Severe Thunderstorms and Heavy Rain Across the Ohio Valley;

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

79°F

26°C

Humidity 74%
Wind Speed SW 9 mph
Barometer 29.97 in (1013.7 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 11 Aug 6:54 am CDT
Extended Forecast for

Pacific MO

Extreme Heat Warning August 11, 07:00am until August 12, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 11, 07:00am until August 12, 08:00pm

    NOW until 8:00pm Wed

    Extreme Heat Warning

  • Today

    High: 97 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 97. Heat index values as high as 110. Calm wind becoming southwest around 5 mph.

    High: 97 °F

    Hot

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 96. Light and variable wind.

    High: 96 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 73.

    Low: 73 °F

    Slight Chance
    T-storms

  • Friday

    Friday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

Detailed Forecast

Today
Mostly sunny and hot, with a high near 97. Heat index values as high as 106. Southwest wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 76. Calm wind.
Wednesday
Sunny and hot, with a high near 97. Heat index values as high as 110. Calm wind becoming southwest around 5 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. Calm wind.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Light and variable wind.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Friday
Mostly sunny, with a high near 94.
Friday Night
Partly cloudy, with a low around 74.
Saturday
Mostly sunny and hot, with a high near 98.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny and hot, with a high near 97.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Pacific MO
 38.48°N 90.75°W (Elev. 486 ft)
6:06 am CDT Aug 11, 2026
7am CDT Aug 11, 2026-6pm CDT Aug 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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