Sag Harbor, NY Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Sag Harbor, NY.

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Current conditions are temporarily unavailable for SAG HARBOR, NEW YORK. No nearby METAR station found.

5-Day Forecast — Sag Harbor, NY

Wednesday

High 51 °F
Rain Showers Likely
Wednesday
Night
Low 42 °F
Mostly Cloudy

Thursday

High 62 °F
Mostly Cloudy

Thursday
Night
Low 44 °F
Mostly Cloudy

Friday

High 57 °F
Mostly Cloudy

Friday
Night
Low 44 °F
Partly Cloudy

Saturday

High 53 °F
Slight Chance of Rain Showers
Saturday
Night
Low 42 °F
Slight Chance of Rain
Sunday

High 55 °F
Mostly Cloudy

Detailed Forecast — Sag Harbor, NY

Wednesday
Rain Showers Likely. High near 51°F. Wind 6 to 14 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly Cloudy. Low around 42°F. Wind 2 to 5 mph, with gusts as high as 10 mph.
Thursday
Mostly Cloudy. High near 62°F. Wind 5 to 10 mph, with gusts as high as 21 mph.
Thursday Night
Mostly Cloudy. Low around 44°F. Wind 5 to 6 mph, with gusts as high as 12 mph.
Friday
Mostly Cloudy. High near 57°F. Wind 5 to 6 mph, with gusts as high as 10 mph.
Friday Night
Partly Cloudy. Low around 44°F. Wind 3 to 5 mph, with gusts as high as 9 mph.
Saturday
Slight Chance of Rain Showers. High near 53°F. Wind 6 to 8 mph, with gusts as high as 15 mph.
Saturday Night
Slight Chance of Rain. Low around 42°F. Wind 5 to 6 mph, with gusts as high as 10 mph.
Sunday
Mostly Cloudy. High near 55°F. Wind 6 to 9 mph, with gusts as high as 15 mph.
Sunday Night
Partly Cloudy. Low around 44°F. Wind around 6 mph, with gusts as high as 12 mph.
Monday
Slight Chance of Showers. High near 57°F. Wind 7 to 9 mph, with gusts as high as 16 mph.
Monday Night
Slight Chance of Showers. Low around 46°F. Wind 7 to 8 mph, with gusts as high as 14 mph.
Tuesday
Chance of Rain Showers. High near 57°F. Wind 8 to 10 mph, with gusts as high as 18 mph.
NY Radar
Current Radar • NY
Day 1 Outlook • April 22, 2026

Observation History — Sag Harbor, NY

Time Wind
(mph)
Vis
(mi)
Weather Precip (in) Temperature (F) Relative
Humidity
Wind
Chill
(F)
Heat
Index
(F)
Pressure
Air Dwpt altimeter
(in)
sea level
(mb)

Regional Weather Observation

(KHTO)


F

NEW HAVEN/TWEED (KHVN)

Cloudy
46.4 F

CHESTER (KSNC)

Cloudy
44.6 F

WESTHAMPTON BEAC (KFOK)

Cloudy
44.6 F

GROTON/NEW LONDO (KGON)

Cloudy
44.6 F

MERIDEN (KMMK)

Cloudy
46.4 F
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