Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

50°F

10°C

Humidity 86%
Wind Speed SW 10 mph
Barometer 29.67 in (1004.5 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 6 Jan 4:51 am CST
Extended Forecast for

Frontenac MO

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 61. West wind 8 to 10 mph, with gusts as high as 22 mph.

    High: 61 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 36. West wind 5 to 7 mph becoming calm  after midnight.

    Low: 36 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59. Calm wind becoming south around 6 mph in the afternoon.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after midnight.  Increasing clouds, with a low around 46. South wind around 7 mph.

    Low: 46 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain.  High near 63. South wind 7 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 90%.

    High: 63 °F

    Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 47.

    Low: 47 °F

    Chance Rain

  • Friday

    Friday: A 20 percent chance of rain.  Mostly cloudy, with a high near 55.

    High: 55 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain, mainly before midnight.  Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 61. West wind 8 to 10 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 36. West wind 5 to 7 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 59. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
A 30 percent chance of rain after midnight. Increasing clouds, with a low around 46. South wind around 7 mph.
Thursday
Rain. High near 63. South wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 47.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 55.
Friday Night
A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Sunny, with a high near 41.
Sunday Night
Mostly clear, with a low around 28.
Monday
Sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Frontenac MO
 38.62°N 90.43°W (Elev. 597 ft)
4:51 am CST Jan 6, 2026
5am CST Jan 6, 2026-6pm CST Jan 12, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database