Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Key West Naval Air Station (KNQX)

Lat: 24.58°NLon: 81.68°WElev: 3ft.

Fair

82°F

28°C

Humidity 79%
Wind Speed SE 3 mph
Barometer 30.08 in (1018.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 17 Aug 11:53 pm EDT
Extended Forecast for

Big Coppitt Key FL

  • Overnight

    Overnight: Mostly clear, with a low around 83. East wind around 5 mph.

    Low: 83 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 84. Northwest wind around 10 mph.

    Low: 84 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 91. North wind 5 to 10 mph.

    High: 91 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 84. Northwest wind around 10 mph.  Chance of precipitation is 10%.

    Low: 84 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers and thunderstorms.  Mostly sunny, with a high near 91. Chance of precipitation is 10%.

    High: 91 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers.  Partly cloudy, with a low around 84. Chance of precipitation is 10%.

    Low: 84 °F

    Slight Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 84.

    Low: 84 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 83. East wind around 5 mph.
Tuesday
Sunny, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 84. Northwest wind around 10 mph.
Wednesday
Mostly sunny, with a high near 91. North wind 5 to 10 mph.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 84. Northwest wind around 10 mph. Chance of precipitation is 10%.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 10%.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 84. Chance of precipitation is 10%.
Friday
Mostly sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 84.
Saturday
Sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 84.
Sunday
Sunny, with a high near 90.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 84. Chance of precipitation is 10%.
Monday
A slight chance of showers. Sunny, with a high near 90. Chance of precipitation is 10%.
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ABOUT THIS FORECAST

 
Point Forecast:
Big Coppitt Key FL
 24.59°N 81.67°W (Elev. 3 ft)
12:15 am EDT Aug 18, 2026
12am EDT Aug 18, 2026-6pm EDT Aug 24, 2026
 
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Additional Resources

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