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 with Haze

77°F

25°C

Humidity 85%
Wind Speed S 7 mph
Barometer 30.02 in (1015.6 mb)
Dewpoint 72°F (22°C)
Visibility 6.00 mi
Heat Index78°F (26°C)
Last update 9 Aug 7:54 am CDT
Extended Forecast for

Murphy MO

Extreme Heat Warning August 9, 12:00pm until August 12, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: Mostly sunny, with a high near 94. Heat index values as high as 105. South wind 3 to 8 mph.

    High: 94 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 77. South wind 7 to 9 mph.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 97. Heat index values as high as 109. Southwest wind around 7 mph.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 78. South wind 5 to 8 mph.

    Low: 78 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97. Southwest wind around 7 mph.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 78.

    Low: 78 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 88. Chance of precipitation is 60%.

    High: 88 °F

    T-storms
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 94. Heat index values as high as 105. South wind 3 to 8 mph.
Tonight
Mostly clear, with a low around 77. South wind 7 to 9 mph.
Monday
Mostly sunny and hot, with a high near 97. Heat index values as high as 109. Southwest wind around 7 mph.
Monday Night
Partly cloudy, with a low around 78. South wind 5 to 8 mph.
Tuesday
Sunny and hot, with a high near 97. Southwest wind around 7 mph.
Tuesday Night
Partly cloudy, with a low around 78.
Wednesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 94.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Thursday
Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Murphy MO
 38.49°N 90.49°W (Elev. 597 ft)
Last Update:
8:01 am CDT Aug 9, 2026
Forecast Valid:
8am CDT Aug 9, 2026-6pm CDT Aug 15, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation