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

69°F

21°C

Humidity 25%
Wind Speed S 12 G 23 mph
Barometer 30.13 in (1020.4 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 29 Mar 1:53 pm CDT
Extended Forecast for

Lemay MO

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 71. South wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 71 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. South wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 84. Southwest wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65. South wind around 11 mph, with gusts as high as 24 mph.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain and thunderstorms after 1pm. Mostly sunny, with a high near 86. South wind 11 to 15 mph, with gusts as high as 28 mph.

    High: 86 °F

    Mostly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1am. Low around 58. Chance of precipitation is 80%.

    Low: 58 °F

    Chance Rain
    then Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. High near 70. Chance of precipitation is 80%.

    High: 70 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain and possibly a thunderstorm. Low around 55. Chance of precipitation is 90%.

    Low: 55 °F

    Rain

  • Thursday

    Thursday: Rain. High near 68. Chance of precipitation is 80%.

    High: 68 °F

    Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 71. South wind 10 to 13 mph, with gusts as high as 21 mph.
Tonight
Mostly cloudy, with a low around 58. South wind 7 to 9 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 84. Southwest wind 9 to 14 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 65. South wind around 11 mph, with gusts as high as 24 mph.
Tuesday
A 30 percent chance of rain and thunderstorms after 1pm. Mostly sunny, with a high near 86. South wind 11 to 15 mph, with gusts as high as 28 mph.
Tuesday Night
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1am. Low around 58. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm. High near 70. Chance of precipitation is 80%.
Wednesday Night
Rain and possibly a thunderstorm. Low around 55. Chance of precipitation is 90%.
Thursday
Rain. High near 68. Chance of precipitation is 80%.
Thursday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 75.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 57.
Saturday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lemay MO
 38.53°N 90.29°W (Elev. 456 ft)
Last Update:
1:26 pm CDT Mar 29, 2026
Forecast Valid:
2pm CDT Mar 29, 2026-6pm CDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation