Port Jefferson, OH Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Port Jefferson, OH in one place.
A chance of showers and thunderstorms between 7am and 11am, then a chance of showers and thunderstorms between 11am and 1pm. Partly sunny, with a high near 90. Southwest wind 7 to 13 mph. Chance of precipitation is 30%.
Local Weather Overview
This forecast page for Port Jefferson, OH 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: Jun 9, 2026 9:08 PM EDT.
The active forecast window currently covers Jun 10 to Jun 16, 2026 for Port Jefferson, OH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 10 to Jun 16, 2026
- Latest sync
- Jun 9, 2026 9:08 PM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Jefferson
Wednesday looks like the warmest upcoming period in Port Jefferson at 90 degrees F.
Monday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Wednesday at about 7 to 13 mph SW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 9:08 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- ILN
- Radar station
- KILN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms after 5am. Mostly clear, with a low around 72. Southwest wind 8 to 12 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 11am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. Southwest wind 9 to 13 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 5am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southwest wind around 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 60.
Sunny, with a high near 83.
Mostly clear, with a low around 63.
A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
A slight chance of rain showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 77. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
A slight chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 10
|
Chance Showers And Thunderstorms
|
90°F |
7 to 13 mph
SW
|
|
Wednesday Night
Jun 10
|
Mostly Clear then Slight Chance Showers And Thunderstorms
|
72°F |
8 to 12 mph
SW
|
|
Thursday
Jun 11
|
Chance Showers And Thunderstorms
|
90°F |
9 to 13 mph
SW
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms
|
71°F |
13 mph
SW
|
|
Friday
Jun 12
|
Chance Showers And Thunderstorms
|
83°F |
13 mph
W
|
|
Friday Night
Jun 12
|
Mostly Clear
|
60°F |
2 to 9 mph
NW
|
|
Saturday
Jun 13
|
Sunny
|
83°F |
2 to 6 mph
W
|
|
Saturday Night
Jun 13
|
Mostly Clear
|
63°F |
5 mph
SW
|
|
Sunday
Jun 14
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
82°F |
5 to 8 mph
SW
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms
|
61°F |
7 mph
NW
|
|
Monday
Jun 15
|
Chance Showers And Thunderstorms
|
77°F |
6 to 9 mph
W
|
|
Monday Night
Jun 15
|
Chance Showers And Thunderstorms
|
57°F |
3 to 8 mph
W
|
|
Tuesday
Jun 16
|
Chance Showers And Thunderstorms
|
75°F |
5 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Jefferson.