Strong to Severe Thunderstorms, Heavy Rain, And Flash Flooding Across the Midwest

Strong to severe thunderstorms, heavy rain and flooding is possible from the Great Lakes to the south-central Plains, as a strong cold front pushes into the extended area. Meanwhile, well above average temperatures are very likely across the Northeastern quad of the country, including the Northeast, Mid-Atlantic, Great Lakes and Ohio Valley. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast

79°F

26°C

Humidity 65%
Wind Speed S 12 mph
Barometer 30.05 in (1016.4 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 21 Sep 10:51 pm CDT
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: Mostly cloudy, with a low around 72. South wind around 10 mph.

    Mostly Cloudy

    Low: 72 °F

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after noon.  Mostly cloudy, with a high near 86. South wind 9 to 13 mph, with gusts as high as 23 mph.

    Slight Chance
    T-storms then
    Chance
    T-storms

    High: 86 °F

  • Sunday
    Night

    Sunday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am.  Low around 65. Southwest wind around 10 mph becoming northwest after midnight.  Chance of precipitation is 80%.

    Showers

    Low: 65 °F

  • Monday

    Monday: Sunny, with a high near 80. Northwest wind around 5 mph becoming calm  in the morning.

    Sunny

    High: 80 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 61. Calm wind.

    Mostly Clear

    Low: 61 °F

  • Tuesday

    Tuesday: Partly sunny, with a high near 81.

    Partly Sunny

    High: 81 °F

  • Tuesday
    Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 65.

    Chance
    T-storms

    Low: 65 °F

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly before 1pm.  Partly sunny, with a high near 84.

    Chance
    T-storms

    High: 84 °F

  • Wednesday
    Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am.  Mostly cloudy, with a low around 65.

    Chance
    T-storms

    Low: 65 °F

Detailed Forecast

Tonight
Mostly cloudy, with a low around 72. South wind around 10 mph.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 86. South wind 9 to 13 mph, with gusts as high as 23 mph.
Sunday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 65. Southwest wind around 10 mph becoming northwest after midnight. Chance of precipitation is 80%.
Monday
Sunny, with a high near 80. Northwest wind around 5 mph becoming calm in the morning.
Monday Night
Mostly clear, with a low around 61. Calm wind.
Tuesday
Partly sunny, with a high near 81.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 84.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 65.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 80.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 88.
Click Map For Forecast
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
7:42 pm CDT Sep 21, 2019
11pm CDT Sep 21, 2019-6pm CDT Sep 28, 2019
 
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