Sag Harbor, NY Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Sun
Aug 2
Thunderstorms Late
Close Hourly
-º / 72º 69% S 15 mph 94%
8pm Cloudy 75º 15% SSE 4 mph 90%
9pm Cloudy 74º 15% SSE 4 mph 94%
10pm Cloudy 74º 15% SSE 5 mph 95%
11pm Foggy 73º 15% S 8 mph 97%
Mon
Aug 3
Thunderstorms
View Hourly
77º / 62º 87% SSW 19 mph 89%
12am Showers 73º 52% S 8 mph 98%
1am Thundershowers 74º 75% S 10 mph 97%
2am Thunderstorms 74º 86% S 12 mph 94%
3am Thunderstorms 74º 65% S 13 mph 93%
4am Thunderstorms 74º 70% S 15 mph 94%
5am Scattered Thunderstorms 74º 51% SSW 14 mph 92%
6am Scattered Thunderstorms 73º 42% SSW 15 mph 93%
7am Scattered Thunderstorms 74º 56% SSW 16 mph 94%
8am Thunderstorms 75º 60% SSW 18 mph 93%
9am Scattered Thunderstorms 76º 59% SSW 18 mph 89%
10am Thunderstorms 77º 80% SSW 18 mph 87%
11am Thunderstorms 76º 88% SSW 18 mph 88%
12pm Rain 76º 86% SSW 18 mph 90%
1pm Showers 77º 50% SSW 19 mph 88%
2pm Showers 77º 59% SSW 17 mph 87%
3pm Showers 76º 46% SSW 17 mph 89%
4pm Showers 76º 45% SSW 17 mph 89%
5pm Few Showers 76º 31% SSW 15 mph 89%
6pm Scattered Thunderstorms 76º 47% SW 14 mph 87%
7pm Scattered Thunderstorms 75º 54% SW 13 mph 88%
8pm Cloudy 74º 24% SW 10 mph 91%
9pm Cloudy 74º 24% WSW 8 mph 96%
10pm Few Showers 73º 32% W 7 mph 91%
11pm Mostly Cloudy 72º 17% WNW 5 mph 89%
Tue
Aug 4
Partly Cloudy
View Hourly
82º / 62º 5% N 7 mph 57%
12am Mostly Cloudy 70º 17% NW 5 mph 90%
1am Mostly Cloudy 69º 7% NW 5 mph 87%
2am Partly Cloudy 68º 6% NNW 5 mph 85%
3am Partly Cloudy 67º 6% NNW 4 mph 84%
4am Partly Cloudy 66º 6% NNW 4 mph 87%
5am Partly Cloudy 65º 6% NNW 3 mph 90%
6am Partly Cloudy 63º 6% NNW 3 mph 94%
7am Mostly Cloudy 67º 6% NNW 4 mph 88%
8am Partly Cloudy 71º 5% N 4 mph 77%
9am Partly Cloudy 73º 3% N 5 mph 67%
10am Mostly Cloudy 75º 1% N 6 mph 59%
11am Partly Cloudy 77º 1% N 7 mph 54%
12pm Partly Cloudy 78º 0% N 6 mph 50%
1pm Mostly Cloudy 80º 0% N 6 mph 46%
2pm Partly Cloudy 80º 0% NE 5 mph 44%
3pm Partly Cloudy 80º 0% SSE 5 mph 45%
4pm Partly Cloudy 79º 0% S 6 mph 47%
5pm Mostly Cloudy 79º 0% S 6 mph 50%
6pm Partly Cloudy 77º 0% S 5 mph 52%
7pm Mostly Cloudy 75º 1% S 4 mph 59%
Wed
Aug 5
Mostly Cloudy 80º / 70º 24% SSE 8 mph 74%
Thu
Aug 6
Partly Cloudy 82º / 70º 22% SW 12 mph 79%
Fri
Aug 7
Partly Cloudy 84º / 70º 15% SW 12 mph 74%
Sat
Aug 8
PM Thunderstorms 83º / 70º 39% SW 10 mph 73%
Sun
Aug 9
Partly Cloudy 82º / 69º 24% SW 11 mph 74%

Weather Radar for Sag Harbor, NY See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Sag Harbor, NY

This Afternoon
High : 82ºF
S wind around 8 kt. A slight chance of showers after 5pm. Seas 1 ft or less.
Tonight
Low : 72ºF
SSE wind 6 to 9 kt becoming S 9 to 12 kt after midnight. Winds could gust as high as 20 kt. A slight chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.
Monday
High : 81ºF
SSW wind 13 to 15 kt, with gusts as high as 26 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.
Monday Night
Low : 68ºF
SW wind 6 to 10 kt becoming NW after midnight. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm. Seas 1 ft or less.
Tuesday
High : 81ºF
NW wind around 6 kt becoming SW in the afternoon. Mostly sunny. Seas 1 ft or less.
Tuesday Night
Low : 68ºF
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.
Wednesday
High : 81ºF
Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.
Wednesday Night
Low : 71ºF
Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.
Thursday
High : 83ºF
Variable winds less than 5 kt becoming SSW 5 to 8 kt in the morning. Mostly sunny. Seas 1 ft or less.

