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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

44°F

7°C

Humidity 63%
Wind Speed N 3 mph
Barometer 29.97 in (1014.7 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 27 Feb 11:53 pm CST
Extended Forecast for

4 Miles NNW Freeburg IL

  • Overnight

    Overnight: Mostly clear, with a low around 38. North wind 5 to 8 mph.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of rain, mainly after 5pm. Increasing clouds, with a high near 63. Northeast wind 6 to 8 mph becoming south in the afternoon.

    High: 63 °F

    Mostly Sunny
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 7pm. Partly cloudy, with a low around 31. South wind 6 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.

    Low: 31 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 45. North wind 9 to 11 mph.

    High: 45 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Snow likely before 3am, then rain and snow likely. Cloudy, with a low around 32. Northeast wind around 10 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 32 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Monday

    Monday: A chance of rain and snow before 9am, then a chance of rain. Cloudy, with a high near 42. Chance of precipitation is 40%.

    High: 42 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain. Low around 38. Chance of precipitation is 80%.

    Low: 38 °F

    Rain

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm. High near 60. Chance of precipitation is 90%.

    High: 60 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, with thunderstorms also possible after midnight. Low around 50. Chance of precipitation is 80%.

    Low: 50 °F

    Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 38. North wind 5 to 8 mph.
Saturday
A 30 percent chance of rain, mainly after 5pm. Increasing clouds, with a high near 63. Northeast wind 6 to 8 mph becoming south in the afternoon.
Saturday Night
A 20 percent chance of rain before 7pm. Partly cloudy, with a low around 31. South wind 6 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Sunday
Increasing clouds, with a high near 45. North wind 9 to 11 mph.
Sunday Night
Snow likely before 3am, then rain and snow likely. Cloudy, with a low around 32. Northeast wind around 10 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Monday
A chance of rain and snow before 9am, then a chance of rain. Cloudy, with a high near 42. Chance of precipitation is 40%.
Monday Night
Rain. Low around 38. Chance of precipitation is 80%.
Tuesday
Rain and possibly a thunderstorm. High near 60. Chance of precipitation is 90%.
Tuesday Night
Rain, with thunderstorms also possible after midnight. Low around 50. Chance of precipitation is 80%.
Wednesday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 64. Chance of precipitation is 70%.
Wednesday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Thursday
A 50 percent chance of rain. Partly sunny, with a high near 68.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 56.
Friday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Freeburg IL
 38.48°N 89.93°W (Elev. 551 ft)
Last Update:
12:25 am CST Feb 28, 2026
Forecast Valid:
12am CST Feb 28, 2026-6pm CST Mar 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation