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

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

63°F

17°C

Humidity 31%
Wind Speed E 6 mph
Barometer 29.97 in (1014.7 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 28 Feb 4:54 pm CST
Extended Forecast for

3 Miles NNW Elsberry MO

  • This Afternoon

    This Afternoon: A 20 percent chance of rain and thunderstorms. Mostly sunny, with a high near 63. North wind around 6 mph.

    High: 63 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 30. North wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 45. Northeast wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 45 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Snow likely before midnight, then rain and snow likely. Cloudy, with a low around 32. East wind around 7 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Monday

    Monday: A 40 percent chance of rain, mainly before noon. Cloudy, with a high near 44. Southeast wind around 8 mph.

    High: 44 °F

    Chance Rain

  • Monday Night

    Monday Night: Rain, with thunderstorms also possible after 3am. Low around 38. Chance of precipitation is 90%.

    Low: 38 °F

    Rain

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm. High near 61. Chance of precipitation is 90%.

    High: 61 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 49. Chance of precipitation is 90%.

    Low: 49 °F

    Rain

  • Wednesday

    Wednesday: Rain likely and possibly a thunderstorm. Cloudy, with a high near 64. Chance of precipitation is 70%.

    High: 64 °F

    Rain Likely

Detailed Forecast

This Afternoon
A 20 percent chance of rain and thunderstorms. Mostly sunny, with a high near 63. North wind around 6 mph.
Tonight
Mostly clear, with a low around 30. North wind 7 to 11 mph, with gusts as high as 22 mph.
Sunday
Increasing clouds, with a high near 45. Northeast wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Snow likely before midnight, then rain and snow likely. Cloudy, with a low around 32. East wind around 7 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday
A 40 percent chance of rain, mainly before noon. Cloudy, with a high near 44. Southeast wind around 8 mph.
Monday Night
Rain, with thunderstorms also possible after 3am. Low around 38. Chance of precipitation is 90%.
Tuesday
Rain and possibly a thunderstorm. High near 61. Chance of precipitation is 90%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 49. Chance of precipitation is 90%.
Wednesday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 64. Chance of precipitation is 70%.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Thursday
Rain likely. Partly sunny, with a high near 69. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of rain and thunderstorms. Partly cloudy, with a low around 52.
Friday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Friday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Saturday
Rain likely. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Elsberry MO
 39.21°N 90.8°W (Elev. 509 ft)
Last Update:
4:36 pm CST Feb 28, 2026
Forecast Valid:
5pm CST Feb 28, 2026-6pm CST Mar 7, 2026
 
Forecast Discussion
 
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Additional Resources

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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