NOAA Buoy Data Near Sag Harbor, NY See Map

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    Wind Speed Forecast for Sag Harbor, NY

    MondayTuesday
    Wind Speed (MPH) 48151818171054466
    12am4am8am12pm4pm8pm12am4am8am12pm4pm8pm
    MPH 48151818171054466
    DIR SSESSSSWSSWSSWSWNWNNWNNS

    Current Weather Conditions In Sag Harbor, NY

    As Of: 22 minutes ago

    • 75ºF
    • 75ºF
    • 4mph
    • 0º (SSE)
    • 4mph
    • Cloudy
    • 6mi
    • 29.87"
    • 90%
    • 0ºF

    The weather right now in Sag Harbor, NY is Cloudy. The current temperature is 75°F, and the expected high and low for today, Sunday, August 2, 2026, are -° high temperature and 72°F low temperature. The wind is currently blowing at 4 miles per hour, and coming from the South Southeast. The wind is gusting to 4 mph. With the wind and the atmosphere the temperature feels like 75° Fahrenheit. Expected precipitation is 15 percent, with current humidity at 90 percent, and air pressure at 29.87 in. Visibility is 6 nautical miles. There are 3 current weather alert(s).

    Weather Alerts
    Rip Current Statement - 3:30pm Sun Aug 2 2026

    ...HIGH SURF ADVISORY IN EFFECT FROM 6 AM TO 9 PM EDT MONDAY... ...HIGH RIP CURRENT RISK IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING...

    WHAT: For the High Surf Advisory, large breaking waves of 5
    to 9 feet expected in the surf zone. For the High Rip Current
    Risk, dangerous rip currents expected.

    WHERE: Kings (Brooklyn), Southwest Suffolk, Southeast
    Suffolk, Southern Queens and Southern Nassau Counties.

    WHEN: From 6 AM to 9 PM EDT Monday.

    IMPACTS: Dangerous swimming and surfing conditions and
    localized beach erosion. Life-threatening rip currents are
    likely for all people entering the surf zone. Anyone visiting
    the beaches should stay out of the surf. Rip currents can
    sweep even the best swimmers away from shore into deeper water.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced swimmers should remain out of the water due to
    dangerous surf conditions.

    If you enter the surf zone, always have a flotation device with
    you and swim near a lifeguard. If caught in a rip current, relax
    and float, and do not swim against the current. If able, swim in
    a direction following the shoreline. If unable to escape, face
    the shore and yell or wave for help.

    &&

    High Surf Advisory - 3:30pm Sun Aug 2 2026

    ...HIGH SURF ADVISORY IN EFFECT FROM 6 AM TO 9 PM EDT MONDAY... ...HIGH RIP CURRENT RISK IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING...

    WHAT: For the High Surf Advisory, large breaking waves of 5
    to 9 feet expected in the surf zone. For the High Rip Current
    Risk, dangerous rip currents expected.

    WHERE: Kings (Brooklyn), Southwest Suffolk, Southeast
    Suffolk, Southern Queens and Southern Nassau Counties.

    WHEN: From 6 AM to 9 PM EDT Monday.

    IMPACTS: Dangerous swimming and surfing conditions and
    localized beach erosion. Life-threatening rip currents are
    likely for all people entering the surf zone. Anyone visiting
    the beaches should stay out of the surf. Rip currents can
    sweep even the best swimmers away from shore into deeper water.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced swimmers should remain out of the water due to
    dangerous surf conditions.

    If you enter the surf zone, always have a flotation device with
    you and swim near a lifeguard. If caught in a rip current, relax
    and float, and do not swim against the current. If able, swim in
    a direction following the shoreline. If unable to escape, face
    the shore and yell or wave for help.

    &&

    Small Craft Advisory - 2:37pm Sun Aug 2 2026

    ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM TO 8 PM EDT MONDAY...

    WHAT: South winds 10 to 20 kt with gusts up to 30 kt and seas
    around 2 feet expected.

    WHERE: Long Island Sound from Port Jefferson and New Haven
    east to Orient Point and the Connecticut River, and Peconic
    and Gardiners Bays.

    WHEN: From 4 AM to 8 PM EDT Monday.

    IMPACTS: Conditions will be hazardous to small craft.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced mariners, especially those operating smaller
    vessels, should avoid navigating in hazardous conditions.

    &&