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Current weather in Setauket is broken clouds.

Where can I find the hourly weather forecast for Setauket?

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

Is the weather forecast for Setauket updated regularly?

Weather data for Setauket is updated regularly with the latest available observations and forecasts.

Now · 1:49 PM

Setauket Weather & Hourly Forecast

United States · New York · 11733

83°F

Mostly cloudy

Feels like: 85°F

💧 Humidity 61% 🌡 Pressure 29.83 inHg 💨 Wind 8 mph 👁 Visibility 25.9 mi ☁ Clouds 72% ☀️ UV index 7.1 · High 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Setauket

Today

2:00 PM

Mostly cloudy

83° 💧 None 💨 8 mph H 61%29.83 inHg

5:00 PM

Sunny

84° 💧 None 💨 8 mph H 57%29.80 inHg

8:00 PM

Mostly clear night

77° 💧 None 💨 4 mph H 74%29.83 inHg

11:00 PM

Overcast night

75° 💧 None 💨 5 mph H 75%29.88 inHg

Tomorrow

2:00 AM

Mostly cloudy night

72° 💧 None 💨 5 mph H 71%29.88 inHg

5:00 AM

Overcast night

70° 💧 None 💨 4 mph H 77%29.88 inHg

8:00 AM

Overcast

70° 💧 0.000 in 💨 5 mph H 71%29.94 inHg

11:00 AM

Overcast

69° 💧 0.001 in 💨 6 mph H 58%29.97 inHg

2:00 PM

Mostly sunny

73° 💧 None 💨 5 mph H 48%29.94 inHg

5:00 PM

Sunny

74° 💧 None 💨 4 mph H 49%29.94 inHg

8:00 PM

Clear night

70° 💧 None 💨 4 mph H 63%29.97 inHg

11:00 PM

Clear night

67° 💧 None 💨 4 mph H 66%30.03 inHg

Saturday

2:00 AM

Clear night

64° 💧 None 💨 4 mph H 74%30.06 inHg

5:00 AM

Clear night

62° 💧 None 💨 2 mph H 84%30.09 inHg

8:00 AM

Sunny

65° 💧 None 💨 3 mph H 81%30.12 inHg

11:00 AM

Sunny

74° 💧 None 💨 3 mph H 52%30.12 inHg

Today

2:00 PM

Mostly cloudy

83° 💧 None 💨 8 mph H 61%29.83 inHg

3:00 PM

Sunny

83° 💧 None 💨 8 mph H 60%29.83 inHg

4:00 PM

Sunny

84° 💧 None 💨 8 mph H 57%29.83 inHg

5:00 PM

Sunny

84° 💧 None 💨 8 mph H 57%29.80 inHg

6:00 PM

Partly cloudy

82° 💧 None 💨 6 mph H 61%29.83 inHg

7:00 PM

Mostly sunny

80° 💧 None 💨 4 mph H 69%29.83 inHg

8:00 PM

Mostly clear night

77° 💧 None 💨 4 mph H 74%29.83 inHg

9:00 PM

Mostly clear night

76° 💧 None 💨 4 mph H 75%29.85 inHg

10:00 PM

Mostly cloudy night

76° 💧 None 💨 4 mph H 77%29.85 inHg

11:00 PM

Overcast night

75° 💧 None 💨 5 mph H 75%29.88 inHg

Tomorrow

12:00 AM

Mostly cloudy night

75° 💧 None 💨 6 mph H 72%29.88 inHg

1:00 AM

Partly cloudy night

74° 💧 None 💨 5 mph H 70%29.88 inHg

2:00 AM

Mostly cloudy night

72° 💧 None 💨 5 mph H 71%29.88 inHg

3:00 AM

Overcast night

71° 💧 None 💨 4 mph H 75%29.88 inHg

4:00 AM

Overcast night

70° 💧 None 💨 4 mph H 77%29.88 inHg

5:00 AM

Overcast night

70° 💧 None 💨 4 mph H 77%29.88 inHg

6:00 AM

Overcast night

70° 💧 None 💨 4 mph H 75%29.91 inHg

7:00 AM

Overcast

70° 💧 None 💨 4 mph H 73%29.91 inHg

8:00 AM

Overcast

70° 💧 None 💨 5 mph H 71%29.94 inHg

9:00 AM

Overcast

70° 💧 None 💨 6 mph H 65%29.97 inHg

10:00 AM

Overcast

69° 💧 0.000 in 💨 6 mph H 61%29.97 inHg

11:00 AM

Overcast

69° 💧 0.001 in 💨 6 mph H 58%29.97 inHg

12:00 PM

Overcast

