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

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Mostly Cloudy with Haze

80°F

27°C

Humidity 71%
Wind Speed NE 8 mph
Barometer 30.03 in (1016.1 mb)
Dewpoint 70°F (21°C)
Visibility 6.00 mi
Heat Index83°F (28°C)
Last update 6 Jul 10:54 am CDT
Extended Forecast for

2 Miles SSW Defiance MO

  • Today

    Today: Partly sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.

    High: 85 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 68. Light north wind.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86. Light northeast wind.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 89. Calm wind.

    High: 89 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 60%.

    Low: 73 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.

    High: 89 °F

    Chance
    T-storms

Detailed Forecast

Today
Partly sunny, with a high near 85. Calm wind becoming north around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 68. Light north wind.
Tuesday
Mostly sunny, with a high near 86. Light northeast wind.
Tuesday Night
Mostly clear, with a low around 67. Calm wind.
Wednesday
Mostly sunny, with a high near 89. Calm wind.
Wednesday Night
Mostly clear, with a low around 71.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92.
Thursday Night
Showers and thunderstorms likely, mainly after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Friday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Defiance MO
 38.61°N 90.8°W (Elev. 554 ft)
Last Update:
10:26 am CDT Jul 6, 2026
Forecast Valid:
11am CDT Jul 6, 2026-6pm CDT Jul 12, 2026
 
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Additional Resources

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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