Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

72°F

22°C

Humidity 94%
Wind Speed W 3 mph
Barometer 30.20 in (1022.0 mb)
Dewpoint 70°F (21°C)
Visibility 9.00 mi
Last update 17 Sep 6:54 am CDT
Extended Forecast for

Murphy MO

Heat Advisory September 17, 07:31am until September 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 17, 07:31am until September 19, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Today

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 74. Light and variable wind.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms between 1pm and 3pm.  Patchy fog before 8am.  Otherwise, sunny, with a high near 96. Heat index values as high as 105. Light and variable wind.  Chance of precipitation is 20%.

    High: 96 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. Calm wind becoming south around 5 mph after midnight.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 96. Southwest wind 3 to 7 mph.

    High: 96 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm.  Mostly sunny, with a high near 92.

    High: 92 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 97. Heat index values as high as 106. West wind 3 to 6 mph.
Tonight
Mostly clear, with a low around 74. Light and variable wind.
Friday
A slight chance of showers and thunderstorms between 1pm and 3pm. Patchy fog before 8am. Otherwise, sunny, with a high near 96. Heat index values as high as 105. Light and variable wind. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 75. Calm wind becoming south around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 96. Southwest wind 3 to 7 mph.
Saturday Night
Partly cloudy, with a low around 73.
Sunday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 92.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 63.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Murphy MO
 38.49°N 90.49°W (Elev. 597 ft)
5:46 am CDT Sep 17, 2026
7am CDT Sep 17, 2026-6pm CDT Sep 23, 2026
 
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Additional Resources

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