70° 💧 None 💨 6 mph H 56%29.97 inHg

1:00 PM

Mostly cloudy

72° 💧 None 💨 6 mph H 50%29.97 inHg

2:00 PM

Mostly sunny

73° 💧 None 💨 5 mph H 48%29.94 inHg

3:00 PM

Sunny

73° 💧 None 💨 5 mph H 49%29.94 inHg

4:00 PM

Sunny

74° 💧 None 💨 4 mph H 49%29.94 inHg

5:00 PM

Sunny

74° 💧 None 💨 4 mph H 49%29.94 inHg

6:00 PM

Sunny

74° 💧 None 💨 5 mph H 52%29.94 inHg

7:00 PM

Sunny

71° 💧 None 💨 4 mph H 59%29.97 inHg

8:00 PM

Clear night

70° 💧 None 💨 4 mph H 63%29.97 inHg

9:00 PM

Clear night

69° 💧 None 💨 4 mph H 65%30.00 inHg

10:00 PM

Clear night

68° 💧 None 💨 4 mph H 66%30.03 inHg

11:00 PM

Clear night

67° 💧 None 💨 4 mph H 66%30.03 inHg

Saturday

12:00 AM

Clear night

67° 💧 None 💨 3 mph H 66%30.03 inHg

1:00 AM

Clear night

65° 💧 None 💨 3 mph H 70%30.06 inHg

2:00 AM

Clear night

64° 💧 None 💨 4 mph H 74%30.06 inHg

3:00 AM

Clear night

63° 💧 None 💨 3 mph H 79%30.06 inHg

4:00 AM

Clear night

63° 💧 None 💨 3 mph H 82%30.06 inHg

5:00 AM

Clear night

62° 💧 None 💨 2 mph H 84%30.09 inHg

6:00 AM

Clear night

61° 💧 None 💨 2 mph H 86%30.09 inHg

7:00 AM

Sunny

61° 💧 None 💨 2 mph H 88%30.12 inHg

8:00 AM

Sunny

65° 💧 None 💨 3 mph H 81%30.12 inHg

9:00 AM

Sunny

69° 💧 None 💨 3 mph H 72%30.12 inHg

10:00 AM

Sunny

72° 💧 None 💨 3 mph H 58%30.12 inHg

11:00 AM

Sunny

74° 💧 None 💨 3 mph H 52%30.12 inHg

12:00 PM

Partly cloudy

75° 💧 None 💨 3 mph H 51%30.12 inHg

1:00 PM

Mostly cloudy

77° 💧 None 💨 2 mph H 49%30.12 inHg

2:00 PM

Mostly cloudy

77° 💧 None 💨 2 mph H 50%30.09 inHg

3:00 PM

Overcast

76° 💧 None 💨 5 mph H 52%30.09 inHg

4:00 PM

Overcast

75° 💧 None 💨 7 mph H 57%30.09 inHg

5:00 PM

Overcast

74° 💧 None 💨 7 mph H 62%30.06 inHg

6:00 PM

Mostly cloudy

72° 💧 None 💨 7 mph H 64%30.06 inHg

7:00 PM

Mostly cloudy

70° 💧 None 💨 5 mph H 69%30.09 inHg

8:00 PM

Overcast night

68° 💧 None 💨 5 mph H 73%30.09 inHg

Sunday

5:00 AM

Overcast night

71° 💧 None 💨 9 mph H 80%30.03 inHg

8:00 AM

Moderate rain

71° 💧 None 💨 6 mph H 82%30.03 inHg

11:00 AM

Moderate rain

73° 💧 None 💨 10 mph H 94%30.00 inHg

2:00 PM

Mostly cloudy

76° 💧 None 💨 9 mph H 84%29.94 inHg

5:00 PM

Light rain

77° 💧 None 💨 5 mph H 82%29.88 inHg

8:00 PM

Clear night

75° 💧 None 💨 8 mph H 93%29.91 inHg

11:00 PM

Mostly clear night

74° 💧 None 💨 9 mph H 95%29.91 inHg

Monday

2:00 AM

Partly cloudy night

74° 💧 None 💨 11 mph H 91%29.91 inHg

5:00 AM

Partly cloudy night

70° 💧 None 💨 11 mph H 67%29.94 inHg

8:00 AM

Partly cloudy

69° 💧 None 💨 14 mph H 67%30.03 inHg

11:00 AM

Overcast

69° 💧 None 💨 13 mph H 69%30.06 inHg

2:00 PM

Sunny

70° 💧 None 💨 12 mph H 69%30.06 inHg

5:00 PM

Sunny

74° 💧 None 💨 13 mph H 55%30.06 inHg

8:00 PM

Clear night

72° 💧 None 💨 15 mph H 57%30.12 inHg

11:00 PM

Clear night

70° 💧 None 💨 16 mph H 64%30.18 inHg

Tuesday

2:00 AM

Clear night

66° 💧 None 💨 17 mph H 68%30.21 inHg

5:00 AM

Clear night

63° 💧 None 💨 13 mph H 70%30.24 inHg

8:00 AM

Sunny

63° 💧 None 💨 12 mph H 71%30.33 inHg

11:00 AM

Mostly sunny

66° 💧 None 💨 10 mph H 66%30.33 inHg

2:00 PM

