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.

Fair

52°F

11°C

Humidity 41%
Wind Speed W 16 G 30 mph
Barometer 29.53 in (999.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 19 Feb 10:51 pm CST
Extended Forecast for

Saint John MO

  • Tonight

    Tonight: Clear early, then becoming mostly cloudy, with a low around 32. Breezy, with a west wind 18 to 20 mph, with gusts as high as 38 mph.

    Low: 32 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 42. Breezy, with a west wind 10 to 20 mph, with gusts as high as 37 mph.

    High: 42 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow after 5am. Increasing clouds, with a low around 28. North wind around 7 mph.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 44. Northwest wind 8 to 10 mph.

    High: 44 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25. Northwest wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 38.

    High: 38 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 20.

    Low: 20 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear early, then becoming mostly cloudy, with a low around 32. Breezy, with a west wind 18 to 20 mph, with gusts as high as 38 mph.
Friday
Mostly sunny, with a high near 42. Breezy, with a west wind 10 to 20 mph, with gusts as high as 37 mph.
Friday Night
A 20 percent chance of snow after 5am. Increasing clouds, with a low around 28. North wind around 7 mph.
Saturday
Mostly sunny, with a high near 44. Northwest wind 8 to 10 mph.
Saturday Night
Mostly clear, with a low around 25. Northwest wind 10 to 14 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 38.
Sunday Night
Clear, with a low around 20.
Monday
Sunny, with a high near 37.
Monday Night
Mostly clear, with a low around 22.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 60.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 39.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint John MO
 38.71°N 90.34°W (Elev. 597 ft)
Last Update:
10:56 pm CST Feb 19, 2026
Forecast Valid:
11pm CST Feb 19, 2026-6pm CST Feb 26, 2026
 
Forecast Discussion
 
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Additional Resources

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