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Heavy rain and flash flooding possible in portions of the Southwest this weekend

An upper-level low in the Southwest U.S. will act as a trigger for thunderstorms this weekend. The area of greatest concern is in New Mexico, southeast Utah and portions of southern Colorado. Storms will be slow moving and could bring several rounds of rain to the same areas. Rainfall amounts may exceed 3 inches in localized areas. Flash Flood Watches are in effect. Read More >

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

86°F

30°C

Humidity 55%
Wind Speed SW 5 mph
Barometer 29.97 in (1013.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 19 Aug 11:51 am CDT
Extended Forecast for

Saint Louis MO

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 91. Light west wind.

    Sunny

    High: 91 °F

  • Tonight

    Tonight: Mostly clear, with a low around 73. Calm wind.

    Mostly Clear

    Low: 73 °F

  • Sunday

    Sunday: Sunny, with a high near 96. Light south wind.

    Sunny

    High: 96 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm  in the evening.

    Partly Cloudy

    Low: 76 °F

  • Monday

    Monday: Mostly sunny, with a high near 94. Calm wind becoming south around 5 mph in the morning.

    Mostly Sunny

    High: 94 °F

  • Monday
    Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 75.

    Mostly Cloudy
    then Chance
    T-storms

    Low: 75 °F

  • Tuesday

    Tuesday: Showers and thunderstorms likely.  Mostly cloudy, with a high near 88. Chance of precipitation is 60%.

    T-storms
    Likely

    High: 88 °F

  • Tuesday
    Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 69.

    Chance
    T-storms

    Low: 69 °F

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    Sunny

    High: 82 °F

Detailed Forecast

This Afternoon
Sunny, with a high near 91. Light west wind.
Tonight
Mostly clear, with a low around 73. Calm wind.
Sunday
Sunny, with a high near 96. Light south wind.
Sunday Night
Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 94. Calm wind becoming south around 5 mph in the morning.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 75.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 88. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 69.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 81.
Click Map For Forecast
Point Forecast:
Saint Louis MO
 38.62°N 90.23°W (Elev. 489 ft)
10:12 am CDT Aug 19, 2017
12pm CDT Aug 19, 2017-6pm CDT Aug 25, 2017
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database