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Port Jefferson, NY

58°F
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Port Jefferson

New York

58°
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Port Jefferson, NY Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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1 PM

62°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 63%
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Rain
alerts

Coastal Flood Advisory

11:00 AM Monday - 3:00 PM Monday

RealFeel Shade™55°

WindN 14 mph

Air QualityExcellent

Max UV Index0.9 (Low)

Wind Gusts24 mph

Humidity93%

Indoor Humidity74% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.02 in

Visibility10 mi

Cloud Ceiling1100 ft

2 PM

62°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy
alerts

Coastal Flood Advisory

11:00 AM Monday - 3:00 PM Monday

RealFeel Shade™59°

WindN 13 mph

Air QualityExcellent

Max UV Index1.0 (Low)

Wind Gusts23 mph

Humidity89%

Indoor Humidity73% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling1100 ft

3 PM

62°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 73%
Chevron down
Rain

RealFeel Shade™57°

WindN 13 mph

Air QualityExcellent

Max UV Index0.7 (Low)

Wind Gusts23 mph

Humidity89%

Indoor Humidity72% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.02 in

Visibility6 mi

Cloud Ceiling1100 ft

4 PM

62°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 73%
Chevron down
Rain

RealFeel Shade™56°

WindN 13 mph

Air QualityExcellent

Max UV Index0.5 (Low)

Wind Gusts22 mph

Humidity89%

Indoor Humidity71% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.02 in

Visibility6 mi

Cloud Ceiling1100 ft

5 PM

61°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 75%
Chevron down
Rain

RealFeel Shade™55°

WindN 13 mph

Air QualityExcellent

Max UV Index0.3 (Low)

Wind Gusts22 mph

Humidity89%

Indoor Humidity70% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Rain0.02 in

Visibility6 mi

Cloud Ceiling1100 ft

6 PM

61°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 75%
Chevron down
Rain

RealFeel Shade™54°

WindN 13 mph

Air QualityExcellent

Max UV Index0.2 (Low)

Wind Gusts20 mph

Humidity88%

Indoor Humidity68% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Rain0.02 in

Visibility6 mi

Cloud Ceiling1200 ft

7 PM

60°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

WindN 12 mph

Air QualityExcellent

Wind Gusts17 mph

Humidity88%

Indoor Humidity67% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover93%

Visibility10 mi

Cloud Ceiling1300 ft

8 PM

58°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

WindNNW 10 mph

Air QualityExcellent

Wind Gusts14 mph

Humidity89%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling1500 ft

9 PM

58°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 20%
Chevron down
Mostly cloudy

WindNNW 9 mph

Air QualityFair

Wind Gusts13 mph

Humidity88%

Indoor Humidity62% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover88%

Visibility10 mi

Cloud Ceiling1600 ft

10 PM

58°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 20%
Chevron down
Mostly cloudy

WindNNW 9 mph

Air QualityFair

Wind Gusts10 mph

Humidity87%

Indoor Humidity61% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover89%

Visibility10 mi

Cloud Ceiling1800 ft

11 PM

58°
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

WindNNW 8 mph

Air QualityFair

Wind Gusts9 mph

Humidity87%

Indoor Humidity60% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling2000 ft

Hourly Weather Forecast for Port Jefferson

AccuWeather's hourly forecast for Port Jefferson provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 62° with a RealFeel® of 55°, rain with a 63% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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Weather Near Port Jefferson:

  • Bridgeport, CT
  • New York, NY
  • Newark, NJ
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