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

Scattered Severe Thunderstorms and Developing Flooding Risk in the Central U.S.; Fire Weather in the West

Scattered severe thunderstorms are expected across portions of the central and southern High Plains today and Saturday. Elevated to critical fire weather conditions are forecast across parts of the Western U.S. from today into Monday. Heavy rainfall is forecast from the western Gulf Coast into the Midwest from this weekend into much of next week. Read More >

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Partly Cloudy

68°F

20°C

Humidity 26%
Wind Speed SE 10 mph
Barometer 30.21 in (1022.7 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 14 May 7:51 pm CDT
Extended Forecast for

Saint Charles MO

  • Tonight

    Tonight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 53. South wind around 6 mph.

    Mostly Cloudy
    then Slight
    Chance
    Showers

    Low: 53 °F

  • Saturday

    Saturday: A 50 percent chance of showers. Cloudy, with a high near 67. South wind 6 to 8 mph.

    Chance
    Showers

    High: 67 °F

  • Saturday
    Night

    Saturday Night: Showers likely, then showers and possibly a thunderstorm after 1am. Low around 56. Southeast wind 3 to 7 mph. Chance of precipitation is 80%.

    Showers

    Low: 56 °F

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 70. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 70%.

    Showers
    Likely

    High: 70 °F

  • Sunday
    Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 61. Southeast wind 3 to 5 mph. Chance of precipitation is 80%.

    Showers

    Low: 61 °F

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 73. Chance of precipitation is 80%.

    Showers

    High: 73 °F

  • Monday
    Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.

    Chance
    Showers

    Low: 62 °F

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 74. Chance of precipitation is 50%.

    Chance
    Showers then
    Chance
    T-storms

    High: 74 °F

  • Tuesday
    Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.

    Chance
    Showers

    Low: 63 °F

Detailed Forecast

Tonight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 53. South wind around 6 mph.
Saturday
A 50 percent chance of showers. Cloudy, with a high near 67. South wind 6 to 8 mph.
Saturday Night
Showers likely, then showers and possibly a thunderstorm after 1am. Low around 56. Southeast wind 3 to 7 mph. Chance of precipitation is 80%.
Sunday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 70. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm. Low around 61. Southeast wind 3 to 5 mph. Chance of precipitation is 80%.
Monday
Showers and possibly a thunderstorm. High near 73. Chance of precipitation is 80%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 74. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Saint Charles MO
 38.78°N 90.51°W (Elev. 597 ft)
Last Update:
5:11 pm CDT May 14, 2021
Forecast Valid:
8pm CDT May 14, 2021-6pm CDT May 21, 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