Port Saint John, FL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Port Saint John, FL in one place.
Mostly sunny, with a high near 78. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for Port Saint John, FL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 9, 2026 2:10 PM EDT.
The active forecast window currently covers Apr 10 to Apr 15, 2026 for Port Saint John, FL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 2:10 PM EDT
- Forecast office
- MLB
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Saint John
Tuesday looks like the warmest upcoming period in Port Saint John at 83 degrees F.
Friday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Friday at about 10 to 15 mph NE.
The forecast from Apr 10 through Apr 15 stays mostly dry.
Forecast Details
- Last updated
- Apr 9, 2026 2:10 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- MLB
- Radar station
- KMLB
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 63. Northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Mostly sunny, with a high near 79. East northeast wind 5 to 15 mph, with gusts as high as 25 mph.
Mostly clear, with a low around 64. East northeast wind 5 to 10 mph.
Sunny, with a high near 80. East wind 5 to 15 mph, with gusts as high as 25 mph.
Mostly clear, with a low around 65. East wind 5 to 15 mph, with gusts as high as 20 mph.
Mostly sunny, with a high near 81. East wind 5 to 15 mph, with gusts as high as 20 mph.
Partly cloudy, with a low around 65. East wind 5 to 10 mph.
Mostly sunny, with a high near 83. East southeast wind 5 to 10 mph.
Mostly clear, with a low around 64. East southeast wind 5 to 10 mph.
Sunny, with a high near 83. East southeast wind 0 to 10 mph.
Mostly clear, with a low around 64. East southeast wind 5 to 10 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Mostly Sunny
|
78°F |
10 to 15 mph
NE
|
|
Friday Night
Apr 10
|
Partly Cloudy
|
63°F |
5 to 15 mph
NE
|
|
Saturday
Apr 11
|
Mostly Sunny
|
79°F |
5 to 15 mph
ENE
|
|
Saturday Night
Apr 11
|
Mostly Clear
|
64°F |
5 to 10 mph
ENE
|
|
Sunday
Apr 12
|
Sunny
|
80°F |
5 to 15 mph
E
|
|
Sunday Night
Apr 12
|
Mostly Clear
|
65°F |
5 to 15 mph
E
|
|
Monday
Apr 13
|
Mostly Sunny
|
81°F |
5 to 15 mph
E
|
|
Monday Night
Apr 13
|
Partly Cloudy
|
65°F |
5 to 10 mph
E
|
|
Tuesday
Apr 14
|
Mostly Sunny
|
83°F |
5 to 10 mph
ESE
|
|
Tuesday Night
Apr 14
|
Mostly Clear
|
64°F |
5 to 10 mph
ESE
|
|
Wednesday
Apr 15
|
Sunny
|
83°F |
0 to 10 mph
ESE
|
|
Wednesday Night
Apr 15
|
Mostly Clear
|
64°F |
5 to 10 mph
ESE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Saint John.
