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Over 100 million face wintry cold blast early this week. Get the forecast. Chevron right

Port Jefferson, NY

54°F
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Port Jefferson

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Port Jefferson, NY Weather
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6 AM

54°
RealFeel® 49°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 60%
Chevron down
Rain

WindNNW 7 mph

Air QualityFair

Wind Gusts15 mph

Humidity91%

Indoor Humidity55% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover97%

Rain0.01 in

Visibility5 mi

Cloud Ceiling9700 ft

7 AM

54°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 52%
Chevron down
Showers

RealFeel Shade™43°

WindNNE 17 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts21 mph

Humidity89%

Indoor Humidity54% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Rain0.03 in

Visibility6 mi

Cloud Ceiling300 ft

8 AM

54°
RealFeel® 47°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 48%
Chevron down
Mostly cloudy

RealFeel Shade™47°

WindN 15 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts18 mph

Humidity87%

Indoor Humidity53% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover78%

Visibility10 mi

Cloud Ceiling700 ft

9 AM

55°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 41%
Chevron down
Intermittent clouds

RealFeel Shade™50°

WindN 13 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts15 mph

Humidity84%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover66%

Visibility10 mi

Cloud Ceiling1100 ft

10 AM

55°
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 34%
Chevron down
Intermittent clouds

RealFeel Shade™50°

WindNW 13 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts20 mph

Humidity83%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover54%

Visibility10 mi

Cloud Ceiling1500 ft

11 AM

56°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 34%
Chevron down
Partly sunny

RealFeel Shade™50°

WindW 14 mph

Air QualityFair

Max UV Index2.5 (Low)

Wind Gusts21 mph

Humidity81%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover42%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

57°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 37%
Chevron down
Partly sunny

RealFeel Shade™51°

WindWSW 16 mph

Air QualityFair

Max UV Index2.6 (Moderate)

Wind Gusts21 mph

Humidity77%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover30%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

56°
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 48%
Chevron down
Partly sunny

RealFeel Shade™51°

WindWSW 12 mph

Air QualityFair

Max UV Index2.5 (Low)

Wind Gusts15 mph

Humidity80%

Indoor Humidity52% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

56°
RealFeel® 50°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 52%
Chevron down
Partly sunny w/ showers

RealFeel Shade™47°

WindWSW 13 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts18 mph

Humidity77%

Indoor Humidity51% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Rain0.03 in

Visibility6 mi

Cloud Ceiling30000 ft

3 PM

55°
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 48%
Chevron down
Partly sunny

RealFeel Shade™49°

WindWSW 14 mph

Air QualityFair

Max UV Index1.5 (Low)

Wind Gusts22 mph

Humidity75%

Indoor Humidity48% (Ideal Humidity)

Dew Point48° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

54°
RealFeel® 48°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 34%
Chevron down
Partly sunny

RealFeel Shade™48°

WindWSW 15 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts25 mph

Humidity74%

Indoor Humidity45% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

52°
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 34%
Chevron down
Partly cloudy

WindW 16 mph

Air QualityFair

Wind Gusts25 mph

Humidity73%

Indoor Humidity41% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

49°
RealFeel® 40°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 22%
Chevron down
Partly cloudy

WindW 17 mph

Air QualityExcellent

Wind Gusts25 mph

Humidity72%

Indoor Humidity37% (Ideal Humidity)

Dew Point41° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

46°
RealFeel® 36°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

WindW 16 mph

Air QualityExcellent

Wind Gusts24 mph

Humidity72%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover75%

Visibility10 mi

Cloud Ceiling7100 ft

8 PM

45°
RealFeel® 34°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

WindW 16 mph

Air QualityExcellent

Wind Gusts23 mph

Humidity70%

Indoor Humidity30% (Slightly Dry)

Dew Point36° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover56%

Visibility10 mi

Cloud Ceiling14700 ft

9 PM

42°
RealFeel® 31°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy

WindW 16 mph

Air QualityExcellent

Wind Gusts21 mph

Humidity72%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover38%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

41°
RealFeel® 29°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindW 16 mph

Air QualityExcellent

Wind Gusts20 mph

Humidity70%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

39°
RealFeel® 27°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindW 16 mph

Air QualityExcellent

Wind Gusts18 mph

Humidity69%

Indoor Humidity38% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover21%

Visibility10 mi

Cloud Ceiling30000 ft

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Weather Near Port Jefferson:

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