Mostly sunny

68° 💧 None 💨 9 mph H 61%30.30 inHg

5:00 PM

Mostly sunny

70° 💧 None 💨 7 mph H 56%30.27 inHg

8:00 PM

Clear night

65° 💧 None 💨 8 mph H 70%30.27 inHg

11:00 PM

Mostly cloudy night

64° 💧 None 💨 7 mph H 78%30.30 inHg

Wednesday

2:00 AM

Clear night

64° 💧 None 💨 8 mph H 81%30.30 inHg

8:00 AM

Mostly cloudy

63° 💧 None 💨 8 mph H 81%30.33 inHg

2:00 PM

Mostly cloudy

66° 💧 None 💨 7 mph H 83%30.33 inHg

8:00 PM

Partly cloudy night

74° 💧 None 💨 11 mph H 66%30.27 inHg

Thursday

2:00 AM

Mostly clear night

70° 💧 None 💨 10 mph H 78%30.24 inHg

8:00 AM

Mostly cloudy

70° 💧 None 💨 10 mph H 87%30.24 inHg

2:00 PM

Sunny

70° 💧 None 💨 8 mph H 81%30.24 inHg

8:00 PM

Clear night

77° 💧 None 💨 12 mph H 65%30.15 inHg

Friday

2:00 AM

Clear night

72° 💧 None 💨 13 mph H 83%30.00 inHg

8:00 AM

Sunny

73° 💧 None 💨 14 mph H 88%29.91 inHg

2:00 PM

Overcast

72° 💧 None 💨 16 mph H 86%29.91 inHg

8:00 PM

Overcast night

70° 💧 None 💨 9 mph H 66%30.03 inHg

Saturday

2:00 AM

Mostly cloudy night

71° 💧 None 💨 15 mph H 61%30.03 inHg

8:00 AM

Overcast

66° 💧 None 💨 15 mph H 69%30.12 inHg

2:00 PM

Mostly cloudy

62° 💧 None 💨 17 mph H 70%30.24 inHg

8:00 PM

Mostly clear night

66° 💧 None 💨 9 mph H 58%30.24 inHg

Sunday

2:00 AM

Mostly cloudy night

65° 💧 None 💨 7 mph H 59%30.24 inHg

8:00 AM

Overcast

61° 💧 None 💨 10 mph H 72%30.24 inHg

2:00 PM

Overcast

61° 💧 None 💨 13 mph H 64%30.27 inHg

8:00 PM

Mostly cloudy night

65° 💧 None 💨 11 mph H 50%30.24 inHg

Monday

2:00 AM

Mostly cloudy night

65° 💧 None 💨 8 mph H 64%30.21 inHg

8:00 AM

Overcast

64° 💧 None 💨 14 mph H 69%30.24 inHg

2:00 PM

Overcast

63° 💧 None 💨 17 mph H 67%30.27 inHg

8:00 PM

Overcast night

70° 💧 None 💨 18 mph H 61%30.30 inHg

Tuesday

2:00 AM

Mostly cloudy night

68° 💧 None 💨 19 mph H 66%30.33 inHg

8:00 AM

Overcast

64° 💧 None 💨 20 mph H 81%30.30 inHg

2:00 PM

Partly cloudy

62° 💧 None 💨 20 mph H 79%30.33 inHg

8:00 PM

Mostly clear night

70° 💧 None 💨 14 mph H 54%30.30 inHg

Wednesday

2:00 AM

Clear night

69° 💧 None 💨 16 mph H 54%30.24 inHg

8:00 AM

Sunny

60° 💧 None 💨 13 mph H 81%30.21 inHg

2:00 PM

Partly cloudy

59° 💧 None 💨 13 mph H 83%30.18 inHg

8:00 PM

Clear night

65° 💧 None 💨 6 mph H 61%30.09 inHg

Thursday

2:00 AM

Clear night

64° 💧 None 💨 6 mph H 67%29.97 inHg

8:00 AM

Sunny

62° 💧 None 💨 8 mph H 89%29.91 inHg

2:00 PM

Mostly sunny

64° 💧 None 💨 8 mph H 75%29.91 inHg

8:00 PM

Light rain

71° 💧 None 💨 15 mph H 60%29.94 inHg

Friday

2:00 AM

Clear night

67° 💧 None 💨 16 mph H 61%30.03 inHg

In Setauket and, more broadly, across the state of New York: The rest of the day will bring a mix of sun and clouds, with temperatures lingering between 62 and 74 degrees Fahrenheit. Winds will be moderate, coming in from the northwest at up to 16 mph, with gusts reaching 28 mph. No significant rainfall is expected, so conditions should remain dry. It will be a pleasant afternoon with mild temperatures and a breezy northwest wind. Keep an eye on the sky if you're outdoors, as gusty conditions may develop. Overall, it looks like a comfortable day to be outside, with enough sunshine and mild weather to enjoy.

15-Day Weather Outlook for Setauket

TomorrowTomorrow

Mostly sunny 77°/69° 💧 None 💨 6 mph

Saturday, Sep 12Sat Sep 12

Partly cloudy 77°/61° 💧 None 💨 7 mph

Sunday, Sep 13Sun Sep 13

Moderate rain 77°/68° 💧 0.482 in 💨 10 mph

Monday, Sep 14Mon Sep 14

Overcast 75°/69° 💧 0.008 in 💨 14 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 72°/63° 💧 None 💨 17 mph

Wednesday, Sep 16Wed Sep 16

Mostly cloudy 66°/63° 💧 0.462 in 💨 8 mph

Thursday, Sep 17Thu Sep 17

Partly cloudy 74°/70° 💧 None 💨 11 mph

Friday, Sep 18Fri Sep 18

Overcast 77°/72° 💧 0.105 in 💨 16 mph

Saturday, Sep 19Sat Sep 19

Overcast 71°/62° 💧 0.064 in 💨 17 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 66°/61° 💧 None 💨 13 mph

Monday, Sep 21Mon Sep 21

Mostly cloudy 65°/63° 💧 None 💨 17 mph

Tuesday, Sep 22Tue Sep 22

Overcast 70°/62° 💧 None 💨 20 mph

Wednesday, Sep 23Wed Sep 23

Mostly sunny 70°/59° 💧 None 💨 16 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 65°/62° 💧 None 💨 8 mph

Friday, Sep 25Fri Sep 25

Light rain 71°/67° 💧 0.042 in 💨 16 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Setauket

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Setauket

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 2:00 PM

PM2.5 Fine particles Good 7,3µg/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 9,7µg/m³

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

O₃ Ozone Fair 90,7µg/m³

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

NO₂ Nitrogen dioxide Good 3,7µg/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 Setauket

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 7,1High 🙂Fair

Tomorrow UV 5,6Moderate 😐Moderate

Saturday UV 6,3High 😐Moderate

Sunday UV 5,7Moderate 😐Moderate

Monday UV 6,0High 🙂Fair

Tuesday UV 6,0High —Unavailable

Wednesday UV 7,0High —Unavailable

Hourly UV index today

2:00 PMUV 6,3 3:00 PMUV 4,8 4:00 PMUV 2,9 5:00 PMUV 1,3 6:00 PMUV 0,4 7:00 PMUV 0,0

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.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

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 Setauket

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · SETAUKET, NEW YORK

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 9:00 PM–10:00 PM.

82/100Best-hour score

BEST TIME TONIGHT 9:00 PM–10:00 PM Astronomical darkness: 8:44 PM–4:55 AM

☁ Cloud cover 25% Real hourly forecast for the best viewing hour.

☾ Moonlight 1% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 10° high at the best hour.

✦ Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min21%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

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Forecast data for Setauket were last refreshed today at 1:49 PM. The current forecast period extends through 12/09/2026 at 11:00 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.