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

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Partly Cloudy

73°F

23°C

Humidity 64%
Wind Speed S 12 G 25 mph
Barometer 29.83 in (1009.0 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 2 Apr 10:51 pm CDT
Extended Forecast for

Frontenac MO

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Southwest wind 5 to 9 mph becoming light and variable after midnight.

    Low: 61 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, with a high near 82. Light southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

    High: 82 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 55. South wind around 10 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%.

    Low: 55 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 64. West wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    High: 64 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Southwest wind 5 to 9 mph becoming light and variable after midnight.
Friday
A 50 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, with a high near 82. Light southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Friday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 55. South wind around 10 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%.
Saturday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 64. West wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Saturday Night
Partly cloudy, with a low around 41. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 60.
Sunday Night
Clear, with a low around 41.
Monday
Sunny, with a high near 64.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Frontenac MO
 38.62°N 90.4°W (Elev. 597 ft)
Last Update:
10:21 pm CDT Apr 2, 2026
Forecast Valid:
11pm CDT Apr 2, 2026-6pm CDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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