Western Heat and Monsoon Continues; Increasing Moisture in the East

High pressure continues to produce excessive heat and critical fire weather conditions for portions of the west, with heavy rains and potential for flash flooding associated with the monsoons in the southwest. Meanwhile, a cold front approaching the east coast is increasing the humidity and heat index, and bringing potential for heavy rain and flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

80°F

27°C

Humidity 87%
Wind Speed Calm
Barometer 29.96 in (1013.2 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 16 Jul 1:51 am CDT
Extended Forecast for

Saint Louis MO

  • Overnight

    Overnight: Mostly clear, with a low around 75. Calm wind.

    Mostly Clear

    Low: 75 °F

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm.  Partly sunny, with a high near 90. Calm wind becoming northwest 5 to 9 mph in the morning.

    Chance
    T-storms

    High: 90 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 72. North wind 5 to 7 mph.

    Partly Cloudy

    Low: 72 °F

  • Tuesday

    Tuesday: Sunny, with a high near 88. Northeast wind 5 to 7 mph.

    Sunny

    High: 88 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 71. East wind 3 to 6 mph.

    Partly Cloudy

    Low: 71 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87.

    Mostly Sunny

    High: 87 °F

  • Wednesday
    Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 69.

    Mostly Cloudy
    then Slight
    Chance
    T-storms

    Low: 69 °F

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly before 1pm.  Partly sunny, with a high near 87.

    Chance
    T-storms

    High: 87 °F

  • Thursday
    Night

    Thursday Night: A 30 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 72.

    Mostly Cloudy
    then Chance
    T-storms

    Low: 72 °F

Detailed Forecast

Overnight
Mostly clear, with a low around 75. Calm wind.
Monday
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Partly sunny, with a high near 90. Calm wind becoming northwest 5 to 9 mph in the morning.
Monday Night
Partly cloudy, with a low around 72. North wind 5 to 7 mph.
Tuesday
Sunny, with a high near 88. Northeast wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 71. East wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 87.
Thursday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Click Map For Forecast
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
12:56 am CDT Jul 16, 2018
1am CDT Jul 16, 2018-6pm CDT Jul 22, 2018
 
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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