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.

Overcast

55°F

13°C

Humidity 57%
Wind Speed Calm
Barometer 30.01 in (1016.4 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 28 Feb 6:54 pm CST
Extended Forecast for

Chesterfield MO

  • Tonight

    Tonight: Mostly clear, with a low around 32. North wind 6 to 11 mph, with gusts as high as 22 mph.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 47. Northeast wind 8 to 10 mph.

    High: 47 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Rain likely before 9pm, then rain and snow likely. Cloudy, with a low around 33. East wind around 8 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow
    Likely

  • Monday

    Monday: Rain likely, mainly before noon. Cloudy, with a high near 45. East wind 7 to 9 mph. Chance of precipitation is 60%.

    High: 45 °F

    Rain Likely
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain. Low around 40. Southeast wind around 6 mph. Chance of precipitation is 80%.

    Low: 40 °F

    Rain

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm before 3pm, then rain likely. High near 65. Chance of precipitation is 90%.

    High: 65 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 53. Chance of precipitation is 80%.

    Low: 53 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. High near 69. Chance of precipitation is 80%.

    High: 69 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 32. North wind 6 to 11 mph, with gusts as high as 22 mph.
Sunday
Increasing clouds, with a high near 47. Northeast wind 8 to 10 mph.
Sunday Night
Rain likely before 9pm, then rain and snow likely. Cloudy, with a low around 33. East wind around 8 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday
Rain likely, mainly before noon. Cloudy, with a high near 45. East wind 7 to 9 mph. Chance of precipitation is 60%.
Monday Night
Rain. Low around 40. Southeast wind around 6 mph. Chance of precipitation is 80%.
Tuesday
Rain and possibly a thunderstorm before 3pm, then rain likely. High near 65. Chance of precipitation is 90%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 53. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm. High near 69. Chance of precipitation is 80%.
Wednesday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Thursday
Rain likely. Partly sunny, with a high near 72. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of rain and thunderstorms. Partly cloudy, with a low around 56.
Friday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. Chance of precipitation is 70%.
Friday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Saturday
Rain likely. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Chesterfield MO
 38.65°N 90.6°W (Elev. 466 ft)
Last Update:
4:36 pm CST Feb 28, 2026
Forecast Valid:
7pm CST Feb 28, 2026-6pm CST Mar 7, 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