National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Flash Flood Threat Shifts to Florida; Snowy in the Northern Plains; Fire Danger in the West

Showers and thunderstorms may produce flash flooding in northern and central Florida into Tuesday; and gusty winds and hail are also possible across the area Sunday. A strong cold front will bring below average temperatures and wintry precipitation to the northern High Plains. Elevated fire weather conditions are expected across parts of the Northwest and southern California. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

59°F

15°C

Humidity 51%
Wind Speed Calm
Barometer 29.98 in (1015.0 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 18 Apr 10:51 am CDT
Extended Forecast for

Saint Louis MO

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 65. Light and variable wind becoming northwest 5 to 9 mph in the afternoon.

    Chance
    T-storms

    High: 65 °F

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 44. West wind 5 to 9 mph.

    Chance
    Showers then
    Clear

    Low: 44 °F

  • Monday

    Monday: Sunny, with a high near 71. West wind 5 to 11 mph.

    Sunny

    High: 71 °F

  • Monday
    Night

    Monday Night: Mostly cloudy, with a low around 42. Northwest wind 8 to 10 mph becoming north after midnight.

    Mostly Cloudy

    Low: 42 °F

  • Tuesday

    Tuesday: Rain, mainly after 1pm. High near 53. North wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

    Slight Chance
    Rain then
    Rain

    High: 53 °F

  • Tuesday
    Night

    Tuesday Night: A 50 percent chance of rain before 1am. Widespread frost, mainly after 5am. Otherwise, mostly cloudy, with a low around 33.

    Chance Rain

    Low: 33 °F

  • Wednesday

    Wednesday: Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 52.

    Frost then
    Mostly Sunny

    High: 52 °F

  • Wednesday
    Night

    Wednesday Night: Areas of frost after 5am. Otherwise, mostly clear, with a low around 35.

    Partly Cloudy
    then Areas
    Frost

    Low: 35 °F

  • Thursday

    Thursday: Areas of frost before 8am. Otherwise, sunny, with a high near 60.

    Areas Frost
    then Sunny

    High: 60 °F

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 65. Light and variable wind becoming northwest 5 to 9 mph in the afternoon.
Tonight
A 30 percent chance of showers, mainly before 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 44. West wind 5 to 9 mph.
Monday
Sunny, with a high near 71. West wind 5 to 11 mph.
Monday Night
Mostly cloudy, with a low around 42. Northwest wind 8 to 10 mph becoming north after midnight.
Tuesday
Rain, mainly after 1pm. High near 53. North wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Tuesday Night
A 50 percent chance of rain before 1am. Widespread frost, mainly after 5am. Otherwise, mostly cloudy, with a low around 33.
Wednesday
Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 52.
Wednesday Night
Areas of frost after 5am. Otherwise, mostly clear, with a low around 35.
Thursday
Areas of frost before 8am. Otherwise, sunny, with a high near 60.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 44.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 60.
Friday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 63.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
Last Update:
10:25 am CDT Apr 18, 2021
Forecast Valid:
11am CDT Apr 18, 2021-6pm CDT Apr 24, 2021
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation