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Photo: Otis Reservoir, East Otis MA by John Phelan (CC BY-SA 4.0) License

Otis Reservoir

Lake · Otis, Massachusetts

Good conditions today

This 1,085-acre reservoir offers recreational activities, including water-skiing & fishing.

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Current water conditions

Water temp
79°F
26°C
Comfortable for a swim today. The water's in a comfortable range. Still check depth, currents, and the forecast, and follow any posted advisories before getting in.

Live data from NOAA buoy CXHN6 (40.8 mi away), as of Aug 20, 8:54 PM UTC. Conditions are for general information only and can change quickly — always judge the water in person and follow posted advisories before swimming.

Weather at Otis Reservoir

H: 77° L: 58°
Light drizzle
Light drizzle
70°
|
Feels like 70°
Precipitation
80%
Humidity
80%
Wind
7 mph
UV Index
0.2
Water Conditions:
🏊Cool but swimmable🌧️Rain expected
12 AM
Clear
62°
3 AM
Overcast
60°
6 AM
Clear
58°
9 AM
Sunny
68°
12 PM
Partly Cloudy
74°
3 PM
Cloudy
77°
6 PM
Light drizzle
68°
9 PM
Light rain
62°

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Frequently asked questions

Where is Otis Reservoir?
Otis Reservoir is a lake in Otis, Massachusetts.
What is the water temperature at Otis Reservoir?
As of August 20, 2026, the water temperature at Otis Reservoir in Otis, Massachusetts is 79°F (26°C), measured by NOAA buoy CXHN6, 40.8 miles away.
Can you swim at Otis Reservoir?
There is no fixed answer for Otis Reservoir: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Otis Reservoir in Otis, Massachusetts. Check current water conditions before you go, and follow posted signs and local guidance.
How is Otis Reservoir rated?
Otis Reservoir in Otis, Massachusetts has an average visitor rating of 4.7 out of 5, based on 34 reviews.

Visitor Reviews

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Best Times to Visit

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Right Now
Good conditions for visiting
🏞️ Lakes Tips:
  • Check for boat launch facilities and fees
  • Obtain required fishing licenses before arrival
  • Be aware of lake-specific regulations and restrictions
  • Monitor water quality reports before swimming
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Otis, MA 01029

Otis, Massachusetts 01029

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