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

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

35°F

2°C

Humidity 78%
Wind Speed Calm
Barometer 30.07 in (1018.4 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 14 Feb 12:54 am CST
Extended Forecast for

Chesterfield MO

  • Overnight

    Overnight: Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Rain, mainly after 10am. High near 51. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 100%.

    High: 51 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 45. East wind around 6 mph. Chance of precipitation is 100%.

    Low: 45 °F

    Rain

  • Sunday

    Sunday: A 20 percent chance of rain before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 58. Northeast wind 3 to 8 mph.

    High: 58 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 69.

    High: 69 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 39. Calm wind.
Saturday
Rain, mainly after 10am. High near 51. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 100%.
Saturday Night
Rain. Low around 45. East wind around 6 mph. Chance of precipitation is 100%.
Sunday
A 20 percent chance of rain before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 58. Northeast wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 39. Calm wind.
Washington's Birthday
Mostly sunny, with a high near 64.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Mostly cloudy, with a high near 69.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 71.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 45.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 71.
Thursday Night
Mostly cloudy, with a low around 42.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chesterfield MO
 38.65°N 90.6°W (Elev. 466 ft)
Last Update:
12:31 am CST Feb 14, 2026
Forecast Valid:
1am CST Feb 14, 2026-6pm CST Feb 20, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation