Current conditions at

St. Louis Regional Airport (KALN)

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

Fair

70°F

21°C

Humidity 57%
Wind Speed S 6 mph
Barometer 30.30 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 27 Aug 9:50 am CDT
Detailed forecast for

Macoupin County

Rest Of Today
Sunny. Highs in the upper 70s. South winds around 5 mph.
Tonight
Partly cloudy. Lows in the mid 50s. Southeast winds around 5 mph.
Thursday
Sunny. Highs in the lower 80s. Southwest winds around 5 mph.
Thursday Night
Mostly clear. Lows in the upper 50s. South winds around 5 mph, becoming west after midnight.
Friday
Sunny. Highs in the upper 70s. Northeast winds around 5 mph.
Friday Night And Saturday
Mostly clear. Lows in the lower 50s. Highs in the upper 70s.
Saturday Night And Sunday
Partly cloudy. Lows in the mid 50s. Highs in the upper 70s.
Sunday Night Through Tuesday
Mostly clear. Lows in the mid 50s. Highs in the lower 80s.



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1014 AM CDT Wed Aug 27 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database