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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

93°F

34°C

Humidity 58%
Wind Speed Vrbl 5 mph
Barometer 30.05 in (1017.0 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index106°F (41°C)
Last update 17 Aug 11:53 am CDT
Extended Forecast for

4 Miles SE Murphy MO

Heat Advisory August 17, 12:24pm until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 17, 12:24pm until August 18, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 96 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Isolated showers and thunderstorms before 10pm. Partly cloudy, with a low around 78. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 78 °F

    Isolated
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Scattered showers and thunderstorms, mainly after 4pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 107. Southeast wind 3 to 5 mph. Chance of precipitation is 30%.

    High: 97 °F

    Mostly Sunny
    then
    Scattered
    T-storms

  • Monday Night

    Monday Night: Scattered showers and thunderstorms before 7pm. Partly cloudy, with a low around 75. Light and variable wind. Chance of precipitation is 30%.

    Low: 75 °F

    Scattered
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 96. Calm wind becoming west around 5 mph in the afternoon.

    High: 96 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 96. Heat index values as high as 105. East wind 5 to 7 mph. Chance of precipitation is 40%.
Tonight
Isolated showers and thunderstorms before 10pm. Partly cloudy, with a low around 78. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Monday
Scattered showers and thunderstorms, mainly after 4pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 107. Southeast wind 3 to 5 mph. Chance of precipitation is 30%.
Monday Night
Scattered showers and thunderstorms before 7pm. Partly cloudy, with a low around 75. Light and variable wind. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 96. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72.
Wednesday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 68.
Friday
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 68.
Saturday
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:
4 Miles SE Murphy MO
 38.47°N 90.44°W (Elev. 492 ft)
Last Update:
11:21 am CDT Aug 17, 2025
Forecast Valid:
12pm CDT Aug 17, 2025-6pm CDT Aug 23, 2025
 
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