Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Flash flood risk to focus on parts of central US. Get the forecast Chevron right

Port Jefferson, NY

88°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Port Jefferson

New York

88°
No results found.
Try searching for a city, zip code or point of interest.
settings
Port Jefferson, NY Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center
Today Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities
July 20

Morning

7/20
85°
RealFeel® 105°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel Shade™ 94°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
Mostly cloudy and humid

WindSSE 5 mph

Wind Gusts8 mph

Humidity87%

Dew Point75°

Probability of Precipitation25%

Precipitation0.00 in

Cloud Cover62%

Visibility10 mi

Afternoon

Day & Night

Sun & Moon

14 hrs 43 mins
Rise 5:37 AM
Set 8:20 PM
Waning Crescent
Rise 1:02 AM
Set 4:51 PM

Temperature History

7/20
High
Low
Forecast
88°
69°
Average
83°
68°
Last Year
83°
66°
Record
97°
2019
52°
1996

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Heat to briefly surge into Northeast late this week

1 hour ago

Severe Weather

Severe thunderstorms to bring a risk for flash flooding

45 minutes ago

Weather News

Lightning strike scorches Florida golf green

2 days ago

Weather Forecasts

100-degree heat dome to set up shop over southern US

23 minutes ago

Weather News

Why the search for the missing in Texas may take months

2 days ago

 More Stories

Featured Stories

Recreation

Felix Baumgartner, known for jump from stratosphere, dies in crash

2 days ago

Weather News

Curious Colorado bear rescued from storm drain

2 days ago

Weather News

Dinosaur fossil found underneath a Denver museum’s parking lot

3 days ago

Weather News

Dolphin rescued from shallow lagoon in South Carolina

1 day ago

Weather News

What happens when an octopus engages with art?

1 day ago
World North America United States New York Port Jefferson

Weather Near Port Jefferson:

  • Bridgeport, CT
  • New York, NY
  • Newark, NJ
Company
Proven Superior Accuracy About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2025 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information

...

...

...