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

Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Partly Cloudy

39°F

4°C

Humidity 62%
Wind Speed W 9 mph
Barometer 29.77 in (1008.8 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 16 Jan 9:54 am CST
Extended Forecast for

Chesterfield MO

  • Today

    Today: A 30 percent chance of rain, mainly after 5pm. Mostly cloudy, with a high near 45. West wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 45 °F

    Cloudy then
    Chance Rain

  • Tonight

    Tonight: A chance of rain before 7pm, then a chance of snow between 7pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 21. Northwest wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    Low: 21 °F

    Chance
    Rain/Snow
    then Partly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 28. West wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 28 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 12. West wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 12 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 35. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 35 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 25.

    High: 25 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of rain, mainly after 5pm. Mostly cloudy, with a high near 45. West wind 10 to 14 mph, with gusts as high as 25 mph.
Tonight
A chance of rain before 7pm, then a chance of snow between 7pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 21. Northwest wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 28. West wind 9 to 14 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 12. West wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 35. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 14.
M.L.King Day
Sunny, with a high near 25.
Monday Night
Mostly clear, with a low around 12.
Tuesday
Mostly sunny, with a high near 40.
Tuesday Night
Mostly clear, with a low around 28.
Wednesday
Mostly sunny, with a high near 50.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
A 20 percent chance of rain. Partly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chesterfield MO
 38.65°N 90.6°W (Elev. 466 ft)
Last Update:
8:06 am CST Jan 16, 2026
Forecast Valid:
10am CST Jan 16, 2026-6pm CST Jan 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation