National Weather Service forecast

Port St. John, Florida Weather

72°Overnight: Partly Cloudy
Wind E 5 mph

Port St. John 7-Day Forecast

  1. Overnight
    72°F
    Partly Cloudy
    3% chance of precipitation

    Partly cloudy, with a low around 72. East wind around 5 mph.

  2. Wednesday
    84°F
    Mostly Sunny
    4% chance of precipitation

    Mostly sunny. High near 84, with temperatures falling to around 80 in the afternoon. East southeast wind 5 to 10 mph.

  3. Wednesday Night
    70°F
    Partly Cloudy
    3% chance of precipitation

    Partly cloudy, with a low around 70. East northeast wind 0 to 5 mph.

  4. Thursday
    85°F
    Sunny
    5% chance of precipitation

    Sunny, with a high near 85. East northeast wind 0 to 5 mph.

  5. Thursday Night
    68°F
    Mostly Clear
    1% chance of precipitation

    Mostly clear, with a low around 68. Northeast wind 0 to 5 mph.

  6. Friday
    86°F
    Sunny
    6% chance of precipitation

    Sunny, with a high near 86. North wind 0 to 5 mph.

  7. Friday Night
    68°F
    Partly Cloudy
    6% chance of precipitation

    Partly cloudy, with a low around 68. Southwest wind 0 to 5 mph.

  8. Saturday
    83°F
    Sunny
    2% chance of precipitation

    Sunny, with a high near 83. North northwest wind around 5 mph.

  9. Saturday Night
    63°F
    Mostly Clear
    2% chance of precipitation

    Mostly clear, with a low around 63. North wind 0 to 5 mph.

  10. Sunday
    81°F
    Sunny
    5% chance of precipitation

    Sunny, with a high near 81. North wind around 5 mph.

  11. Sunday Night
    62°F
    Partly Cloudy
    5% chance of precipitation

    Partly cloudy, with a low around 62. North wind around 5 mph.

  12. Monday
    75°F
    Mostly Sunny then Slight Chance Rain Showers
    15% chance of precipitation

    A slight chance of rain showers after 1pm. Mostly sunny, with a high near 75. North wind 5 to 10 mph. Chance of precipitation is 20%.

  13. Monday Night
    61°F
    Slight Chance Rain Showers then Partly Cloudy
    15% chance of precipitation

    A slight chance of rain showers before 7pm. Partly cloudy, with a low around 61. North northeast wind around 5 mph. Chance of precipitation is 20%.

  14. Tuesday
    78°F
    Slight Chance Rain Showers
    19% chance of precipitation

    A slight chance of rain showers after 7am. Mostly sunny, with a high near 78. North northeast wind 5 to 10 mph.

Issued by the National Weather Service (MLB office), updated .

Port St. John Hourly Forecast

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About Port St. John

Population (2020 Census)
23,474
Coordinates
28.476, -80.810
Elevation
23 ft
NWS forecast office
MLB
Time zone
America/New York
Sunrise today
6:37 AM EST
Sunset today
5:36 PM EST
Daylight today
10 h 59 min

Port St. John Weather Questions

What is the weather forecast for Port St. John, Florida?

Overnight: Partly cloudy, with a low around 72. East wind around 5 mph. Wednesday: Mostly sunny. High near 84, with temperatures falling to around 80 in the afternoon. East southeast wind 5 to 10 mph.

Will it rain or snow in Port St. John this week?

Not much. The highest chance of precipitation in the 7-day forecast is 19%, Tuesday.

How warm and how cold will it get in Port St. John this week?

The warmest day is Friday, with a high near 86°F. The coldest night is Monday Night, with a low near 61°F.

What time are sunrise and sunset in Port St. John today?

Sunrise is at 6:37 AM EST and sunset is at 5:36 PM EST, for 10 h 59 min of daylight.

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