Water Temperature of Cambridge Reservoir Tributary 3 in Waltham, MA

Current Water Temperature

66.2°F

Measurement Time: Saturday, September 5, 2026, 9:40 AM EDT

Temperature Locations

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Local Points of Interest

Hobbs Brook Basin

Cambridge Reservoir Tributary 3

Station Name: CAMBRIDGE RES., UNNAMED TRIB 3, NR LEXINGTON, MA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 197 feet

Nearest Address:
170 Data Dr
Waltham, MA 02451
Middlesex County

GPS Coordinates: 42.4198177, -71.2575565

Nearby Water Temperatures

Cambridge Reservoir, Lincoln, MA (0.7 mi)
Cambridge Reservoir Tributary 2, Lexington, MA (1.1 mi)
Cambridge Reservoir Tributary 1, Lexington, MA (1.2 mi)
Hobbs Brook, Lincoln, MA (1.3 mi)
Stony Brook, Waltham, MA (1.7 mi)
Stony Brook, Weston, MA (2.9 mi)
Stony Brook Tributary, Waltham, MA (3.3 mi)
Shawsheen River, Bedford, MA (3.3 mi)
Stony Brook Tributary, Weston, MA (3.5 mi)
Stony Brook, Weston, MA (3.6 mi)
Stony Brook Reservoir Tributary, Weston, MA (4.5 mi)
Fresh Pond, Cambridge, MA (6.2 mi)
Nashua River, Clinton, MA (20.8 mi)
Gates Brook, West Boylston, MA (26.7 mi)
Stillwater River, Sterling, MA (27.2 mi)

Weather for Waltham, Massachusetts

Current Weather

71°F
Isolated Rain Showers
Isolated Rain Showers
73%
NE 7 mph
62°F

Weather Forecast

Isolated Rain Showers
This Afternoon
72°F - Isolated Rain Showers
Mostly Cloudy
Tonight
56°F - Mostly Cloudy
Mostly Sunny
Sunday
71°F - Mostly Sunny
Mostly Clear
Sunday Night
50°F - Mostly Clear
Sunny
Labor Day
77°F - Sunny
Mostly Clear
Monday Night
58°F - Mostly Clear
Mostly Sunny
Tuesday
78°F - Mostly Sunny
Mostly Cloudy
Tuesday Night
59°F - Mostly Cloudy
Partly Sunny then Slight Chance Rain Showers
Wednesday
77°F - Partly Sunny then Slight Chance Rain Showers
Chance Rain Showers
Wednesday Night
67°F - Chance Rain Showers
Chance Rain Showers then Partly Sunny
Thursday
80°F - Chance Rain Showers then Partly Sunny
Partly Cloudy
Thursday Night
59°F - Partly Cloudy
Mostly Sunny
Friday
72°F - Mostly Sunny
Mostly Clear
Friday Night
55°F - Mostly Clear

Astronomical

Sunrise: 6:15 AM
Sun Transit: 12:43 AM
Sunset: 7:12 PM
Daylight: 12 hrs 57 mins
Moonrise: 12:22 AM
Moon Transit: 7:38 AM
Moonset: 3:54 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
12:00 AM - 12:00 AM

Minor Periods

3:24 PM - 4:54 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 12:43 AM
Sunset: 7:12 PM
Daylight: 12 hrs 57 mins
Moonrise: 12:22 AM
Moon Transit: 7:38 AM
Moonset: 3:54 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
12:00 AM - 12:00 AM

Minor Periods

3:24 PM - 4:54 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 12:43 AM
Sunset: 7:12 PM
Daylight: 12 hrs 57 mins
Moonrise: 12:22 AM
Moon Transit: 7:38 AM
Moonset: 3:54 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
12:00 AM - 12:00 AM

Minor Periods

3:24 PM - 4:54 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 12:43 AM
Sunset: 7:10 PM
Daylight: 12 hrs 55 mins
Moonrise: 12:30 AM
Moon Transit: 8:41 AM
Moonset: 4:45 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:11 AM - 10:41 AM
12:00 AM - 12:00 AM

