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

Falls City, Brenner Field Airport (KFNB)

Lat: 40.08°NLon: 95.59°WElev: 984ft.

Fair

65°F

18°C

Humidity 97%
Wind Speed Calm
Barometer 30.05 in (1016.9 mb)
Dewpoint 64°F (18°C)
Visibility 9.00 mi
Last update 21 Aug 6:53 am CDT
Extended Forecast for

Big Lake MO

  • Today

    Today: A slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 88. Light and variable wind becoming west southwest around 5 mph.  Chance of precipitation is 20%.

    High: 88 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers and thunderstorms after 2am.  Partly cloudy, with a low around 66. Calm wind.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers before 8am.  Sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 63. North northeast wind around 5 mph becoming calm  in the evening.

    Low: 63 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 81. Calm wind becoming east southeast around 6 mph.

    High: 81 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 64. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 84. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 85.

    High: 85 °F

    Partly Sunny

Detailed Forecast

Today
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Light and variable wind becoming west southwest around 5 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms before 9pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 66. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A slight chance of showers before 8am. Sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
Increasing clouds, with a low around 63. North northeast wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 81. Calm wind becoming east southeast around 6 mph.
Sunday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 84. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Partly sunny, with a high near 85.
Tuesday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Big Lake MO
 40.08°N 95.35°W (Elev. 850 ft)
4:56 am CDT Aug 21, 2026
7am CDT Aug 21, 2026-6pm CDT Aug 27, 2026
 
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Additional Resources

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