Water Temperature of Cambridge Reservoir Tributary 3 in Waltham, MA
Current Water Temperature
40.3°F
Measurement Time: Thursday, February 12, 2026, 11:30 AM 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
32.7°F

Sunny
25.9°F
33°F
47%
NW 7.6 mph
13.4 mph
26.1°F
27.1°F
0 in
0%
9 mi
1012 mbar
0
Five Day Weather Forecast

Thu
H: 37°F
L: 17°F

Fri
H: 38°F
L: 12°F

Sat
H: 36°F
L: 22°F

Sun
H: 29°F
L: 18°F

Mon
H: 35°F
L: 16°F
Air Quality
AQI:
2 - Moderate
PM2.5:
6.65 μg/m3
PM10:
6.95 μg/m3
Carbon Monoxide: 191.85 μg/m3
Nitrogen Dioxide: 15.65 μg/m3
Sulphur Dioxide: 2.75 μg/m3
Ozone: 75 μg/m3
Nitrogen Dioxide: 15.65 μg/m3
Sulphur Dioxide: 2.75 μg/m3
Ozone: 75 μg/m3
Astronomical
Sunrise: 6:46 AM
Sun Transit: 12:00 AM
Sunset: 5:13 PM
Daylight: 10 hrs 28 mins
Sun Transit: 12:00 AM
Sunset: 5:13 PM
Daylight: 10 hrs 28 mins
Moonrise: 3:50 AM
Moon Transit: 8:00 AM
Moonset: 12:09 AM
Moon Phase: Waning Crescent
Moon Illumination: 12.2%
Moon Transit: 8:00 AM
Moonset: 12:09 AM
Moon Phase: Waning Crescent
Moon Illumination: 12.2%
Best Times for Fishing or Hunting
Major Periods
7:30 AM - 10:00 AM12:00 AM - 12:00 AM
Minor Periods
11:39 AM - 1:09 PM3:20 AM - 4:50 AM
Action Rating: 2 out of 5
Thursday, February 12, 2026
Weather Forecast
Sunny
37.2°F
16.5°F
25.5°F
67%
0 in
0%
0%
11.2 mph
0.5
Air Quality
AQI:
1 - Good
PM2.5:
5.12 μg/m3
PM10:
5.25 μg/m3
Carbon Monoxide: 220.37 μg/m3
Nitrogen Dioxide: 12.39 μg/m3
Sulphur Dioxide: 2.79 μg/m3
Ozone: 69.84 μg/m3
Nitrogen Dioxide: 12.39 μg/m3
Sulphur Dioxide: 2.79 μg/m3
Ozone: 69.84 μg/m3
Astronomical
Sunrise: 6:46 AM
Sun Transit: 12:00 AM
Sunset: 5:13 PM
Daylight: 10 hrs 28 mins
Sun Transit: 12:00 AM
Sunset: 5:13 PM
Daylight: 10 hrs 28 mins
Moonrise: 3:50 AM
Moon Transit: 8:00 AM
Moonset: 12:09 AM
Moon Phase: Waning Crescent
Moon Illumination: 12.2%
Moon Transit: 8:00 AM
Moonset: 12:09 AM
Moon Phase: Waning Crescent
Moon Illumination: 12.2%
Best Times for Fishing or Hunting
Major Periods
7:30 AM - 10:00 AM12:00 AM - 12:00 AM
Minor Periods
11:39 AM - 1:09 PM3:20 AM - 4:50 AM
Action Rating: 2 out of 5
Friday, February 13, 2026
Weather Forecast
Sunny
38.3°F
11.5°F
23.9°F
66%
0 in
0%
0%
5.8 mph
0.5
Air Quality
AQI:
1 - Good
PM2.5:
7.35 μg/m3
PM10:
7.7 μg/m3
Carbon Monoxide: 190.45 μg/m3
Nitrogen Dioxide: 18.27 μg/m3
Sulphur Dioxide: 3 μg/m3
Ozone: 71.16 μg/m3
Nitrogen Dioxide: 18.27 μg/m3
Sulphur Dioxide: 3 μg/m3
Ozone: 71.16 μg/m3
Astronomical
Sunrise: 6:44 AM
Sun Transit: 12:00 AM
Sunset: 5:15 PM
Daylight: 10 hrs 30 mins
Sun Transit: 12:00 AM
Sunset: 5:15 PM
Daylight: 10 hrs 30 mins
Moonrise: 4:40 AM
Moon Transit: 8:51 AM
Moonset: 1:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 5.8%
Moon Transit: 8:51 AM
Moonset: 1:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 5.8%
