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.

A Few Clouds

76°F

24°C

Humidity 42%
Wind Speed N 3 mph
Barometer 30.22 in (1022.5 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 23 Jun 10:51 am CDT
Extended Forecast for

Black Jack MO

  • Today

    Today: Sunny, with a high near 81. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 64. East wind 3 to 5 mph.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. Southeast wind 5 to 7 mph becoming southwest in the afternoon.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67. Southwest wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 85 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms. Low around 68. Chance of precipitation is 80%.

    Low: 68 °F

    T-storms

  • Friday

    Friday: Showers and thunderstorms. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    T-storms

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 89.

    High: 89 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 81. Calm wind becoming northeast around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 64. East wind 3 to 5 mph.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. Southeast wind 5 to 7 mph becoming southwest in the afternoon.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms. Low around 68. Chance of precipitation is 80%.
Friday
Showers and thunderstorms. High near 82. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 89.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny, with a high near 96.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Black Jack MO
 38.8°N 90.25°W (Elev. 597 ft)
Last Update:
9:46 am CDT Jun 23, 2026
Forecast Valid:
11am CDT Jun 23, 2026-6pm CDT Jun 29, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation