Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

71°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 30.05 in (1016.7 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 20 Aug 9:54 pm CDT
Extended Forecast for

Pacific MO

  • Tonight

    Tonight: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am.  Otherwise, sunny, with a high near 86. Calm wind.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm.  Mostly sunny, with a high near 84. Light northwest wind.  Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am.  Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after 1pm.  Mostly sunny, with a high near 80. Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 63. Calm wind.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 86. Calm wind.
Friday Night
Mostly clear, with a low around 66. Calm wind.
Saturday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 84. Light northwest wind. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 62. Calm wind.
Sunday
Sunny, with a high near 81.
Sunday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60.
Monday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 80. Chance of precipitation is 20%.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.
Tuesday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 85.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 66.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Pacific MO
 38.48°N 90.75°W (Elev. 486 ft)
9:21 pm CDT Aug 20, 2026
9pm CDT Aug 20, 2026-6pm CDT Aug 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database