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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 >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast

75°F

24°C

Humidity 76%
Wind Speed NW 6 mph
Barometer 29.94 in (1012.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 19 Aug 12:51 am CDT
Extended Forecast for

Saint Louis MO

  • Overnight

    Overnight: Isolated showers and thunderstorms.  Mostly cloudy, with a low around 70. Light southwest wind.  Chance of precipitation is 20%.

    Isolated
    T-storms

    Low: 70 °F

  • Saturday

    Saturday: Sunny, with a high near 89. Northwest wind 3 to 5 mph.

    Sunny

    High: 89 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 73. Light and variable wind.

    Mostly Clear

    Low: 73 °F

  • Sunday

    Sunday: Sunny, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.

    Sunny

    High: 95 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm  in the evening.

    Partly Cloudy

    Low: 75 °F

  • Monday

    Monday: Mostly sunny, with a high near 93.

    Mostly Sunny

    High: 93 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 77.

    Partly Cloudy

    Low: 77 °F

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 1pm.  Partly sunny, with a high near 90. Chance of precipitation is 60%.

    T-storms
    Likely

    High: 90 °F

  • Tuesday
    Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 68.

    Chance
    T-storms

    Low: 68 °F

Detailed Forecast

Overnight
Isolated showers and thunderstorms. Mostly cloudy, with a low around 70. Light southwest wind. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 89. Northwest wind 3 to 5 mph.
Saturday Night
Mostly clear, with a low around 73. Light and variable wind.
Sunday
Sunny, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 93.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 66.
Friday
Mostly sunny, with a high near 81.
Click Map For Forecast
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
12:12 am CDT Aug 19, 2017
1am CDT Aug 19, 2017-6pm CDT Aug 25, 2017
 
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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