Sackets Harbor, NY

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This image was taken in Sackets Harbor, NY looking out onto Lake Ontario.

Today’s Forecast:

☁
41°F
High: 43° | Low: 33°
Current Temperature
Partly Cloudy
Station: KART
Observed at: 9:15 am CST on 11/12/26
Wind: 11 mph | Humidity: 75%
Today:A chance of rain showers before 5pm. Cloudy, with a high near 43. Northeast wind around 17 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Tonight:Cloudy, with a low around 33. Northeast wind 13 to 17 mph. New rainfall amounts less than a tenth of an inch possible.
Friday:Mostly cloudy, with a high near 41. North wind 10 to 14 mph.
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Today’s Report:

⛵ Boating

  12 /100

Not Recommended for boating. High near 40°F. Low rain risk (10%). Breezy winds (14 mph). Temperatures outside comfort limits (40°F).

  • Temp: Unfavorable weather factor
  • Rain: Favorable conditions
  • Wind: Marginal weather factor
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 23/100
Not Recommended for boating. High near 39°F. Low rain risk (23%). Light wind (10 mph). Temperatures outside comfort limits (39°F).

🚲 Biking

  20 /100

Not Recommended for biking. High near 40°F. Low rain risk (10%). Light wind (14 mph). Temperatures outside comfort limits (40°F).

  • Temp: Unfavorable weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 20/100
Not Recommended for biking. High near 39°F. Low rain risk (23%). Light wind (10 mph). Temperatures outside comfort limits (39°F).

🎪 Outdoor Events / Activities

  20 /100

Not Recommended for outdoor events / activities. High near 40°F. Low rain risk (10%). Light wind (14 mph). Temperatures outside comfort limits (40°F).

  • Temp: Unfavorable weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 18/100
Not Recommended for outdoor events / activities. High near 39°F. Risk of rain (23%). Light wind (10 mph). Temperatures outside comfort limits (39°F).

About Sackets Harbor

Sackets Harbor is a New York destination for a historic Lake Ontario harbor with cycling, events, boating, and winter trails nearby.

Make the Most of a Sackets Harbor Day

Match the route, launch, facility, or turnaround time to precipitation, wind, temperature, visibility, water conditions, snow or ice, and seasonal access. Keep a shorter or more sheltered alternative ready.

Weather Tips for Sackets Harbor, NY

  • Check official access notices, alerts, trail or road conditions, and local forecasts before leaving.
  • Check wind, waves, current, water temperature, ice reports, and lightning risk before launching or stepping onto frozen water; no forecast alone proves that ice is safe.
  • Bring layers, water, navigation, sun protection, and traction or flotation appropriate to the season and activity.
  • Allow extra time for traffic, limited winter daylight, lake-effect snow, freeze-thaw mud, and seasonal facility schedules.

Nearby Towns and Areas

This page can also be useful when planning outdoor time near:

  • Henderson Harbor
  • Black River Bay
  • Watertown
  • Westcott Beach
  • Chaumont Bay

Plan Around the Conditions

Choose the safest version of a Sackets Harbor day by matching the activity to current wind, precipitation, temperature, visibility, water or snow conditions, access, and daylight.

7-Day Forecast for Sackets Harbor

☁
41°F
High: 43° | Low: 33°
Current Temperature
Partly Cloudy
Station: KART
Observed at: 9:15 am CST on 11/12/26
Wind: 11 mph | Humidity: 75%
Thu 🌧
43° 33°
52%
Fri ☁
41° 34°
10%
Sat 🌧
43° 35°
23%
Sun 🌧
46° 33°
17%
Mon ⛅
45° 34°
1%
Tue ⛅
49° 36°
0%
Wed ⛅
51° 37°
1%

7-Day High Temperature Trend

43° Thu 41° Fri 43° Sat 46° Sun 45° Mon 49° Tue 51° Wed

7-Day Low Temperature Trend

33° Thu 34° Fri 35° Sat 33° Sun 34° Mon 36° Tue 37° Wed

📊 7-Day Outdoor Outlook

Good Fair Poor 19 Thu 20 Fri 20 Sat 20 Sun 20 Mon 20 Tue 75 Wed
Forecast data from the National Weather Service  |  Last Updated: November 12, 2026 9:09 pm CST

Weather by Season

Winter

Winter at Sackets Harbor brings cold, shorter daylight, and periodic snow or ice. Snow and ice can support the listed winter activities, but conditions and access must be confirmed locally. Cold water, wind, waves, and rapidly changing shore conditions remain serious hazards.

Spring

Spring is changeable, with rain, mud, snowmelt, rising water, and lingering ice in shaded or elevated terrain. Lower routes and developed facilities generally become usable before exposed, backcountry, or high-elevation areas.

Summer

Summer usually provides the broadest access, but heat, humidity, thunderstorms, crowds, and occasional wildfire smoke can alter plans. Start exposed outings early and keep a weather-safe turnaround point.

Fall

Fall brings cooler air, foliage crowds, shorter daylight, and increasing wind. Early snow or ice can reach northern and elevated areas while lower valleys and coastal destinations remain milder.

Key Climate Data Points

  • Annual average temperature: around 44–48°F, using the relevant local and elevation context.
  • Annual snowfall: commonly 70–130 inches, with sharp lake-effect differences.
  • Warmest months: July and August are normally warmest.
  • Coolest months: January is typically coolest, with February similarly cold in northern and elevated areas.
  • Wettest season: precipitation is distributed through the year, with late spring through summer often wettest from rain and thunderstorms.
  • Driest season: no season is reliably dry statewide; early fall often provides the most stable outdoor windows.
  • Best outdoor window: June through October for warm-season access, with midwinter best only where established winter recreation is supported.