Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Overcast

74°F

23°C

Humidity 91%
Wind Speed NE 8 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 9 Dec 5:53 am EST
Extended Forecast for

Lower Matecumbe Beach FL

  • Overnight

    Overnight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. North wind around 10 mph.  Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely after 7am.  Mostly cloudy, with a high near 77. North wind around 15 mph.  Chance of precipitation is 70%.

    High: 77 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers.  Mostly cloudy, with a low around 72. Northeast wind 10 to 15 mph.  Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers.  Mostly sunny, with a high near 77. Northeast wind around 5 mph becoming calm.  Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers.  Partly cloudy, with a low around 66. Northwest wind 5 to 10 mph.  Chance of precipitation is 10%.

    Low: 66 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers.  Mostly cloudy, with a low around 73. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. North wind around 10 mph. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms, then showers likely after 7am. Mostly cloudy, with a high near 77. North wind around 15 mph. Chance of precipitation is 70%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 72. Northeast wind 10 to 15 mph. Chance of precipitation is 40%.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 77. Northeast wind around 5 mph becoming calm. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 66. Northwest wind 5 to 10 mph. Chance of precipitation is 10%.
Thursday
Sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 69.
Friday
Mostly sunny, with a high near 77.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 73. Chance of precipitation is 20%.
Saturday
A chance of showers. Mostly cloudy, with a high near 78. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Sunday
A chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 71. Chance of precipitation is 20%.
Monday
A slight chance of showers. Mostly sunny, with a high near 77. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Lower Matecumbe Beach FL
 24.85°N 80.73°W (Elev. 0 ft)
5:15 am EST Dec 9, 2025
5am EST Dec 9, 2025-6pm EST Dec 15, 2025
 
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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