On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Strong Thunderstorms Possible for Portions of the Great Lake States

Storms over the Great Lake States may contain heavy rain and strong winds. More thunderstorms are possible over the Desert Southwest and central Plains. High fire danger continues in the Great Basin. Very warm and humid conditions continue across the south, southeast and mid-Atlantic states.
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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 71%
Wind Speed Vrbl 3 mph
Barometer 30.01 in (1014.6 mb)
Dewpoint 68°F (20°C)
Visibility 8.00 mi
Heat Index80°F (27°C)
Last update 4 Sep 6:51 am CDT
Extended Forecast for

Saint Louis MO

  • Today

    Today: Mostly sunny, with a high near 95. Heat index values as high as 100. Calm wind becoming south around 5 mph in the afternoon.

    Mostly Sunny

    High: 95 °F

  • Tonight

    Tonight: Mostly clear, with a low around 79. South wind around 5 mph becoming calm  in the evening.

    Mostly Clear

    Low: 79 °F

  • Saturday

    Saturday: Sunny, with a high near 94. Calm wind becoming south around 6 mph in the afternoon.

    Sunny

    High: 94 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 79. Southeast wind around 6 mph becoming calm  in the evening.

    Mostly Clear

    Low: 79 °F

  • Sunday

    Sunday: Sunny, with a high near 94. South wind 3 to 7 mph.

    Sunny

    High: 94 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 80.

    Partly Cloudy

    Low: 80 °F

  • Labor
    Day

    Labor Day: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 89.

    Chance
    T-storms

    High: 89 °F

  • Monday
    Night

    Monday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 79.

    Chance
    T-storms

    Low: 79 °F

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 86.

    Chance
    T-storms

    High: 86 °F

Detailed Forecast

Today
Mostly sunny, with a high near 95. Heat index values as high as 100. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 79. South wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 94. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 79. Southeast wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 94. South wind 3 to 7 mph.
Sunday Night
Partly cloudy, with a low around 80.
Labor Day
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 79.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Wednesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
  Click Map For Forecast
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
5:56 am CDT Sep 4, 2015
7am CDT Sep 4, 2015-6pm CDT Sep 10, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database