National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

37°F

3°C

Humidity 41%
Wind Speed S 18 mph
Barometer 29.81 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 24 Feb 11:50 am CST
Extended Forecast for

Royal Lakes IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 51. Breezy, with a southwest wind 16 to 23 mph, with gusts as high as 34 mph.

    High: 51 °F

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 31. Southwest wind 9 to 14 mph becoming light and variable after midnight.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 49. North wind 3 to 6 mph.

    High: 49 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 32. East wind 3 to 8 mph.

    Low: 32 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain before noon. Partly sunny, with a high near 49. East wind 5 to 8 mph becoming west in the afternoon.

    High: 49 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 51. Breezy, with a southwest wind 16 to 23 mph, with gusts as high as 34 mph.
Tonight
Mostly cloudy, with a low around 31. Southwest wind 9 to 14 mph becoming light and variable after midnight.
Wednesday
Partly sunny, with a high near 49. North wind 3 to 6 mph.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 32. East wind 3 to 8 mph.
Thursday
A 20 percent chance of rain before noon. Partly sunny, with a high near 49. East wind 5 to 8 mph becoming west in the afternoon.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 62.
Saturday Night
A slight chance of rain and snow. Partly cloudy, with a low around 29. Chance of precipitation is 20%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Royal Lakes IL
 39.1°N 89.95°W (Elev. 663 ft)
Last Update:
12:26 pm CST Feb 24, 2026
Forecast Valid:
12pm CST Feb 24, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation