Water Temperature of Cambridge Reservoir Tributary 3 in Waltham, MA

Current Water Temperature

66.2°F

Measurement Time: Tuesday, September 8, 2026, 10:40 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

78°F
Mostly Sunny
Mostly Sunny
52%
N 6 mph
59°F

Weather Forecast

Mostly Sunny
This Afternoon
79°F - Mostly Sunny
Mostly Cloudy
Tonight
59°F - Mostly Cloudy
Mostly Cloudy
Wednesday
81°F - Mostly Cloudy
Chance Rain Showers
Wednesday Night
70°F - Chance Rain Showers
Chance Rain Showers then Mostly Sunny
Thursday
85°F - Chance Rain Showers then Mostly Sunny
Mostly Cloudy
Thursday Night
62°F - Mostly Cloudy
Sunny
Friday
76°F - Sunny
Clear
Friday Night
54°F - Clear
Sunny
Saturday
76°F - Sunny
Partly Cloudy
Saturday Night
60°F - Partly Cloudy
Mostly Sunny then Slight Chance Rain Showers
Sunday
80°F - Mostly Sunny then Slight Chance Rain Showers
Slight Chance Rain Showers
Sunday Night
64°F - Slight Chance Rain Showers
Mostly Sunny then Slight Chance Rain Showers
Monday
79°F - Mostly Sunny then Slight Chance Rain Showers
Partly Cloudy
Monday Night
59°F - Partly Cloudy

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: 6:18 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

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: 6:22 AM
Sun Transit: 12:41 AM
Sunset: 7:00 PM
Daylight: 12 hrs 38 mins
Moonrise: 8:00 AM
Moon Transit: 1:49 PM
Moonset: 7:27 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

3:31 AM - 6:01 AM
1:19 PM - 3:49 PM

Minor Periods

6:57 PM - 8:27 PM
7:30 AM - 9:00 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: 6:22 AM
Sun Transit: 12:41 AM
Sunset: 7:00 PM
Daylight: 12 hrs 38 mins
Moonrise: 8:00 AM
Moon Transit: 1:49 PM
Moonset: 7:27 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

3:31 AM - 6:01 AM
1:19 PM - 3:49 PM

Minor Periods

6:57 PM - 8:27 PM
7:30 AM - 9:00 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: 6:23 AM
Sun Transit: 12:40 AM
Sunset: 6:58 PM
Daylight: 12 hrs 35 mins
Moonrise: 9:09 AM
Moon Transit: 2:34 PM
Moonset: 7:50 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

4:16 AM - 6:46 AM
2:04 PM - 4:34 PM

Minor Periods

7:20 PM - 8:50 PM
8:39 AM - 10:09 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: 6:23 AM
Sun Transit: 12:40 AM
Sunset: 6:58 PM
Daylight: 12 hrs 35 mins
Moonrise: 9:09 AM
Moon Transit: 2:34 PM
Moonset: 7:50 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

4:16 AM - 6:46 AM
2:04 PM - 4:34 PM

Minor Periods

7:20 PM - 8:50 PM
8:39 AM - 10:09 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: 6:24 AM
Sun Transit: 12:40 AM
Sunset: 6:56 PM
Daylight: 12 hrs 32 mins
Moonrise: 10:18 AM
Moon Transit: 3:20 PM
Moonset: 8:15 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

5:02 AM - 7:32 AM
2:50 PM - 5:20 PM

Minor Periods

7:45 PM - 9:15 PM
9:48 AM - 11:18 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: 6:24 AM
Sun Transit: 12:40 AM
Sunset: 6:56 PM
Daylight: 12 hrs 32 mins
Moonrise: 10:18 AM
Moon Transit: 3:20 PM
Moonset: 8:15 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

5:02 AM - 7:32 AM
2:50 PM - 5:20 PM

Minor Periods

7:45 PM - 9:15 PM
9:48 AM - 11:18 AM

Action Rating: 2 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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