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.

Dangerous heat continues across lower Miss. Valley, Deep South

High temperatures and dew points will persist Thursday into Friday across parts of the lower Miss. Valley & Deep South, creating dangerous heat index values in excess of 110 degrees for some locations. Heat Advisories & Excessive Heat Warnings are in effect across the region. Take extra precautions if you work or spend time outside & know the signs and symptoms of heat exhaustion and heat stroke.
Read More...

Current conditions at

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

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Partly Cloudy

86°F

30°C

Humidity 40%
Wind Speed N 3 mph
Barometer 30.18 in (1020.7 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 30 Jul 10:51 am CDT
Extended Forecast for

Saint Louis MO

  • Today

    Today: Sunny, with a high near 90. Northwest wind 3 to 6 mph.

    Sunny

    High: 90 °F

  • Tonight

    Tonight: Clear, with a low around 69. West wind around 6 mph.

    Clear

    Low: 69 °F

  • Friday

    Friday: Sunny, with a high near 91. West wind around 6 mph.

    Sunny

    High: 91 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers and thunderstorms.  Mostly clear, with a low around 69. Northwest wind 5 to 7 mph.

    Slight Chance
    T-storms

    Low: 69 °F

  • Saturday

    Saturday: Sunny, with a high near 89. Northwest wind around 6 mph.

    Sunny

    High: 89 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 68.

    Partly Cloudy

    Low: 68 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 89.

    Mostly Sunny

    High: 89 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 72.

    Mostly Clear

    Low: 72 °F

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 92.

    Slight Chance
    T-storms

    High: 92 °F

Detailed Forecast

Today
Sunny, with a high near 90. Northwest wind 3 to 6 mph.
Tonight
Clear, with a low around 69. West wind around 6 mph.
Friday
Sunny, with a high near 91. West wind around 6 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 69. Northwest wind 5 to 7 mph.
Saturday
Sunny, with a high near 89. Northwest wind around 6 mph.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 72.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
  Click Map For Forecast
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
10:41 am CDT Jul 30, 2015
11am CDT Jul 30, 2015-6pm CDT Aug 5, 2015
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database