Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

89°F

32°C

Humidity 42%
Wind Speed SW 10 mph
Barometer 30.06 in (1016.3 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 31 Aug 10:51 am CDT
Extended Forecast for

Berkeley MO

Heat Advisory August 31, 12:00pm until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Sunny and hot, with a high near 98. Heat index values as high as 101. Southwest wind 7 to 13 mph.

    High: 98 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 79. South wind 6 to 8 mph.

    Low: 79 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 100. Southwest wind 5 to 7 mph.

    High: 100 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 80. South wind 5 to 7 mph.

    Low: 80 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100. Southwest wind 6 to 8 mph.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 81.

    Low: 81 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 80.

    Low: 80 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 95.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 98. Heat index values as high as 101. Southwest wind 7 to 13 mph.
Tonight
Clear, with a low around 79. South wind 6 to 8 mph.
Tuesday
Sunny and hot, with a high near 100. Southwest wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 80. South wind 5 to 7 mph.
Wednesday
Sunny and hot, with a high near 100. Southwest wind 6 to 8 mph.
Wednesday Night
Mostly clear, with a low around 81.
Thursday
Sunny and hot, with a high near 100.
Thursday Night
Mostly clear, with a low around 80.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 77.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 76.
Sunday
Mostly sunny, with a high near 92.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Berkeley MO
 38.73°N 90.34°W (Elev. 597 ft)
10:26 am CDT Aug 31, 2026
10am CDT Aug 31, 2026-6pm CDT Sep 6, 2026
 
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