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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.

Mostly Cloudy

82°F

28°C

Humidity 55%
Wind Speed SW 9 mph
Barometer 29.92 in (1012.0 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 18 Aug 7:51 pm CDT
Extended Forecast for

Maryland Heights MO

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly between midnight and 5am.  Mostly cloudy, with a low around 69. Southwest wind 3 to 6 mph.

    Chance
    T-storms

    Low: 69 °F

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 8am.  Sunny, with a high near 89. Northwest wind 3 to 5 mph.

    Slight Chance
    T-storms then
    Sunny

    High: 89 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 72. Light and variable wind.

    Mostly Clear

    Low: 72 °F

  • Sunday

    Sunday: Sunny, with a high near 94. Calm wind becoming south around 5 mph in the afternoon.

    Sunny

    High: 94 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm  after midnight.

    Partly Cloudy

    Low: 74 °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 2pm.  Partly sunny, with a high near 89. Chance of precipitation is 70%.

    T-storms
    Likely

    High: 89 °F

  • Tuesday
    Night

    Tuesday Night: Showers and thunderstorms likely, mainly before 8pm.  Mostly cloudy, with a low around 67. Chance of precipitation is 70%.

    T-storms
    Likely then
    Chance
    T-storms

    Low: 67 °F

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly between midnight and 5am. Mostly cloudy, with a low around 69. Southwest wind 3 to 6 mph.
Saturday
A 20 percent chance of showers and thunderstorms before 8am. Sunny, with a high near 89. Northwest wind 3 to 5 mph.
Saturday Night
Mostly clear, with a low around 72. Light and variable wind.
Sunday
Sunny, with a high near 94. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 93.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 70%.
Tuesday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 65.
Friday
Mostly sunny, with a high near 81.
Click Map For Forecast
Point Forecast:
Maryland Heights MO
 38.72°N 90.48°W (Elev. 440 ft)
6:12 pm CDT Aug 18, 2017
8pm CDT Aug 18, 2017-6pm CDT Aug 25, 2017
 
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