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.

Mostly Cloudy

78°F

26°C

Humidity 76%
Wind Speed W 9 mph
Barometer 29.73 in (1005.7 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 21 Jun 8:51 pm CDT
Extended Forecast for

Castle Point MO

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 63. Southwest wind 7 to 9 mph becoming northwest after midnight.

    Low: 63 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 77. North wind around 10 mph.

    High: 77 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming clear, with a low around 62. North wind 5 to 7 mph becoming calm in the evening.

    Low: 62 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. East wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 85. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69.

    Low: 69 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 63. Southwest wind 7 to 9 mph becoming northwest after midnight.
Monday
Mostly cloudy, with a high near 77. North wind around 10 mph.
Monday Night
Mostly cloudy, then gradually becoming clear, with a low around 62. North wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 65. East wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 85. Chance of precipitation is 30%.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 20%.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castle Point MO
 38.75°N 90.25°W (Elev. 499 ft)
Last Update:
9:11 pm CDT Jun 21, 2026
Forecast Valid:
9pm CDT Jun 21, 2026-6pm CDT Jun 28, 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