Port Saint John, FL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Port Saint John, FL in one place.
Showers and thunderstorms. Mostly cloudy, with a high near 82. Northeast wind 5 to 10 mph. Chance of precipitation is 80%.
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: Oct 6, 2026 7:00 PM EDT.
The active forecast window currently covers Oct 8 to Oct 12, 2026 for Port Saint John, FL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 8 to Oct 12, 2026
- Latest sync
- Oct 6, 2026 7:00 PM EDT
- Forecast office
- MLB
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Saint John
Sunday looks like the warmest upcoming period in Port Saint John at 88 degrees F.
Monday Night is the coolest period ahead with temperatures near 71 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph ESE.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 6, 2026 7:00 PM EDT
- Coverage
- 5 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
Showers and thunderstorms. Mostly cloudy, with a low around 73. Northeast wind 5 to 10 mph. Chance of precipitation is 80%.
Showers and thunderstorms. Partly sunny, with a high near 85. East northeast wind 5 to 10 mph. Chance of precipitation is 80%.
Showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 75. East wind around 10 mph. Chance of precipitation is 80%.
Showers and thunderstorms. Partly sunny, with a high near 86. East southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Showers and thunderstorms likely. Partly sunny, with a high near 88. Southeast wind 10 to 15 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 74. South southeast wind 0 to 10 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 88. South southwest wind around 5 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Southwest wind 0 to 5 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 8
|
Showers And Thunderstorms
|
82°F |
5 to 10 mph
NE
|
|
Thursday Night
Oct 8
|
Showers And Thunderstorms
|
73°F |
5 to 10 mph
NE
|
|
Friday
Oct 9
|
Showers And Thunderstorms
|
85°F |
5 to 10 mph
ENE
|
|
Friday Night
Oct 9
|
Showers And Thunderstorms then Chance Showers And Thunderstorms
|
75°F |
10 mph
E
|
|
Saturday
Oct 10
|
Showers And Thunderstorms
|
86°F |
10 to 15 mph
ESE
|
|
Saturday Night
Oct 10
|
Showers And Thunderstorms then Chance Showers And Thunderstorms
|
75°F |
10 to 15 mph
SE
|
|
Sunday
Oct 11
|
Showers And Thunderstorms Likely
|
88°F |
10 to 15 mph
SE
|
|
Sunday Night
Oct 11
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
74°F |
0 to 10 mph
SSE
|
|
Columbus Day
Oct 12
|
Chance Showers And Thunderstorms
|
88°F |
5 mph
SSW
|
|
Monday Night
Oct 12
|
Chance Showers And Thunderstorms then Partly Cloudy
|
71°F |
0 to 5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Saint John.
