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

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 >

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

70°F

21°C

Humidity 68%
Wind Speed E 5 mph
Barometer 30.03 in (1016.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 7 Sep 2:54 am CDT
Extended Forecast for

2 Miles SSW Defiance MO

  • Overnight

    Overnight: Mostly cloudy, with a low around 62. Light east wind.

    Low: 62 °F

    Mostly Cloudy

  • Labor Day

    Labor Day: Sunny, with a high near 87. East wind 3 to 7 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. East wind 3 to 5 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 94. Calm wind becoming south around 6 mph.

    High: 94 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. Light south wind.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.

    High: 96 °F

    Sunny then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%.

    Low: 68 °F

    Showers

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 83.

    High: 83 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 62. Light east wind.
Labor Day
Sunny, with a high near 87. East wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 60. East wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 94. Calm wind becoming south around 6 mph.
Tuesday Night
Mostly clear, with a low around 70. Light south wind.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.
Wednesday Night
Showers and possibly a thunderstorm. Low around 68. Chance of precipitation is 80%.
Thursday
A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 61.
Friday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 86.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 67.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Defiance MO
 38.61°N 90.8°W (Elev. 554 ft)
Last Update:
1:26 am CDT Sep 7, 2026
Forecast Valid:
3am CDT Sep 7, 2026-6pm CDT Sep 13, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation