Water Temperature of Cambridge Reservoir Tributary 3 in Waltham, MA
Current Water Temperature
38.1°F
Measurement Time: Tuesday, January 20, 2026, 9:30 PM EST
Temperature Locations
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Local Points of Interest
Hobbs Brook BasinCambridge 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
9°F

Clear
-1°F
10.9°F
52%
SW 5.8 mph
9.1 mph
1.1°F
-2.7°F
0 in
0%
9 mi
1031 mbar
0
Five Day Weather Forecast

Wed
H: 31°F
L: 9°F

Thu
H: 42°F
L: 28°F

Fri
H: 27°F
L: 17°F

Sat
H: 14°F
L: 3°F

Sun
H: 14°F
L: 8°F
Air Quality
AQI:
1 - Good
PM2.5:
14.95 μg/m3
PM10:
15.55 μg/m3
Carbon Monoxide: 258.85 μg/m3
Nitrogen Dioxide: 26.65 μg/m3
Sulphur Dioxide: 3.25 μg/m3
Ozone: 44 μg/m3
Nitrogen Dioxide: 26.65 μg/m3
Sulphur Dioxide: 3.25 μg/m3
Ozone: 44 μg/m3
Astronomical
Sunrise: 7:08 AM
Sun Transit: 11:56 AM
Sunset: 4:45 PM
Daylight: 9 hrs 37 mins
Sun Transit: 11:56 AM
Sunset: 4:45 PM
Daylight: 9 hrs 37 mins
Moonrise: 8:45 AM
Moon Transit: 2:14 PM
Moonset: 7:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%
Moon Transit: 2:14 PM
Moonset: 7:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%
Best Times for Fishing or Hunting
Major Periods
3:56 AM - 6:26 AM1:44 PM - 4:14 PM
Minor Periods
7:25 PM - 8:55 PM8:15 AM - 9:45 AM
Action Rating: 2 out of 5
Wednesday, January 21, 2026
Weather Forecast
Sunny
30.9°F
9.3°F
20.2°F
52%
0 in
0%
0%
13.6 mph
0.3
Air Quality
AQI:
1 - Good
PM2.5:
10.94 μg/m3
PM10:
11.47 μg/m3
Carbon Monoxide: 234.69 μg/m3
Nitrogen Dioxide: 22.42 μg/m3
Sulphur Dioxide: 4.45 μg/m3
Ozone: 52.16 μg/m3
Nitrogen Dioxide: 22.42 μg/m3
Sulphur Dioxide: 4.45 μg/m3
Ozone: 52.16 μg/m3
Astronomical
Sunrise: 7:08 AM
Sun Transit: 11:56 AM
Sunset: 4:45 PM
Daylight: 9 hrs 37 mins
Sun Transit: 11:56 AM
Sunset: 4:45 PM
Daylight: 9 hrs 37 mins
Moonrise: 8:45 AM
Moon Transit: 2:14 PM
Moonset: 7:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%
Moon Transit: 2:14 PM
Moonset: 7:55 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%
Best Times for Fishing or Hunting
Major Periods
3:56 AM - 6:26 AM1:44 PM - 4:14 PM
Minor Periods
7:25 PM - 8:55 PM8:15 AM - 9:45 AM
Action Rating: 2 out of 5
Thursday, January 22, 2026
Weather Forecast
Patchy rain nearby
41.5°F
27.6°F
35°F
74%
0.14 in
87%
6%
14.1 mph
0.3
Air Quality
AQI:
1 - Good
PM2.5:
10.38 μg/m3
PM10:
11.64 μg/m3
Carbon Monoxide: 218.93 μg/m3
Nitrogen Dioxide: 17.77 μg/m3
Sulphur Dioxide: 5.05 μg/m3
Ozone: 63.36 μg/m3
Nitrogen Dioxide: 17.77 μg/m3
Sulphur Dioxide: 5.05 μg/m3
Ozone: 63.36 μg/m3
Astronomical
Sunrise: 7:07 AM
Sun Transit: 11:56 AM
Sunset: 4:46 PM
Daylight: 9 hrs 39 mins
Sun Transit: 11:56 AM
Sunset: 4:46 PM
Daylight: 9 hrs 39 mins
Moonrise: 9:06 AM
Moon Transit: 3:00 PM
Moonset: 9:04 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%
Moon Transit: 3:00 PM
Moonset: 9:04 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%
