Preview of NWS' New Point Forecast Icons
Effective July 7, 2015, NWS will implement changes to the icons depicted on all of its Point Forecast pages. Highlights will include new icons with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

You may preview these updates in real time for this location. View additional details, and send any comments to icons@noaa.gov.

Please note the preview site is not operational, so performance may be slow during periods of peak access.

Severe weather and flash flooding possible Wednesday across portions of the Mississippi and Tennessee Valleys

Strong to severe storms are expected to develop across portions of the Mid-Mississippi Valley on Wednesday. A Slight Risk has been highlighted to indicate the area most likely to see supercell activity. Heavy rainfall from the Mid-Mississippi Valley into the Tennessee Valley could lead to flash flooding. Some areas could see as much as 3 inches of rainfall.
Read More...

Current conditions at

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

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

75°F

24°C

Humidity 82%
Wind Speed SW 3 mph
Barometer 29.92 in (1011.8 mb)
Dewpoint 69°F (21°C)
Visibility 7.00 mi
Last update 1 Jul 12:51 am CDT
Extended Forecast for

Saint Louis MO

  • Overnight

    Chance Thunderstorms Chance for Measurable Precipitation 50%

    Chance
    Thunderstorms

    Low: 70 °F

  • Wednesday

    Heavy Rain Chance for Measurable Precipitation 80%

    Heavy
    Rain

    High: 77 °F

  • Wednesday
    Night

    Heavy Rain Chance for Measurable Precipitation 80%

    Heavy
    Rain

    Low: 66 °F

  • Thursday

    Chance Thunderstorms Chance for Measurable Precipitation 40%

    Chance
    Thunderstorms

    High: 79 °F

  • Thursday
    Night

    Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

    Slight Chc
    Thunderstorms

    Low: 65 °F

  • Friday

    Chance Thunderstorms Chance for Measurable Precipitation 40%

    Chance
    Thunderstorms

    High: 79 °F

  • Friday
    Night

    Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

    Slight Chc
    Thunderstorms

    Low: 65 °F

  • Independence
    Day

    Chance Thunderstorms Chance for Measurable Precipitation 30%

    Chance
    Thunderstorms

    High: 80 °F

  • Saturday
    Night

    Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

    Slight Chc
    Thunderstorms

    Low: 67 °F

Detailed Forecast

Overnight
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Calm wind.
Wednesday
Showers and thunderstorms. Some of the storms could produce heavy rainfall. High near 77. Light and variable wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 80%.
Wednesday Night
Showers and thunderstorms. Some of the storms could produce heavy rainfall. Low around 66. South wind 5 to 7 mph. Chance of precipitation is 80%.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Northeast wind 7 to 9 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. North wind 5 to 9 mph.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 79.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Independence Day
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.
  Click Map For Forecast
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
10:17 pm CDT Jun 30, 2015
2am CDT Jul 1, 2015-6pm CDT Jul 7, 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