Best Times for Fishing or Hunting
Major Periods
8:21 AM - 10:51 AM12:00 AM - 12:00 AM
Minor Periods
12:37 AM - 2:07 PM4:10 AM - 5:40 AM
Action Rating: 2 out of 5
Saturday, February 14, 2026
Weather Forecast
Partly Cloudy
36°F
22.3°F
29°F
72%
0 in
0%
0%
6.7 mph
0.4
Air Quality
AQI:
1 - Good
PM2.5:
14.56 μg/m3
PM10:
14.82 μg/m3
Carbon Monoxide: 234.21 μg/m3
Nitrogen Dioxide: 32.19 μg/m3
Sulphur Dioxide: 4.28 μg/m3
Ozone: 55.2 μg/m3
Nitrogen Dioxide: 32.19 μg/m3
Sulphur Dioxide: 4.28 μg/m3
Ozone: 55.2 μg/m3
Astronomical
Sunrise: 6:43 AM
Sun Transit: 12:00 AM
Sunset: 5:16 PM
Daylight: 10 hrs 33 mins
Sun Transit: 12:00 AM
Sunset: 5:16 PM
Daylight: 10 hrs 33 mins
Moonrise: 5:21 AM
Moon Transit: 9:43 AM
Moonset: 2:12 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.7%
Moon Transit: 9:43 AM
Moonset: 2:12 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:13 AM - 11:43 AM
Minor Periods
1:42 PM - 3:12 PM4:51 AM - 6:21 AM
Action Rating: 3 out of 5
Sunday, February 15, 2026
Weather Forecast
Sunny
28.9°F
17.7°F
26.1°F
62%
0 in
0%
0%
8.9 mph
0.5
Air Quality
AQI:
2 - Moderate
PM2.5:
22.82 μg/m3
PM10:
23.2 μg/m3
Carbon Monoxide: 296.31 μg/m3
Nitrogen Dioxide: 43.6 μg/m3
Sulphur Dioxide: 5.41 μg/m3
Ozone: 33.72 μg/m3
Nitrogen Dioxide: 43.6 μg/m3
Sulphur Dioxide: 5.41 μg/m3
Ozone: 33.72 μg/m3
Astronomical
Sunrise: 6:42 AM
Sun Transit: 12:00 AM
Sunset: 5:17 PM
Daylight: 10 hrs 35 mins
Sun Transit: 12:00 AM
Sunset: 5:17 PM
Daylight: 10 hrs 35 mins
Moonrise: 5:56 AM
Moon Transit: 10:34 AM
Moonset: 3:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%
Moon Transit: 10:34 AM
Moonset: 3:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%
Best Times for Fishing or Hunting
Major Periods
12:14 AM - 2:44 AM10:04 AM - 12:34 AM
Minor Periods
2:50 PM - 4:20 PM5:26 AM - 6:56 AM
Action Rating: 3 out of 5
Monday, February 16, 2026
Weather Forecast
Partly Cloudy
35.4°F
16.1°F
26.6°F
88%
0 in
0%
3%
4.7 mph
0.5
Air Quality
AQI:
2 - Moderate
PM2.5:
21.97 μg/m3
PM10:
25.23 μg/m3
Carbon Monoxide: 354.1 μg/m3
Nitrogen Dioxide: 35.54 μg/m3
Sulphur Dioxide: 4.92 μg/m3
Ozone: 39.77 μg/m3
Nitrogen Dioxide: 35.54 μg/m3
Sulphur Dioxide: 4.92 μg/m3
Ozone: 39.77 μg/m3
Astronomical
Sunrise: 6:40 AM
Sun Transit: 12:00 AM
Sunset: 5:18 PM
Daylight: 10 hrs 38 mins
Sun Transit: 12:00 AM
Sunset: 5:18 PM
Daylight: 10 hrs 38 mins
Moonrise: 6:24 AM
Moon Transit: 11:23 AM
Moonset: 4:31 PM
Moon Phase: New
Moon Illumination: 0.9%
Moon Transit: 11:23 AM
Moonset: 4:31 PM
Moon Phase: New
Moon Illumination: 0.9%
Best Times for Fishing or Hunting
Major Periods
1:03 AM - 3:33 AM10:53 AM - 1:23 PM
Minor Periods
4:01 PM - 5:31 PM5:54 AM - 7:24 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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