National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Hazardous Weather Conditions

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 13ft.

Fair

84°F

29°C

Humidity 77%
Wind Speed E 9 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 12 Oct 11:53 pm EDT
Extended Forecast for

4 Miles N Big Pine Key FL

  • Overnight

    Overnight: A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Northeast wind around 5 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 88. Northeast wind 5 to 10 mph.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Mostly clear, with a low around 77. Northeast wind around 10 mph. Chance of precipitation is 20%.

    Low: 77 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Northeast wind around 10 mph. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly clear, with a low around 79. East wind around 10 mph. Chance of precipitation is 30%.

    Low: 79 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms. Sunny, with a high near 89. Chance of precipitation is 40%.

    High: 89 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly clear, with a low around 79. Chance of precipitation is 30%.

    Low: 79 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 78. Chance of precipitation is 30%.

    Low: 78 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Northeast wind around 5 mph. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 88. Northeast wind 5 to 10 mph.
Tuesday Night
A slight chance of showers. Mostly clear, with a low around 77. Northeast wind around 10 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Northeast wind around 10 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 79. East wind around 10 mph. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Sunny, with a high near 89. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 79. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 78. Chance of precipitation is 30%.
Saturday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 88. Chance of precipitation is 70%.
Saturday Night
Showers and possibly a thunderstorm. Low around 77. Chance of precipitation is 80%.
Sunday
Showers and possibly a thunderstorm. High near 87. Windy. Chance of precipitation is 80%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 77. Windy. Chance of precipitation is 70%.
Monday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 87. Windy. Chance of precipitation is 70%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Big Pine Key FL
 24.72°N 81.37°W (Elev. 0 ft)
Last Update:
11:15 pm EDT Oct 12, 2026
Forecast Valid:
12am EDT Oct 13, 2026-6pm EDT Oct 19, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation