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

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Light Rain

75°F

24°C

Humidity 94%
Wind Speed S 6 mph
Barometer 29.96 in (1013.5 mb)
Dewpoint 73°F (23°C)
Visibility 9.00 mi
Last update 15 Oct 12:51 pm CDT
Extended Forecast for

Crystal Lake Park MO

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 81. Southwest wind around 9 mph. Chance of precipitation is 80%.

    High: 81 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before midnight, then a slight chance of showers between midnight and 4am. Increasing clouds, with a low around 48. Northwest wind 9 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    Low: 48 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers after 4pm. Partly sunny, with a high near 56. Northwest wind 15 to 17 mph, with gusts as high as 29 mph.

    High: 56 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40. North wind 8 to 15 mph, with gusts as high as 23 mph.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 59. North wind around 5 mph becoming calm in the morning.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

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

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 81. Southwest wind around 9 mph. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms likely before midnight, then a slight chance of showers between midnight and 4am. Increasing clouds, with a low around 48. Northwest wind 9 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Friday
A 20 percent chance of showers after 4pm. Partly sunny, with a high near 56. Northwest wind 15 to 17 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 40. North wind 8 to 15 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 59. North wind around 5 mph becoming calm in the morning.
Saturday Night
Clear, with a low around 39.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 42.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake Park MO
 38.62°N 90.43°W (Elev. 597 ft)
Last Update:
11:21 am CDT Oct 15, 2026
Forecast Valid:
1pm CDT Oct 15, 2026-6pm CDT Oct 21, 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