Minor Periods

4:15 PM - 5:45 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 12:43 AM
Sunset: 7:10 PM
Daylight: 12 hrs 55 mins
Moonrise: 12:30 AM
Moon Transit: 8:41 AM
Moonset: 4:45 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:11 AM - 10:41 AM
12:00 AM - 12:00 AM

Minor Periods

4:15 PM - 5:45 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 12:43 AM
Sunset: 7:09 PM
Daylight: 12 hrs 52 mins
Moonrise: 1:45 AM
Moon Transit: 9:41 AM
Moonset: 5:25 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:11 AM - 11:41 AM

Minor Periods

4:55 PM - 6:25 PM
1:15 AM - 2:45 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 12:43 AM
Sunset: 7:09 PM
Daylight: 12 hrs 52 mins
Moonrise: 1:45 AM
Moon Transit: 9:41 AM
Moonset: 5:25 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:11 AM - 11:41 AM

Minor Periods

4:55 PM - 6:25 PM
1:15 AM - 2:45 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:18 AM
Sun Transit: 12:42 AM
Sunset: 7:07 PM
Daylight: 12 hrs 49 mins
Moonrise: 3:04 AM
Moon Transit: 10:37 AM
Moonset: 5:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

12:15 AM - 2:45 AM
10:07 AM - 12:37 AM

Minor Periods

5:26 PM - 6:56 PM
2:34 AM - 4:04 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:18 AM
Sun Transit: 12:42 AM
Sunset: 7:07 PM
Daylight: 12 hrs 49 mins
Moonrise: 3:04 AM
Moon Transit: 10:37 AM
Moonset: 5:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

12:15 AM - 2:45 AM
10:07 AM - 12:37 AM

Minor Periods

5:26 PM - 6:56 PM
2:34 AM - 4:04 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:19 AM
Sun Transit: 12:42 AM
Sunset: 7:05 PM
Daylight: 12 hrs 46 mins
Moonrise: 4:22 AM
Moon Transit: 11:29 AM
Moonset: 6:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

1:09 AM - 3:39 AM
10:59 AM - 1:29 PM

Minor Periods

5:53 PM - 7:23 PM
3:52 AM - 5:22 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:19 AM
Sun Transit: 12:42 AM
Sunset: 7:05 PM
Daylight: 12 hrs 46 mins
Moonrise: 4:22 AM
Moon Transit: 11:29 AM
Moonset: 6:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

1:09 AM - 3:39 AM
10:59 AM - 1:29 PM

Minor Periods

5:53 PM - 7:23 PM
3:52 AM - 5:22 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:20 AM
Sun Transit: 12:41 AM
Sunset: 7:03 PM
Daylight: 12 hrs 43 mins
Moonrise: 5:37 AM
Moon Transit: 12:18 AM
Moonset: 6:46 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:59 AM - 4:29 AM
11:48 AM - 2:18 PM

Minor Periods

6:16 PM - 7:46 PM
5:07 AM - 6:37 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:20 AM
Sun Transit: 12:41 AM
Sunset: 7:03 PM
Daylight: 12 hrs 43 mins
Moonrise: 5:37 AM
Moon Transit: 12:18 AM
Moonset: 6:46 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:59 AM - 4:29 AM
11:48 AM - 2:18 PM

Minor Periods

6:16 PM - 7:46 PM
5:07 AM - 6:37 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 12:41 AM
Sunset: 7:02 PM
Daylight: 12 hrs 41 mins
Moonrise: 6:50 AM
Moon Transit: 1:04 PM
Moonset: 7:06 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

2:46 AM - 5:16 AM
12:34 AM - 3:04 PM

Minor Periods

6:36 PM - 8:06 PM
6:20 AM - 7:50 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 12:41 AM
Sunset: 7:02 PM
Daylight: 12 hrs 41 mins
Moonrise: 6:50 AM
Moon Transit: 1:04 PM
Moonset: 7:06 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

2:46 AM - 5:16 AM
12:34 AM - 3:04 PM

Minor Periods

6:36 PM - 8:06 PM
6:20 AM - 7:50 AM

Action Rating: 5 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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