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Photo: Cleaning machine in Chestnut Hill Reservoir, September 2024 by Pi.1415926535 (CC BY-SA 4.0) License

Chestnut Hill Reservoir

Reservoir · Chestnut Hill, Massachusetts

Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 70°F, within the comfortable 70–86°F range.

  • Water temperature is 70°F, within the comfortable 70–86°F range.
Good to swimGood conditions todayWheelchair accessible entrance

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Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 70°F, within the comfortable 70–86°F range.

  • Water temperature is 70°F, within the comfortable 70–86°F range. NOAA buoy 44029, as of Aug 22, 7:30 AM UTC
Water temp
70°F
21°C

No official beach-advisory feed for Massachusetts yet — follow posted signs and local guidance.

Live data from NOAA buoy 44029 (33.1 mi away), as of Aug 22, 7:30 AM UTC.

Weather at Chestnut Hill Reservoir

H: 71° L: 62°
Overcast
Overcast
66°
|
Feels like 68°
Precipitation
88%
Humidity
92%
Wind
6 mph
UV Index
0
Water Conditions:
🏊Cool but swimmable
12 AM
Overcast
68°
3 AM
Overcast
66°
6 AM
Patchy rain nearby
66°
9 AM
Light drizzle
69°
12 PM
Light drizzle
71°
3 PM
Light rain
68°
6 PM
Mist
62°
9 PM
Mist
62°

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Frequently asked questions

Where is Chestnut Hill Reservoir?
Chestnut Hill Reservoir is a reservoir in Chestnut Hill, Massachusetts.
What is the water temperature at Chestnut Hill Reservoir?
As of August 22, 2026, the water temperature at Chestnut Hill Reservoir in Chestnut Hill, Massachusetts is 70°F (21°C), measured by NOAA buoy 44029, 33.1 miles away.
Can you swim at Chestnut Hill Reservoir?
Comfortable for a swim today: water temperature is 70°F, within the comfortable 70–86°F range. Checked August 22, 2026.
How is Chestnut Hill Reservoir rated?
Chestnut Hill Reservoir in Chestnut Hill, Massachusetts has an average visitor rating of 4.8 out of 5, based on 84 reviews.

Visitor Reviews

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Best Times to Visit

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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

Chestnut Hill Reservoir, Chestnut Hill, MA 02467

Chestnut Hill, Massachusetts 02467

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Accessibility

Wheelchair accessible entrance