Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

27°F

-3°C

Humidity 46%
Wind Speed NW 17 G 30 mph
Barometer 30.13 in (1020.5 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 14 Jan 9:53 pm CST
Extended Forecast for

Sappington MO

  • Tonight

    Tonight: Clear, with a low around 17. Northwest wind 7 to 10 mph, with gusts as high as 22 mph.

    Low: 17 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 36. Northwest wind around 6 mph becoming south in the afternoon.

    High: 36 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 29. South wind 5 to 9 mph becoming west after midnight.

    Low: 29 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 44. West wind 9 to 14 mph, with gusts as high as 26 mph.

    High: 44 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow showers.  Mostly cloudy, with a low around 21. West wind around 11 mph, with gusts as high as 23 mph.

    Low: 21 °F

    Slight Chance
    Snow Showers

  • Saturday

    Saturday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 9.

    Low: 9 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 17. Northwest wind 7 to 10 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 36. Northwest wind around 6 mph becoming south in the afternoon.
Thursday Night
Mostly cloudy, with a low around 29. South wind 5 to 9 mph becoming west after midnight.
Friday
Partly sunny, with a high near 44. West wind 9 to 14 mph, with gusts as high as 26 mph.
Friday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 21. West wind around 11 mph, with gusts as high as 23 mph.
Saturday
Partly sunny, with a high near 26.
Saturday Night
Partly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 26.
Sunday Night
Partly cloudy, with a low around 17.
M.L.King Day
Mostly sunny, with a high near 27.
Monday Night
Mostly clear, with a low around 12.
Tuesday
Sunny, with a high near 34.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Mostly sunny, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
Sappington MO
 38.53°N 90.38°W (Elev. 604 ft)
9:31 pm CST Jan 14, 2026
10pm CST Jan 14, 2026-6pm CST Jan 21, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database