Water Temperature of Cambridge Reservoir Tributary 3 in Waltham, MA

Current Water Temperature

66.0°F

Measurement Time: Friday, July 24, 2026, 4:40 PM 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

72°F
Clear
Clear
76.2°F
69.6°F
49%
S 8.1 mph
13.9 mph
69.6°F
52.7°F
0 in
0%
9 mi
1022 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 86°F
L: 56°F
Sunny
Sat
H: 81°F
L: 57°F
Sunny
Sun
H: 79°F
L: 53°F
Sunny
Mon
H: 83°F
L: 51°F
Light rain shower
Tue
H: 81°F
L: 59°F

Air Quality

AQI: 1 - Good
PM2.5: 12.6 μg/m3
PM10: 13.3 μg/m3
Carbon Monoxide: 178 μg/m3
Nitrogen Dioxide: 12.3 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 99 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 12:51 AM
Sunset: 8:13 PM
Daylight: 14 hrs 44 mins
Moonrise: 4:56 PM
Moon Transit: 9:12 PM
Moonset: 12:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

10:52 AM - 1:22 PM
8:42 PM - 11:12 PM

Minor Periods

4:26 PM - 5:56 PM
12:17 AM - 1:47 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
86.4°F
55.6°F
70.2°F
60%
0 in
3%
0%
9.6 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 12.33 μg/m3
PM10: 12.9 μg/m3
Carbon Monoxide: 193.38 μg/m3
Nitrogen Dioxide: 13.34 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 91.13 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 12:51 AM
Sunset: 8:13 PM
Daylight: 14 hrs 44 mins
Moonrise: 4:56 PM
Moon Transit: 9:12 PM
Moonset: 12:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

10:52 AM - 1:22 PM
8:42 PM - 11:12 PM

Minor Periods

4:26 PM - 5:56 PM
12:17 AM - 1:47 AM

Action Rating: 3 out of 5

Saturday, July 25, 2026

Weather Forecast

Sunny
80.5°F
57.4°F
68.3°F
56%
0 in
2%
0%
9.8 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 11.77 μg/m3
PM10: 12.44 μg/m3
Carbon Monoxide: 144.75 μg/m3
Nitrogen Dioxide: 10.73 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 94.17 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 12:51 AM
Sunset: 8:12 PM
Daylight: 14 hrs 42 mins
Moonrise: 5:52 PM
Moon Transit: 10:03 PM
Moonset: 1:26 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

11:43 AM - 2:13 PM
12:00 AM - 12:00 AM

Minor Periods

5:22 PM - 6:52 PM
12:56 AM - 2:26 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
78.9°F
53.1°F
65.2°F
58%
0 in
3%
0%
8.7 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 10.94 μg/m3
PM10: 12.31 μg/m3
Carbon Monoxide: 141.04 μg/m3
Nitrogen Dioxide: 12.05 μg/m3
Sulphur Dioxide: 0.92 μg/m3
Ozone: 78.58 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 12:51 AM
Sunset: 8:11 PM
Daylight: 14 hrs 40 mins
Moonrise: 6:42 PM
Moon Transit: 10:55 PM
Moonset: 2:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

12:34 AM - 3:04 PM
12:00 AM - 12:00 AM

Minor Periods

6:12 PM - 7:42 PM
1:45 AM - 3:15 AM

Action Rating: 3 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
83°F
51.2°F
66.5°F
53%
0 in
2%
0%
8.7 mph
7.4


Air Quality

AQI: 1 - Good
PM2.5: 7.48 μg/m3
PM10: 8.67 μg/m3
Carbon Monoxide: 153.67 μg/m3
Nitrogen Dioxide: 9.83 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 61.54 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 12:51 AM
Sunset: 8:10 PM
Daylight: 14 hrs 38 mins
Moonrise: 7:23 PM
Moon Transit: 11:45 PM
Moonset: 3:11 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

1:25 PM - 3:55 PM
12:00 AM - 12:00 AM

Minor Periods

6:53 PM - 8:23 PM
2:41 AM - 4:11 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Light rain shower
81.2°F
58.8°F
69.4°F
75%
0.15 in
69%
0%
11.2 mph
3.9


Air Quality

AQI: 1 - Good
PM2.5: 6.7 μg/m3
PM10: 7.93 μg/m3
Carbon Monoxide: 161.56 μg/m3
Nitrogen Dioxide: 11.62 μg/m3
Sulphur Dioxide: 0.86 μg/m3
Ozone: 50.22 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 12:51 AM
Sunset: 8:09 PM
Daylight: 14 hrs 36 mins
Moonrise: 7:58 PM
Moon Transit: 12:00 AM
Moonset: 4:13 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:15 PM - 4:45 PM

Minor Periods

7:28 PM - 8:58 PM
3:43 AM - 5:13 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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