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Severe Thunderstorms and Heavy Rain Exacerbate Ongoing Flooding; Cold and Wintry Continue Out West

A developing wave will bring a threat of severe thunderstorms Saturday from the Arklatex area to the Middle Mississippi Valley; and may produce tornadoes, damaging winds, and large hail; including potential for significant tornadoes and very large hail. Additional heavy rain will increase ongoing flooding. Heavy western mountain and Upper Midwest snow; and ice in the Northeast is also expected. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast

45°F

7°C

Humidity 86%
Wind Speed N 6 mph
Barometer 30.25 in (1024.8 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 23 Feb 4:51 pm CST
Extended Forecast for

Saint Charles MO

  • Tonight

    Tonight: Showers, with thunderstorms also possible after 4am.  Patchy fog after 5am. Low around 41. Light and variable wind becoming northeast 5 to 8 mph after midnight.  Chance of precipitation is 100%.

    Showers and
    Patchy Fog

    Low: 41 °F

  • Saturday

    Saturday: Showers and possibly a thunderstorm.  Patchy fog before 7am. High near 58. Northeast wind 7 to 11 mph becoming southeast in the afternoon.  Chance of precipitation is 100%.

    Showers and
    Patchy Fog

    High: 58 °F

  • Saturday
    Night

    Saturday Night: Showers and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am.  Low around 34. Southeast wind 9 to 16 mph becoming west after midnight. Winds could gust as high as 28 mph.  Chance of precipitation is 80%.

    Showers

    Low: 34 °F

  • Sunday

    Sunday: Sunny, with a high near 53. West wind 6 to 10 mph.

    Sunny

    High: 53 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 32. Southwest wind around 6 mph becoming calm  in the evening.

    Mostly Clear

    Low: 32 °F

  • Monday

    Monday: Sunny, with a high near 59.

    Sunny

    High: 59 °F

  • Monday
    Night

    Monday Night: Clear, with a low around 39.

    Clear

    Low: 39 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66.

    Mostly Sunny

    High: 66 °F

  • Tuesday
    Night

    Tuesday Night: A 50 percent chance of showers after 7pm.  Mostly cloudy, with a low around 48.

    Chance
    Showers

    Low: 48 °F

Detailed Forecast

Tonight
Showers, with thunderstorms also possible after 4am. Patchy fog after 5am. Low around 41. Light and variable wind becoming northeast 5 to 8 mph after midnight. Chance of precipitation is 100%.
Saturday
Showers and possibly a thunderstorm. Patchy fog before 7am. High near 58. Northeast wind 7 to 11 mph becoming southeast in the afternoon. Chance of precipitation is 100%.
Saturday Night
Showers and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am. Low around 34. Southeast wind 9 to 16 mph becoming west after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 80%.
Sunday
Sunny, with a high near 53. West wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 32. Southwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 59.
Monday Night
Clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
A 50 percent chance of showers after 7pm. Mostly cloudy, with a low around 48.
Wednesday
A 50 percent chance of showers. Cloudy, with a high near 63.
Wednesday Night
Showers. Low around 45. Chance of precipitation is 80%.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 56.
Thursday Night
Partly cloudy, with a low around 35.
Friday
Mostly sunny, with a high near 53.
Click Map For Forecast
Point Forecast:
Saint Charles MO
 38.78°N 90.51°W (Elev. 597 ft)
3:27 pm CST Feb 23, 2018
5pm CST Feb 23, 2018-6pm CST Mar 2, 2018
 
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