What is the weather in Port Jefferson Station right now?

Current weather in Port Jefferson Station is overcast clouds.

Where can I find the hourly weather forecast for Port Jefferson Station?

This page shows hourly weather forecast for Port Jefferson Station, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Port Jefferson Station updated regularly?

Weather data for Port Jefferson Station is updated regularly with the latest available observations and forecasts.

Now · 11:29 AM

Port Jefferson Station Weather & Hourly Forecast

United States · New York · 11776

76°F

Overcast

Feels like: 78°F

💧 Humidity 87% 🌡 Pressure 30.00 inHg 💨 Wind 5 mph 👁 Visibility 6.2 mi ☁ Clouds 99% ☀️ UV index 5.0 · Moderate 🌅 Sunrise 6:15 AM 🌇 Sunset 7:32 PM

Hourly Forecast for Port Jefferson Station

Today

12:00 PM

Overcast

76° 💧 0.00 in 💨 5 mph H 87%30.00 inHg

3:00 PM

Overcast

77° 💧 None 💨 4 mph H 73%29.97 inHg

6:00 PM

Light rain

76° 💧 0.01 in 💨 6 mph H 69%29.97 inHg

9:00 PM

Overcast night

73° 💧 None 💨 8 mph H 71%30.03 inHg

Tomorrow

12:00 AM

Overcast night

68° 💧 None 💨 13 mph H 59%30.09 inHg

3:00 AM

Clear night

64° 💧 None 💨 12 mph H 56%30.12 inHg

6:00 AM

Clear night

61° 💧 None 💨 11 mph H 58%30.15 inHg

9:00 AM

Sunny

65° 💧 None 💨 8 mph H 58%30.21 inHg

12:00 PM

Mostly sunny

71° 💧 None 💨 3 mph H 50%30.21 inHg

3:00 PM

Mostly sunny

74° 💧 None 💨 3 mph H 43%30.18 inHg

6:00 PM

Mostly sunny

74° 💧 None 💨 2 mph H 43%30.15 inHg

9:00 PM

Partly cloudy night

69° 💧 None 💨 9 mph H 57%30.18 inHg

Sunday

12:00 AM

Mostly clear night

67° 💧 None 💨 9 mph H 65%30.18 inHg

3:00 AM

Overcast night

71° 💧 None 💨 8 mph H 74%30.15 inHg

6:00 AM

Mostly cloudy night

71° 💧 None 💨 7 mph H 75%30.15 inHg

9:00 AM

Overcast

74° 💧 None 💨 7 mph H 65%30.18 inHg

Today

12:00 PM

Overcast

76° 💧 None 💨 5 mph H 87%30.00 inHg

1:00 PM

Overcast

77° 💧 None 💨 5 mph H 83%30.00 inHg

2:00 PM

Light rain

77° 💧 0.00 in 💨 4 mph H 79%29.97 inHg

3:00 PM

Overcast

77° 💧 None 💨 4 mph H 73%29.97 inHg

4:00 PM

Overcast

76° 💧 None 💨 4 mph H 66%29.97 inHg

5:00 PM

Overcast

75° 💧 None 💨 7 mph H 63%29.97 inHg

6:00 PM

Light rain

76° 💧 0.01 in 💨 6 mph H 69%29.97 inHg

7:00 PM

Overcast

76° 💧 None 💨 5 mph H 70%30.00 inHg

8:00 PM

Overcast night

75° 💧 None 💨 7 mph H 70%30.00 inHg

9:00 PM

Overcast night

73° 💧 None 💨 8 mph H 71%30.03 inHg

10:00 PM

Overcast night

71° 💧 None 💨 12 mph H 69%30.06 inHg

11:00 PM

Overcast night

69° 💧 None 💨 13 mph H 64%30.06 inHg

Tomorrow

12:00 AM

Overcast night

68° 💧 None 💨 13 mph H 59%30.09 inHg

1:00 AM

Overcast night

66° 💧 None 💨 14 mph H 56%30.09 inHg

2:00 AM

Mostly cloudy night

66° 💧 None 💨 13 mph H 54%30.12 inHg

3:00 AM

Clear night

64° 💧 None 💨 12 mph H 56%30.12 inHg

4:00 AM

Clear night

63° 💧 None 💨 13 mph H 60%30.15 inHg

5:00 AM

Clear night

62° 💧 None 💨 13 mph H 59%30.15 inHg

6:00 AM

Clear night

61° 💧 None 💨 11 mph H 58%30.15 inHg

7:00 AM

Sunny

62° 💧 None 💨 10 mph H 58%30.18 inHg

8:00 AM

Sunny

64° 💧 None 💨 10 mph H 59%30.18 inHg

9:00 AM

Sunny

65° 💧 None 💨 8 mph H 58%30.21 inHg

10:00 AM

Sunny

66° 💧 None 💨 6 mph H 55%30.21 inHg

11:00 AM

Mostly sunny

69° 💧 None 💨 4 mph H 52%30.24 inHg

12:00 PM

Mostly sunny

71° 💧 None 💨 3 mph H 50%30.21 inHg

1:00 PM

Partly cloudy

72° 💧 None 💨 1 mph H 48%30.21 inHg

2:00 PM

Partly cloudy

73° 💧 None 💨 2 mph H 45%30.21 inHg

3:00 PM

Mostly sunny

74° 💧 None 💨 3 mph H 43%30.18 inHg

4:00 PM

Mostly sunny

74° 💧 None 💨 3 mph H 42%30.15 inHg

5:00 PM

Mostly sunny

74° 💧 None 💨 3 mph H 42%30.15 inHg

6:00 PM

Mostly sunny

74° 💧 None 💨 2 mph H 43%30.15 inHg

7:00 PM

Mostly sunny

72° 💧 None 💨 1 mph H 51%30.15 inHg

8:00 PM

Mostly clear night

71° 💧 None 💨 4 mph H 54%30.18 inHg

9:00 PM

Partly cloudy night

69° 💧 None 💨 9 mph H 57%30.18 inHg

10:00 PM

Partly cloudy night

68° 💧 None 💨 9 mph H 62%30.18 inHg

11:00 PM

Mostly clear night

67° 💧 None 💨 9 mph H 63%30.18 inHg

Sunday

12:00 AM

Mostly clear night

67° 💧 None 💨 9 mph H 65%30.18 inHg

1:00 AM

Partly cloudy night

66° 💧 None 💨 8 mph H 68%30.18 inHg

2:00 AM

Partly cloudy night

68° 💧 None 💨 8 mph H 71%30.18 inHg

3:00 AM

Overcast night

71° 💧 None 💨 8 mph H 74%30.15 inHg

4:00 AM

Overcast night

71° 💧 None 💨 9 mph H 75%30.18 inHg

5:00 AM

Overcast night

72° 💧 None 💨 9 mph H 76%30.18 inHg

6:00 AM

Mostly cloudy night

71° 💧 None 💨 7 mph H 75%30.15 inHg

7:00 AM

Mostly cloudy

72° 💧 None 💨 8 mph H 74%30.18 inHg

8:00 AM

Mostly cloudy

73° 💧 None 💨 7 mph H 69%30.18 inHg

9:00 AM

Overcast

74° 💧 None 💨 7 mph H 65%30.18 inHg

10:00 AM

Overcast

75° 💧 None 💨 10 mph H 64%30.18 inHg

11:00 AM

Overcast

75° 💧 None 💨 10 mph H 66%30.18 inHg

12:00 PM

Overcast

75° 💧 None 💨 9 mph H 65%30.15 inHg

1:00 PM

Overcast

78° 💧 None 💨 9 mph H 62%30.12 inHg

2:00 PM

Overcast

79° 💧 None 💨 10 mph H 62%30.09 inHg

3:00 PM

Sunny

81° 💧 None 💨 10 mph H 62%30.06 inHg

4:00 PM

Light rain

80° 💧 0.00 in 💨 12 mph H 65%30.06 inHg

5:00 PM

Light rain

78° 💧 0.01 in 💨 13 mph H 71%30.06 inHg

6:00 PM

Light rain

77° 💧 0.00 in 💨 10 mph H 74%30.03 inHg

7:00 PM

Mostly cloudy

77° 💧 None 💨 12 mph H 77%30.03 inHg

8:00 PM

Mostly cloudy night

75° 💧 None 💨 15 mph H 81%30.03 inHg

9:00 PM

Moderate rain

74° 💧 0.06 in 💨 16 mph H 86%30.06 inHg

10:00 PM

Light rain

75° 💧 0.01 in 💨 9 mph H 87%30.03 inHg

11:00 PM

Moderate rain

74° 💧 0.04 in 💨 10 mph H 86%30.03 inHg

Monday

12:00 AM

Light rain

74° 💧 0.02 in 💨 6 mph H 85%30.03 inHg

1:00 AM

Overcast night

73° 💧 None 💨 8 mph H 84%30.06 inHg

2:00 AM

Overcast night

73° 💧 None 💨 5 mph H 79%30.06 inHg

3:00 AM

Overcast night

72° 💧 None 💨 3 mph H 78%30.03 inHg

4:00 AM

Overcast night

72° 💧 None 💨 5 mph H 78%30.03 inHg

5:00 AM

Overcast night

72° 💧 None 💨 7 mph H 75%30.03 inHg

6:00 AM

Overcast night

71° 💧 None 💨 8 mph H 73%30.03 inHg

7:00 AM

Overcast

70° 💧 None 💨 6 mph H 73%30.06 inHg

8:00 AM

Overcast

70° 💧 None 💨 6 mph H 72%30.06 inHg

9:00 AM

Overcast

71° 💧 None 💨 5 mph H 70%30.06 inHg

10:00 AM

Overcast

72° 💧 None 💨 4 mph H 65%30.09 inHg

11:00 AM

Overcast

72° 💧 None 💨 2 mph H 62%30.09 inHg

12:00 PM

Overcast

73° 💧 None 💨 4 mph H 61%30.09 inHg

1:00 PM

Overcast

76° 💧 None 💨 6 mph H 56%30.06 inHg

2:00 PM

Mostly cloudy

76° 💧 None 💨 7 mph H 56%30.06 inHg

3:00 PM

Sunny

77° 💧 None 💨 7 mph H 56%30.03 inHg

4:00 PM

Sunny

77° 💧 None 💨 5 mph H 57%30.03 inHg

5:00 PM

Sunny

78° 💧 None 💨 4 mph H 56%30.03 inHg

6:00 PM

Sunny

78° 💧 None 💨 4 mph H 61%30.03 inHg

7:00 PM

Mostly sunny

77° 💧 None 💨 6 mph H 63%30.03 inHg

8:00 PM

Mostly clear night

76° 💧 None 💨 8 mph H 67%30.03 inHg

9:00 PM

Clear night

75° 💧 None 💨 10 mph H 72%30.03 inHg

10:00 PM

Mostly cloudy night

75° 💧 None 💨 9 mph H 73%30.03 inHg

11:00 PM

Mostly cloudy night

75° 💧 None 💨 9 mph H 76%30.03 inHg

Tuesday

12:00 AM

Mostly cloudy night

74° 💧 None 💨 8 mph H 79%30.03 inHg

1:00 AM

Mostly cloudy night

73° 💧 None 💨 9 mph H 83%30.03 inHg

2:00 AM

Mostly cloudy night

73° 💧 None 💨 9 mph H 84%30.03 inHg

3:00 AM

Light rain

72° 💧 0.01 in 💨 10 mph H 87%30.03 inHg

4:00 AM

Light rain

72° 💧 0.02 in 💨 10 mph H 90%30.03 inHg

5:00 AM

Light rain

71° 💧 0.03 in 💨 10 mph H 92%30.03 inHg

6:00 AM

Light rain

71° 💧 0.03 in 💨 11 mph H 92%30.00 inHg

7:00 AM

Light rain

71° 💧 0.04 in 💨 11 mph H 93%30.03 inHg

8:00 AM

Light rain

71° 💧 0.04 in 💨 10 mph H 94%30.03 inHg

9:00 AM

Moderate rain

71° 💧 0.04 in 💨 10 mph H 95%30.03 inHg

10:00 AM

Light rain

70° 💧 0.02 in 💨 12 mph H 95%30.03 inHg

11:00 AM

Overcast

70° 💧 None 💨 14 mph H 95%30.03 inHg

