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NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment

After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

81°F

27°C

Humidity 48%
Wind Speed S 17 G 23 mph
Barometer 29.83 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 15 May 5:50 pm CDT
Extended Forecast for

5 Miles N Royal Lakes IL

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 64. South wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before 11am. Mostly cloudy, with a high near 80. South wind 7 to 11 mph. Chance of precipitation is 70%.

    High: 80 °F

    T-storms
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 61. South wind 7 to 9 mph.

    Low: 61 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 86. Breezy, with a south wind 11 to 20 mph, with gusts as high as 28 mph.

    High: 86 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66. South wind around 16 mph, with gusts as high as 25 mph.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 87. Breezy. Chance of precipitation is 60%.

    High: 87 °F

    Breezy.
    Slight Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Breezy.

    Low: 66 °F

    Chance
    T-storms and
    Breezy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 79. Chance of precipitation is 80%.

    High: 79 °F

    Chance
    T-storms then
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 64. South wind 10 to 14 mph, with gusts as high as 23 mph.
Saturday
Showers and thunderstorms likely, mainly before 11am. Mostly cloudy, with a high near 80. South wind 7 to 11 mph. Chance of precipitation is 70%.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 61. South wind 7 to 9 mph.
Sunday
Sunny, with a high near 86. Breezy, with a south wind 11 to 20 mph, with gusts as high as 28 mph.
Sunday Night
Mostly clear, with a low around 66. South wind around 16 mph, with gusts as high as 25 mph.
Monday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 87. Breezy. Chance of precipitation is 60%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Breezy.
Tuesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 79. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Wednesday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 69.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 51.
Friday
Mostly sunny, with a high near 77.
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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:
5:56 pm CDT May 15, 2026
Forecast Valid:
6pm CDT May 15, 2026-6pm CDT May 22, 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