Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

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

Fair

73°F

23°C

Humidity 53%
Wind Speed SE 12 mph
Barometer 29.96 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 26 Apr 11:45 am CDT
Detailed forecast for

Macoupin County

This Afternoon
Sunny. Highs in the upper 70s. Southeast winds 10 to 15 mph.
Tonight
Mostly cloudy. Showers and thunderstorms likely after midnight. Not as cool with lows around 60. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.
Monday
Showers and thunderstorms likely. Breezy and more humid with highs in the upper 70s. South winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 70 percent.
Monday Night
Showers and thunderstorms likely in the evening, then partly cloudy after midnight. Breezy, cooler with lows in the upper 40s. Southwest winds 20 to 25 mph with gusts up to 35 mph, becoming west 10 to 15 mph after midnight. Chance of rain 70 percent.
Tuesday
Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Cooler with highs in the upper 60s. Northwest winds 5 to 10 mph. Chance of rain 20 percent.
Tuesday Night
Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 40s. Chance of rain 50 percent.
Wednesday And Wednesday Night
Mostly clear. Highs in the mid 60s. Lows in the lower 40s.
Thursday
Mostly sunny. Highs in the mid 60s.
Thursday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 40s.
Friday Through Saturday
Partly cloudy. Highs in the mid 60s. Lows in the lower 40s.



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1053 AM CDT Sun Apr 26 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database