Summer Heat In Multiple Spots

A large dome of high pressure is expected to deliver summer heat with humidity in multiple sections of the country to start off the week. Excessive heat warnings and heat advisories are in effect across the south-central Plains, Mid to Lower Mississippi Valley and from the Mid-Atlantic into the Northeast. This includes the cities of New York, Philadelphia, Dallas, Oklahoma City and Kansas City. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Fair

79°F

26°C

Humidity 77%
Wind Speed S 6 mph
Barometer 29.95 in (1012.9 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 19 Aug 12:51 am CDT
Extended Forecast for

Saint Louis MO

  • Overnight

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

    Mostly Clear

    Low: 75 °F

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 3pm.  Mostly sunny, with a high near 92. Heat index values as high as 101. Southwest wind 3 to 5 mph.

    Mostly Sunny
    then Chance
    T-storms

    High: 92 °F

  • Monday
    Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Mostly clear, with a low around 78. Southeast wind 3 to 5 mph.

    Chance
    T-storms then
    Mostly Clear

    Low: 78 °F

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny and hot, with a high near 97. Heat index values as high as 110. Light and variable wind becoming southwest around 6 mph in the morning.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 97 °F

  • Tuesday
    Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 77. Southwest wind 3 to 6 mph.

    Slight Chance
    T-storms

    Low: 77 °F

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 92.

    Chance
    T-storms

    High: 92 °F

  • Wednesday
    Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 72.

    Chance
    T-storms

    Low: 72 °F

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 84.

    Chance
    T-storms

    High: 84 °F

  • Thursday
    Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 67.

    Partly Cloudy
    then Slight
    Chance
    T-storms

    Low: 67 °F

Detailed Forecast

Overnight
Mostly clear, with a low around 75. Light south wind.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 92. Heat index values as high as 101. Southwest wind 3 to 5 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 78. Southeast wind 3 to 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 110. Light and variable wind becoming southwest around 6 mph in the morning.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. Southwest wind 3 to 6 mph.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 92.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 67.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
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)
12:59 am CDT Aug 19, 2019
1am CDT Aug 19, 2019-6pm CDT Aug 25, 2019
 
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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