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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

33°F

1°C

Humidity 78%
Wind Speed SW 6 mph
Barometer 29.90 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 6 Dec 1:15 am CST
Extended Forecast for

5 Miles N Royal Lakes IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 25. West wind around 7 mph.

    Low: 25 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 37. Light and variable wind becoming southeast around 6 mph in the afternoon.

    High: 37 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly between 10pm and 2am. Cloudy, with a low around 31. Southeast wind 6 to 9 mph.

    Low: 31 °F

    Chance Rain

  • Sunday

    Sunday: A slight chance of rain before 11am, then a slight chance of snow between 11am and noon. Mostly cloudy, with a temperature falling to around 27 by 5pm. South wind 6 to 13 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 36 °F⇓

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13. North wind 5 to 10 mph.

    Low: 13 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 25. West wind around 7 mph.
Saturday
Partly sunny, with a high near 37. Light and variable wind becoming southeast around 6 mph in the afternoon.
Saturday Night
A 30 percent chance of rain, mainly between 10pm and 2am. Cloudy, with a low around 31. Southeast wind 6 to 9 mph.
Sunday
A slight chance of rain before 11am, then a slight chance of snow between 11am and noon. Mostly cloudy, with a temperature falling to around 27 by 5pm. South wind 6 to 13 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13. North wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 29.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 34.
Wednesday
A 20 percent chance of rain before noon. Partly sunny, with a high near 40.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 22.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 33. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 17.
Friday
Partly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Royal Lakes IL
 39.19°N 89.95°W (Elev. 584 ft)
Last Update:
12:36 am CST Dec 6, 2025
Forecast Valid:
1am CST Dec 6, 2025-6pm CST Dec 12, 2025
 
Forecast Discussion
 
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Additional Resources

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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