Water Temperature of Cambridge Reservoir Tributary 3 in Waltham, MA

Current Water Temperature

65.8°F

Measurement Time: Wednesday, September 2, 2026, 7:40 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

70°F
Mostly Sunny
Mostly Sunny
73%
E 7 mph
61°F

Weather Forecast

Partly Sunny
Today
73°F - Partly Sunny
Mostly Cloudy then Showers And Thunderstorms Likely
Tonight
60°F - Mostly Cloudy then Showers And Thunderstorms Likely
Patchy Fog
Thursday
78°F - Patchy Fog
Chance Showers And Thunderstorms then Partly Cloudy
Thursday Night
63°F - Chance Showers And Thunderstorms then Partly Cloudy
Sunny
Friday
81°F - Sunny
Mostly Clear
Friday Night
60°F - Mostly Clear
Mostly Sunny then Chance Rain Showers
Saturday
73°F - Mostly Sunny then Chance Rain Showers
Chance Rain Showers then Partly Cloudy
Saturday Night
56°F - Chance Rain Showers then Partly Cloudy
Mostly Sunny
Sunday
72°F - Mostly Sunny
Mostly Clear
Sunday Night
55°F - Mostly Clear
Sunny
Labor Day
77°F - Sunny
Partly Cloudy
Monday Night
58°F - Partly Cloudy
Mostly Sunny
Tuesday
78°F - Mostly Sunny
Mostly Cloudy
Tuesday Night
59°F - Mostly Cloudy

Astronomical

Sunrise: 6:11 AM
Sun Transit: 12:44 AM
Sunset: 7:17 PM
Daylight: 13 hrs 6 mins
Moonrise: 9:43 PM
Moon Transit: 4:39 AM
Moonset: 12:24 AM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:09 AM - 6:39 AM
7:12 PM - 9:42 PM

Minor Periods

9:13 PM - 10:43 PM
11:54 AM - 1:24 PM

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: 6:11 AM
Sun Transit: 12:44 AM
Sunset: 7:17 PM
Daylight: 13 hrs 6 mins
Moonrise: 9:43 PM
Moon Transit: 4:39 AM
Moonset: 12:24 AM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:09 AM - 6:39 AM
7:12 PM - 9:42 PM

Minor Periods

9:13 PM - 10:43 PM
11:54 AM - 1:24 PM

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: 6:11 AM
Sun Transit: 12:44 AM
Sunset: 7:17 PM
Daylight: 13 hrs 6 mins
Moonrise: 9:43 PM
Moon Transit: 4:39 AM
Moonset: 12:24 AM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:09 AM - 6:39 AM
7:12 PM - 9:42 PM

Minor Periods

9:13 PM - 10:43 PM
11:54 AM - 1:24 PM

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: 6:12 AM
Sun Transit: 12:44 AM
Sunset: 7:15 PM
Daylight: 13 hrs 3 mins
Moonrise: 10:27 PM
Moon Transit: 5:35 AM
Moonset: 1:40 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:05 AM - 7:35 AM
8:11 PM - 10:41 PM

Minor Periods

9:57 PM - 11:27 PM
1:10 PM - 2:40 PM

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: 6:12 AM
Sun Transit: 12:44 AM
Sunset: 7:15 PM
Daylight: 13 hrs 3 mins
Moonrise: 10:27 PM
Moon Transit: 5:35 AM
Moonset: 1:40 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:05 AM - 7:35 AM
8:11 PM - 10:41 PM

Minor Periods

9:57 PM - 11:27 PM
1:10 PM - 2:40 PM

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: 6:14 AM
Sun Transit: 12:44 AM
Sunset: 7:14 PM
Daylight: 13 hrs mins
Moonrise: 11:22 PM
Moon Transit: 6:35 AM
Moonset: 2:52 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:05 AM - 8:35 AM
9:13 PM - 11:43 PM

Minor Periods

12:00 AM - 12:00 AM
2:22 PM - 3:52 PM

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: 6:14 AM
Sun Transit: 12:44 AM
Sunset: 7:14 PM
Daylight: 13 hrs mins
Moonrise: 11:22 PM
Moon Transit: 6:35 AM
Moonset: 2:52 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:05 AM - 8:35 AM
9:13 PM - 11:43 PM

Minor Periods

12:00 AM - 12:00 AM
2:22 PM - 3:52 PM

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: 6:15 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

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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