecast location
Loading map...
1058 AM CDT Mon Jun 22 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database