Sackets Harbor

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

Today’s Forecast:

75°F
Current Temperature
Clear
Station: KART
Observed at: 6:30 pm
Wind: 0 mph | Humidity: 65%
Tonight:A slight chance of rain showers after 3am. Mostly cloudy, with a low around 67. South wind 1 to 9 mph. Chance of precipitation is 20%.
Sunday:Mostly sunny, with a high near 76. Southwest wind 7 to 10 mph.
Sunday Night:A slight chance of rain showers between 2am and 5am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 2 to 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

Today’s Report:

Boating

Excellent
  100 /100

Excellent for boating. High near 75°F. Low rain risk (3%).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100

🚲 Biking

Excellent
  100 /100

Excellent for biking. High near 75°F. Low rain risk (3%).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100

🎪 Outdoor Events / Activities

Excellent
  100 /100

Excellent for outdoor events / activities. High near 75°F. Low rain risk (3%).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Excellent 100/100

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

75°F
Current Temperature
Clear
Station: KART
Observed at: 6:30 pm
Wind: 0 mph | Humidity: 65%
Sun
76° 66°
10%
Mon
78° 67°
30%
Tue
74° 63°
85%
Wed
77° 61°
59%
Thu 🌧
77° 63°
25%
Fri
79° 65°
9%
Sat 🌧
80° --°
16%

7-Day High Temperature Trend

76° Sun 78° Mon 74° Tue 77° Wed 77° Thu 79° Fri 80° Sat

7-Day Low Temperature Trend

66° Sun 67° Mon 63° Tue 61° Wed 63° Thu 65° Fri 50° Sat

📊 7-Day Outdoor Outlook

Good Fair Poor 94 Sun 44 Mon 22 Tue 19 Wed 88 Thu 76 Fri 70 Sat
Forecast data from the National Weather Service  |  Last Updated: July 25, 2026 6:59 pm CDT

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.