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.

Fair

77°F

25°C

Humidity 74%
Wind Speed Calm
Barometer 29.99 in (1013.9 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 4 Sep 4:51 am CDT

Detailed Forecast

Today
Hot and humid. Partly cloudy. High in the mid 90s. Highest heat index readings of around 100 in the afternoon. Light wind.
Tonight
Mostly clear. Low in the lower 70s to lower 80s. Light wind.
Saturday
Mostly sunny. High in the mid 90s. Light wind in the morning becoming southeast around 10 mph in the afternoon.
Saturday Night
Mostly clear. Low in the lower 70s to lower 80s. Southeast wind around 10 mph in the evening becoming light after midnight.
Sunday
Mostly sunny. High in the mid 90s. South wind around 10 mph.
Sunday Night
Partly cloudy. Low in the 70s.
Labor Day
Partly sunny in the morning then becoming mostly cloudy. A 40 percent chance of showers and thunderstorms. High around 90.
Monday Night
Mostly cloudy with a 40 percent chance of showers and thunderstorms. Low in the 70s.
Tuesday And Tuesday Night
Mostly cloudy with a 50 percent chance of showers and thunderstorms. High in the mid 80s. Low in the upper 60s to upper 70s.
Wednesday
Showers and thunderstorms likely. High in the lower 80s. Chance of rain 60 percent.
Wednesday Night
Cooler. Mostly cloudy with a 40 percent chance of showers and thunderstorms. Low in the upper 50s to upper 60s.
Thursday
Mostly sunny with a 20 percent chance of showers and thunderstorms. High around 80.



  Click Map For Detailed Forecast
333 AM CDT FRI SEP 4 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