Autumn Temperatures for Eastern Third of the Country; Developing Offshore Coastal Storm

Cooler and less humid conditions for most of the eastern third of the nation as high pressure dominates the weather pattern. Otherwise, rather tranquil weather for most of the nation for the end of the weekend into the start of this week. We continue to monitor a developing coastal storm offshore of the Carolinas; Coastal flooding and beach erosion possible along portions of the Mid-Atlantic. Read More >

Hazardous Weather Conditions

Current conditions at

Key West Naval Air Station (KNQX)

Lat: 24.58°NLon: 81.68°WElev: 3ft.

Mostly Cloudy

84°F

29°C

Humidity 72%
Wind Speed NE 16 mph
Barometer 29.98 in (1015.0 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 18 Oct 2:53 pm EDT
Extended Forecast for

Big Coppitt Key FL

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 83. Northeast wind around 15 mph.  Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm.  Mostly cloudy, with a low around 78. Breezy, with a northeast wind 15 to 20 mph.  Chance of precipitation is 60%.

    Low: 78 °F

    Showers
    Likely and
    Breezy

  • Monday

    Monday: A chance of showers and thunderstorms.  Mostly sunny, with a high near 85. Breezy, with a northeast wind 15 to 20 mph.  Chance of precipitation is 40%.

    High: 85 °F

    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77. Northeast wind around 15 mph.

    Low: 77 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 85. Northeast wind around 15 mph.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers.  Mostly clear, with a low around 76. Breezy.  Chance of precipitation is 10%.

    Low: 76 °F

    Slight Chance
    Showers and
    Breezy

  • Thursday

    Thursday: A slight chance of showers and thunderstorms.  Mostly sunny, with a high near 84. Windy.  Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    T-storms and
    Windy

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. Northeast wind around 15 mph. Chance of precipitation is 70%.
Tonight
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 78. Breezy, with a northeast wind 15 to 20 mph. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Breezy, with a northeast wind 15 to 20 mph. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 77. Northeast wind around 15 mph.
Tuesday
Sunny, with a high near 85. Northeast wind around 15 mph.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Sunny, with a high near 84.
Wednesday Night
A slight chance of showers. Mostly clear, with a low around 76. Breezy. Chance of precipitation is 10%.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Windy. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 76. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Sunny, with a high near 83. Windy. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 76. Windy. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Sunny, with a high near 84. Windy. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

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