Winter Weather in the Eastern U.S.; Heavy Rains Begin Across the Southern Plains into the Ohio Valley

A wintry mix may impact travel across portions of the Mid-Atlantic through the morning and the Northeast U.S. through Tuesday. Heavy rain and thunderstorms may cause a flooding threat across the Southern Plains into the Ohio Valley beginning Tuesday. Fire weather concerns will continue across portions of the central and southern High Plains through Wednesday. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

74°F

23°C

Humidity 85%
Wind Speed NE 12 mph
Barometer 30.09 in (1018.7 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 3 Mar 3:53 am EST
Extended Forecast for

Big Pine Key FL

  • Overnight

    Overnight: Partly cloudy, with a low around 71. East wind around 15 mph.

    Low: 71 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers before 7am.  Sunny, with a high near 81. East wind around 15 mph.  Chance of precipitation is 10%.

    High: 81 °F

    Slight Chance
    Showers then
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72. East wind around 15 mph.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81. East wind around 15 mph.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers.  Partly cloudy, with a low around 72. East wind around 15 mph.  Chance of precipitation is 10%.

    Low: 72 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers.  Mostly sunny, with a high near 82. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers.  Partly cloudy, with a low around 72. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers.  Mostly sunny, with a high near 82. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers.  Partly cloudy, with a low around 72. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 71. East wind around 15 mph.
Tuesday
A slight chance of showers before 7am. Sunny, with a high near 81. East wind around 15 mph. Chance of precipitation is 10%.
Tuesday Night
Partly cloudy, with a low around 72. East wind around 15 mph.
Wednesday
Mostly sunny, with a high near 81. East wind around 15 mph.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 72. East wind around 15 mph. Chance of precipitation is 10%.
Thursday
A slight chance of showers. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 20%.
Friday
A slight chance of showers. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 20%.
Saturday
A slight chance of showers. Mostly sunny, with a high near 82. Chance of precipitation is 10%.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 71. Chance of precipitation is 20%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 82. Chance of precipitation is 10%.
Sunday Night
A slight chance of showers. Mostly clear, with a low around 71. Chance of precipitation is 20%.
Monday
A slight chance of showers. Mostly sunny, with a high near 82. Chance of precipitation is 10%.
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ABOUT THIS FORECAST

 
Point Forecast:
Big Pine Key FL
 24.68°N 81.35°W (Elev. 3 ft)
3:15 am EST Mar 3, 2026
4am EST Mar 3, 2026-6pm EDT Mar 9, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database