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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Mostly Cloudy

50°F

10°C

Humidity 66%
Wind Speed NA
Barometer 29.87 in (1011.4 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 8 Nov 9:53 pm CST
Extended Forecast for

Affton MO

  • Tonight

    Tonight: Cloudy, with a low around 35. Northwest wind 9 to 16 mph, with gusts as high as 31 mph.

    Low: 35 °F

    Cloudy

  • Sunday

    Sunday: A chance of sprinkles and flurries before 7am, then a chance of flurries. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 34 by 5pm. Northwest wind 14 to 18 mph, with gusts as high as 30 mph.

    High: 39 °F⇓

    Chance
    Sprinkles/Flurries
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A chance of flurries before midnight. Partly cloudy, with a low around 25. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 25 °F

    Chance
    Flurries

  • Monday

    Monday: Sunny, with a high near 40. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27. West wind around 6 mph becoming light and variable.

    Low: 27 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Cloudy, with a low around 35. Northwest wind 9 to 16 mph, with gusts as high as 31 mph.
Sunday
A chance of sprinkles and flurries before 7am, then a chance of flurries. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 34 by 5pm. Northwest wind 14 to 18 mph, with gusts as high as 30 mph.
Sunday Night
A chance of flurries before midnight. Partly cloudy, with a low around 25. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 40. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 27. West wind around 6 mph becoming light and variable.
Veterans Day
Partly sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Affton MO
 38.56°N 90.32°W (Elev. 564 ft)
Last Update:
10:31 pm CST Nov 8, 2025
Forecast Valid:
11pm CST Nov 8, 2025-6pm CST Nov 15, 2025
 
Forecast Discussion
 
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