Lowell to Impact Hawaii; Heat Persists in the South-Central U.S.

Hurricane Lowell is forecast to pass west of Kauai`s coastal waters tonight. Impacts such as high surf and heavy rain could impact all of the islands. Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley into this week with limited nighttime relief. Periods of moderate to heavy rainfall will be possible through Tuesday morning in the northern Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

67°F

19°C

Humidity 81%
Wind Speed Calm
Barometer 30.07 in (1017.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 7 Sep 9:54 pm CDT
Extended Forecast for

Spirit Of St. Louis Airport MO

  • Tonight

    Tonight: Mostly clear, with a low around 62. East wind around 5 mph becoming calm  in the evening.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93. Calm wind becoming south around 6 mph in the morning.

    High: 93 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72. Southeast wind 5 to 8 mph.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 96. Heat index values as high as 103. West wind 7 to 9 mph.  Chance of precipitation is 50%.

    High: 96 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm.  Low around 67. Northwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 90%.

    Low: 67 °F

    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 81. Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm.  Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 62. East wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 93. Calm wind becoming south around 6 mph in the morning.
Tuesday Night
Mostly clear, with a low around 72. Southeast wind 5 to 8 mph.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Heat index values as high as 103. West wind 7 to 9 mph. Chance of precipitation is 50%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 67. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%.
Thursday
Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Thursday Night
Partly cloudy, with a low around 61.
Friday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 85.
Friday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.
Saturday
A 40 percent chance of showers before 1pm. Mostly sunny, with a high near 88.
Saturday Night
A 20 percent chance of showers. Mostly clear, with a low around 65.
Sunday
Sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 65.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Spirit Of St. Louis Airport MO
 38.65°N 90.66°W (Elev. 482 ft)
9:26 pm CDT Sep 7, 2026
10pm CDT Sep 7, 2026-6pm CDT Sep 14, 2026
 
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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