Current conditions at

St. Louis Regional Airport (KALN)

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

Fair

79°F

26°C

Humidity 32%
Wind Speed N 7 mph
Barometer 30.05 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 28 Sep 1:50 pm CDT
Detailed forecast for

Montgomery County

This Afternoon
Sunny. Highs in the upper 70s. Northeast winds around 5 mph.
Tonight
Clear. Lows in the lower 50s. Light and variable winds.
Tuesday
Sunny. Highs in the lower 80s. Southeast winds around 5 mph.
Tuesday Night
Mostly clear in the evening, then becoming partly cloudy. Not as cool with lows in the lower 60s. Southeast winds around 5 mph.
Wednesday
Mostly sunny. Highs in the upper 80s. South winds 5 to 10 mph.
Wednesday Night
Mostly cloudy. Lows in the upper 60s.
Thursday
Mostly cloudy. A chance of showers in the morning, then showers likely with a slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 60 percent.
Thursday Night
Showers likely. A chance of thunderstorms, mainly in the evening. Lows in the lower 60s. Chance of rain 70 percent.
Friday
A slight chance of thunderstorms. Showers likely, mainly in the morning. Cooler with highs in the lower 70s. Chance of rain 70 percent.
Friday Night Through Saturday Night
Mostly cloudy with a 50 percent chance of showers. Lows in the mid 50s. Highs around 70.
Sunday
Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 20 percent.



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128 PM CDT Mon Sep 28 2026
 
 

Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database