Best Times for Fishing or Hunting
Major Periods
4:41 AM - 7:11 AM2:30 PM - 5:00 PM
Minor Periods
8:34 PM - 10:04 PM8:36 AM - 10:06 AM
Action Rating: 4 out of 5
Friday, January 23, 2026
Weather Forecast
Overcast
26.8°F
16.7°F
23.3°F
49%
0 in
0%
0%
14.5 mph
0.2
Air Quality
AQI:
1 - Good
PM2.5:
6.35 μg/m3
PM10:
6.43 μg/m3
Carbon Monoxide: 208.65 μg/m3
Nitrogen Dioxide: 16.1 μg/m3
Sulphur Dioxide: 3.14 μg/m3
Ozone: 62 μg/m3
Nitrogen Dioxide: 16.1 μg/m3
Sulphur Dioxide: 3.14 μg/m3
Ozone: 62 μg/m3
Astronomical
Sunrise: 7:07 AM
Sun Transit: 11:56 AM
Sunset: 4:48 PM
Daylight: 9 hrs 41 mins
Sun Transit: 11:56 AM
Sunset: 4:48 PM
Daylight: 9 hrs 41 mins
Moonrise: 9:26 AM
Moon Transit: 9:54 AM
Moonset: 10:15 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%
Moon Transit: 9:54 AM
Moonset: 10:15 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%
Best Times for Fishing or Hunting
Major Periods
5:25 AM - 7:55 AM9:24 AM - 11:54 AM
Minor Periods
9:45 PM - 11:15 PM8:56 AM - 10:26 AM
Action Rating: 2 out of 5
Saturday, January 24, 2026
Weather Forecast
Sunny
14°F
3°F
9.4°F
42%
0 in
0%
0%
15 mph
0.4
Air Quality
AQI:
1 - Good
PM2.5:
3.86 μg/m3
PM10:
4.05 μg/m3
Carbon Monoxide: 169.24 μg/m3
Nitrogen Dioxide: 9.84 μg/m3
Sulphur Dioxide: 2.3 μg/m3
Ozone: 65.72 μg/m3
Nitrogen Dioxide: 9.84 μg/m3
Sulphur Dioxide: 2.3 μg/m3
Ozone: 65.72 μg/m3
Astronomical
Sunrise: 7:06 AM
Sun Transit: 11:57 AM
Sunset: 4:49 PM
Daylight: 9 hrs 43 mins
Sun Transit: 11:57 AM
Sunset: 4:49 PM
Daylight: 9 hrs 43 mins
Moonrise: 9:47 AM
Moon Transit: 4:30 PM
Moonset: 11:27 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%
Moon Transit: 4:30 PM
Moonset: 11:27 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%
Best Times for Fishing or Hunting
Major Periods
6:11 AM - 8:41 AM4:00 PM - 6:30 PM
Minor Periods
12:00 AM - 12:00 AM9:17 AM - 10:47 AM
Action Rating: 2 out of 5
Sunday, January 25, 2026
Weather Forecast
Patchy moderate snow
13.9°F
7.5°F
10.6°F
56%
0.03 in
66%
26%
6.9 mph
0
Air Quality
AQI:
1 - Good
PM2.5:
4.83 μg/m3
PM10:
5.01 μg/m3
Carbon Monoxide: 192.51 μg/m3
Nitrogen Dioxide: 15.08 μg/m3
Sulphur Dioxide: 2.52 μg/m3
Ozone: 58 μg/m3
Nitrogen Dioxide: 15.08 μg/m3
Sulphur Dioxide: 2.52 μg/m3
Ozone: 58 μg/m3
Astronomical
Sunrise: 7:05 AM
Sun Transit: 11:57 AM
Sunset: 4:50 PM
Daylight: 9 hrs 45 mins
Sun Transit: 11:57 AM
Sunset: 4:50 PM
Daylight: 9 hrs 45 mins
Moonrise: 10:11 AM
Moon Transit: 5:19 PM
Moonset: 12:27 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%
Moon Transit: 5:19 PM
Moonset: 12:27 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%
Best Times for Fishing or Hunting
Major Periods
6:59 AM - 9:29 AM4:49 PM - 7:19 PM
Minor Periods
9:41 AM - 11:11 AM12:00 AM - 12:00 AM
Action Rating: 4 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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