In Port Jefferson Station and, more broadly, across the state of New York: The rest of the day will feature a mix of sun and clouds with mild temperatures ranging from 54 to 67 degrees Fahrenheit. A slight chance of light rain remains, with possible accumulation around 0.01 inches and a maximum probability of 20%. Winds will be light, coming from the northwest at up to 8 mph, with gusts reaching 13 mph. Overall, expect a relatively quiet afternoon with comfortable conditions, but keep an umbrella handy just in case the brief showers occur. The weather should remain fairly stable through the evening hours.

15-Day Weather Outlook for Port Jefferson Station

TomorrowTomorrow

Mostly sunny 74°/61° 💧 None 💨 14 mph

Sunday, Aug 30Sun Aug 30

Moderate rain 81°/66° 💧 0.13 in 💨 16 mph

Monday, Aug 31Mon Aug 31

Light rain 78°/70° 💧 0.02 in 💨 9 mph

Tuesday, Sep 1Tue Sep 1

Light rain 73°/70° 💧 0.36 in 💨 14 mph

Wednesday, Sep 2Wed Sep 2

Moderate rain 75°/71° 💧 0.47 in 💨 14 mph

Thursday, Sep 3Thu Sep 3

Moderate rain 88°/74° 💧 0.41 in 💨 17 mph

Friday, Sep 4Fri Sep 4

Sunny 80°/73° 💧 None 💨 15 mph

Saturday, Sep 5Sat Sep 5

Sunny 77°/68° 💧 None 💨 15 mph

Sunday, Sep 6Sun Sep 6

Sunny 76°/66° 💧 None 💨 12 mph

Monday, Sep 7Mon Sep 7

Overcast 73°/65° 💧 None 💨 7 mph

Tuesday, Sep 8Tue Sep 8

Sunny 77°/69° 💧 None 💨 11 mph

Wednesday, Sep 9Wed Sep 9

Sunny 77°/64° 💧 None 💨 13 mph

Thursday, Sep 10Thu Sep 10

Sunny 72°/64° 💧 None 💨 13 mph

Friday, Sep 11Fri Sep 11

Overcast 69°/63° 💧 None 💨 10 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 71°/63° 💧 None 💨 10 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Port Jefferson Station

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Port Jefferson Station

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 12:00 PM

PM2.5 Fine particles Good 4,2µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 6,0µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 60,5µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 6,0µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Port Jefferson Station

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 6,0High 🙂Fair

Tomorrow UV 6,0High 😐Moderate

Sunday UV 7,0High 😐Moderate

Monday UV 6,0High ⚠️Very poor

Tuesday UV 6,0High 😷Poor

Wednesday UV 5,0Moderate —Unavailable

Thursday UV 7,0High —Unavailable

Hourly UV index today

12:00 PMUV 6,0 1:00 PMUV 6,0 2:00 PMUV 6,0 3:00 PMUV 6,0 4:00 PMUV 6,0 5:00 PMUV 6,0 6:00 PMUV 6,0 7:00 PMUV 6,0

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Port Jefferson Station

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 4.06 Population: 7,676

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Forecast data for Port Jefferson Station were last refreshed today at 11:29 AM. The current forecast period extends through 30/08/2026 at 9:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.