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

33°F

1°C

Humidity 82%
Wind Speed E 3 mph
Barometer 29.86 in (1011.2 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 26 Feb 6:53 am CST
Extended Forecast for

Festus MO

  • Today

    Today: Sunny, with a high near 59. Southeast wind 5 to 7 mph becoming calm in the afternoon.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 36. Calm wind.

    Low: 36 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 76. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 22 mph.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. Southwest wind around 5 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 70. Calm wind becoming southeast 5 to 7 mph in the morning.

    High: 70 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Partly cloudy, with a low around 31.

    Low: 31 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A chance of rain before noon, then rain and snow likely. Cloudy, with a high near 42. Chance of precipitation is 60%.

    High: 42 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Rain and snow. Low around 28. Chance of precipitation is 80%.

    Low: 28 °F

    Rain/Snow

  • Monday

    Monday: A chance of rain and snow before noon, then a slight chance of rain. Cloudy, with a high near 43. Chance of precipitation is 30%.

    High: 43 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 59. Southeast wind 5 to 7 mph becoming calm in the afternoon.
Tonight
Clear, with a low around 36. Calm wind.
Friday
Sunny, with a high near 76. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Friday Night
Mostly clear, with a low around 41. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 70. Calm wind becoming southeast 5 to 7 mph in the morning.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 31.
Sunday
A chance of rain before noon, then rain and snow likely. Cloudy, with a high near 42. Chance of precipitation is 60%.
Sunday Night
Rain and snow. Low around 28. Chance of precipitation is 80%.
Monday
A chance of rain and snow before noon, then a slight chance of rain. Cloudy, with a high near 43. Chance of precipitation is 30%.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 27.
Tuesday
A 50 percent chance of rain. Cloudy, with a high near 47.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 31.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Festus MO
 38.22°N 90.39°W (Elev. 446 ft)
Last Update:
4:51 am CST Feb 26, 2026
Forecast Valid:
7am CST Feb 26, 2026-6pm CST Mar 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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