National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

88°F

31°C

Humidity 66%
Wind Speed Vrbl 5 mph
Barometer 30.09 in (1017.9 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 2 Jul 9:54 am CDT
Extended Forecast for

2 Miles SW Spirit Of St. Louis Airport MO

Extreme Heat Warning July 2, 10:42am until July 3, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 2, 10:42am until July 3, 10:00pm

    NOW until 10:00pm Fri

    Extreme Heat Warning

  • Today

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming clear, with a low around 77. South wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 95. Heat index values as high as 105. Calm wind becoming southwest around 5 mph in the morning.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Mostly clear, with a low around 75. Light south wind. Chance of precipitation is 20%.

    Low: 75 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Independence Day

    Independence Day: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Light southwest wind.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.

    Low: 74 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 94. Heat index values as high as 105. South wind 3 to 6 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming clear, with a low around 77. South wind around 5 mph becoming calm in the evening.
Friday
A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 95. Heat index values as high as 105. Calm wind becoming southwest around 5 mph in the morning.
Friday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 75. Light south wind. Chance of precipitation is 20%.
Independence Day
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Light southwest wind.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Sunday Night
Partly cloudy, with a low around 73.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Spirit Of St. Louis Airport MO
 38.63°N 90.66°W (Elev. 696 ft)
Last Update:
8:21 am CDT Jul 2, 2026
Forecast Valid:
10am CDT Jul 2, 2026-6pm CDT Jul 8, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation