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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

70°F

21°C

Humidity 85%
Wind Speed NW 9 mph
Barometer 29.81 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 21 Jun 11:35 pm CDT
Extended Forecast for

4 Miles NE Chesterfield IL

  • Tonight

    Tonight: Cloudy, with a low around 62. Northwest wind around 11 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 74. North wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 74 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 54. North wind around 6 mph becoming calm in the evening.

    Low: 54 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Sunny, with a high near 79. Light east wind.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 59. Light east wind.

    Low: 59 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 62. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    Showers

Detailed Forecast

Tonight
Cloudy, with a low around 62. Northwest wind around 11 mph, with gusts as high as 20 mph.
Monday
Mostly cloudy, with a high near 74. North wind 9 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 54. North wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 79. Light east wind.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 59. Light east wind.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 62. Chance of precipitation is 20%.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Sunday
Mostly sunny, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Chesterfield IL
 39.3°N 90.03°W (Elev. 571 ft)
Last Update:
11:26 pm CDT Jun 21, 2026
Forecast Valid:
11pm CDT Jun 21, 2026-6pm CDT Jun 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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