Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

88°F

31°C

Humidity 40%
Wind Speed SW 9 mph
Barometer 30.07 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 30 Aug 11:45 am CDT
Extended Forecast for

5 Miles N Royal Lakes IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 93. South wind 8 to 10 mph.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 71. South wind around 7 mph.

    Low: 71 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 96. Heat index values as high as 101. South wind 6 to 9 mph.

    High: 96 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South wind around 6 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. Southwest wind 5 to 7 mph.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 77.

    Low: 77 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

Detailed Forecast

This Afternoon
Sunny, with a high near 93. South wind 8 to 10 mph.
Tonight
Mostly clear, with a low around 71. South wind around 7 mph.
Monday
Sunny, with a high near 96. Heat index values as high as 101. South wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 75. South wind around 6 mph.
Tuesday
Sunny and hot, with a high near 98. Southwest wind 5 to 7 mph.
Tuesday Night
Clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny and hot, with a high near 98.
Thursday Night
Mostly clear, with a low around 75.
Friday
A 20 percent chance of showers. Sunny, with a high near 96.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Royal Lakes IL
 39.19°N 89.95°W (Elev. 584 ft)
12:11 pm CDT Aug 30, 2026
12pm CDT Aug 30, 2026-6pm CDT Sep 5, 2026
 
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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