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.

Mostly Cloudy

N/A

Humidity NA
Wind Speed Calm
Barometer 29.89 in
Dewpoint N/A
Visibility 10.00 mi
Last update 14 Jun 2:35 am CDT
Extended Forecast for

Royal Lakes IL

  • Overnight

    Overnight: Isolated showers. Patchy fog after 3am. Otherwise, cloudy, with a low around 67. Light northeast wind. Chance of precipitation is 20%.

    Low: 67 °F

    Isolated
    Showers and
    Patchy Fog

  • Saturday

    Saturday: Isolated showers and thunderstorms. Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 80. North wind 6 to 9 mph. Chance of precipitation is 20%.

    High: 80 °F

    Isolated
    T-storms and
    Patchy Fog

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65. North wind 3 to 7 mph.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 83. Northeast wind 3 to 5 mph.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.

    High: 84 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.

    Low: 68 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Isolated showers. Patchy fog after 3am. Otherwise, cloudy, with a low around 67. Light northeast wind. Chance of precipitation is 20%.
Saturday
Isolated showers and thunderstorms. Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 80. North wind 6 to 9 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 65. North wind 3 to 7 mph.
Sunday
Mostly sunny, with a high near 83. Northeast wind 3 to 5 mph.
Sunday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm in the evening.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 72.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Juneteenth
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 65.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 84.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Royal Lakes IL
 39.1°N 89.98°W (Elev. 659 ft)
Last Update:
1:52 am CDT Jun 14, 2025
Forecast Valid:
2am CDT Jun 14, 2025-6pm CDT Jun 20, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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