Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Excessive Heat in parts of the Central and Southern U.S.

Heat Advisories and Excessive Heat Warnings extend from the Southern Plains into the Mid-Atlantic and Southeast today. High temperatures for these areas will mostly be in the upper 90s. A few locations may exceed 100. Hot temperatures combined with high dew points will create heat index values of 100 to 115 degrees. Read More >

Current conditions at

St. Louis, Lambert-St. Louis International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

78°F

26°C

Humidity 69%
Wind Speed W 13 mph
Barometer 29.90 in (1011.0 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 23 Jul 8:51 am CDT
Extended Forecast for

2 Miles SW Brooklyn IL

Excessive Heat Warning until July 23, 08:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until July 23, 08:00pm

    NOW until
    8:00pm Sun

    Excessive Heat Warning

  • Today

    Today: Cloudy through mid morning, then gradual clearing and hot, with a high near 98. Heat index values as high as 104. Northwest wind 5 to 7 mph.

    Hot

    High: 98 °F

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before midnight.  Mostly clear, with a low around 72. Northwest wind around 5 mph becoming calm  in the evening.

    Slight Chance
    T-storms then
    Mostly Clear

    Low: 72 °F

  • Monday

    Monday: Sunny, with a high near 91. North wind 3 to 5 mph.

    Sunny

    High: 91 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 72. Northeast wind around 5 mph becoming calm  in the evening.

    Mostly Clear

    Low: 72 °F

  • Tuesday

    Tuesday: Sunny, with a high near 94. Calm wind becoming east around 5 mph in the afternoon.

    Sunny

    High: 94 °F

  • Tuesday
    Night

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

    Mostly Clear

    Low: 76 °F

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 99.

    Hot

    High: 99 °F

  • Wednesday
    Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 77.

    Chance
    T-storms

    Low: 77 °F

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing and hot, with a high near 98. Heat index values as high as 104. Northwest wind 5 to 7 mph.
Tonight
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 72. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 91. North wind 3 to 5 mph.
Monday Night
Mostly clear, with a low around 72. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 94. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Mostly sunny and hot, with a high near 99.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 77.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 91.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 71.
Friday
Mostly sunny, with a high near 88.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Sunny, with a high near 88.
Click Map For Forecast
Point Forecast:
2 Miles SW Brooklyn IL
 38.62°N 90.2°W (Elev. 446 ft)
8:12 am CDT Jul 23, 2017
8am CDT Jul 23, 2017-6pm CDT Jul 29, 2017
 
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