Sag Harbor, NY Weather Forecast

Local 7-day forecast

55°
F

Rain Showers Likely

Track current conditions, temperature changes, wind, and the full daily outlook for Sag Harbor, NY in one place.

Sunday, April 19, 2026
Wind: 6 to 12 mph SW
Sunday

Rain showers likely. Cloudy, with a high near 55. Chance of precipitation is 70%.

Local 7-day forecast

Local Weather Overview

This forecast page for Sag Harbor, NY is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 16, 2026 10:58 AM EDT.

The active forecast window currently covers Apr 19 to Apr 22, 2026 for Sag Harbor, NY.

Page Snapshot

Page focus
city weather
Forecast window
Apr 19 to Apr 22, 2026
Latest sync
Apr 16, 2026 10:58 AM EDT
Forecast office
OKX
Source
NOAA / NWS
Next High
55°F
Sunday
Next Low
37°F
Sunday Night
Rain Outlook
6
Periods mentioning precipitation
Windiest
13 mph
Monday

Daily Outlook

Today
Apr 19
Rain Showers Likely
55 °F
/ 37°F
Wind 6 to 12 mph
Mon
Apr 20
Slight Chance Rain And Snow Showers
47 °F
/ 35°F
Wind 13 mph
Tue
Apr 21
Sunny
50 °F
/ 42°F
Wind 10 mph
Wed
Apr 22
Slight Chance Rain Showers
57 °F
/ 44°F
Wind 10 mph

This Week in Sag Harbor

Wednesday looks like the warmest upcoming period in Sag Harbor at 57 degrees F.

Monday Night is the coolest period ahead with temperatures near 35 degrees F.

The strongest winds are forecast for Monday at about 13 mph NW.

Precipitation is mentioned in 6 upcoming forecast periods.

Forecast Details

Last updated
Apr 16, 2026 10:58 AM EDT
Coverage
4 days
Time zone
America/New_York
Forecast office
OKX
Radar station
KOKX

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Sunday Night
Apr 19
37°F
Rain Showers Likely then Slight Chance Rain And Snow Showers
12 mph NW

Rain showers likely before 5am, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.

Monday
Apr 20
47°F
Slight Chance Rain And Snow Showers
13 mph NW

A slight chance of rain and snow showers. Mostly sunny, with a high near 47.

Monday Night
Apr 20
35°F
Slight Chance Rain Showers then Mostly Clear
9 to 13 mph NW

A slight chance of rain showers before 8pm. Mostly clear, with a low around 35.

Tuesday
Apr 21
50°F
Sunny
10 mph W

Sunny, with a high near 50.

Tuesday Night
Apr 21
42°F
Partly Cloudy
12 mph SW

Partly cloudy, with a low around 42.

Wednesday
Apr 22
57°F
Slight Chance Rain Showers
10 mph SW

A slight chance of rain showers after 8am. Partly sunny, with a high near 57.

Wednesday Night
Apr 22
44°F
Slight Chance Rain Showers then Partly Cloudy
9 mph SW

A slight chance of rain showers before 8pm. Partly cloudy, with a low around 44.

Detailed Forecast

Period Conditions Temp Wind
Sunday
Apr 19
Rain Showers Likely
55°F
6 to 12 mph
SW
Sunday Night
Apr 19
Rain Showers Likely then Slight Chance Rain And Snow Showers
37°F
12 mph
NW
Monday
Apr 20
Slight Chance Rain And Snow Showers
47°F
13 mph
NW
Monday Night
Apr 20
Slight Chance Rain Showers then Mostly Clear
35°F
9 to 13 mph
NW
Tuesday
Apr 21
Sunny
50°F
10 mph
W
Tuesday Night
Apr 21
Partly Cloudy
42°F
12 mph
SW
Wednesday
Apr 22
Slight Chance Rain Showers
57°F
10 mph
SW
Wednesday Night
Apr 22
Slight Chance Rain Showers then Partly Cloudy
44°F
9 mph
SW
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Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.