Water Temperature of Cambridge Reservoir Tributary 3 in Waltham, MA

Current Water Temperature

64.2°F

Measurement Time: Sunday, July 12, 2026, 3:40 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

79°F
Sunny
Sunny
78.6°F
76.7°F
36%
SSE 6 mph
12.7 mph
76.1°F
47.5°F
0 in
0%
9 mi
1021 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 89°F
L: 59°F
Sunny
Mon
H: 89°F
L: 63°F
Sunny
Tue
H: 97°F
L: 68°F
Sunny
Wed
H: 93°F
L: 74°F
Sunny
Thu
H: 85°F
L: 62°F

Air Quality

AQI: 1 - Good
PM2.5: 7 μg/m3
PM10: 7.9 μg/m3
Carbon Monoxide: 157 μg/m3
Nitrogen Dioxide: 8.1 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 5:19 AM
Sun Transit: 12:50 AM
Sunset: 8:22 PM
Daylight: 15 hrs 3 mins
Moonrise: 2:44 AM
Moon Transit: 11:00 AM
Moonset: 7:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:34 AM - 3:04 AM
10:30 AM - 1:00 PM

Minor Periods

6:48 PM - 8:18 PM
2:14 AM - 3:44 AM

Action Rating: 3 out of 5

Sunday, July 12, 2026

Weather Forecast

Sunny
88.9°F
58.8°F
73.7°F
54%
0 in
2%
0%
9.4 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 7.63 μg/m3
PM10: 8.5 μg/m3
Carbon Monoxide: 162.75 μg/m3
Nitrogen Dioxide: 10.58 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 69.67 μg/m3

Astronomical

Sunrise: 5:19 AM
Sun Transit: 12:50 AM
Sunset: 8:22 PM
Daylight: 15 hrs 3 mins
Moonrise: 2:44 AM
Moon Transit: 11:00 AM
Moonset: 7:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:34 AM - 3:04 AM
10:30 AM - 1:00 PM

Minor Periods

6:48 PM - 8:18 PM
2:14 AM - 3:44 AM

Action Rating: 3 out of 5

Monday, July 13, 2026

Weather Forecast

Sunny
89.4°F
63°F
74.6°F
56%
0.02 in
36%
0%
14.3 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 9.86 μg/m3
PM10: 10.95 μg/m3
Carbon Monoxide: 151.63 μg/m3
Nitrogen Dioxide: 8.4 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 101.75 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:50 AM
Sunset: 8:22 PM
Daylight: 15 hrs 2 mins
Moonrise: 3:53 AM
Moon Transit: 12:07 AM
Moonset: 8:14 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

1:41 AM - 4:11 AM
11:37 AM - 2:07 PM

Minor Periods

7:44 PM - 9:14 PM
3:23 AM - 4:53 AM

Action Rating: 4 out of 5

Tuesday, July 14, 2026

Weather Forecast

Sunny
96.5°F
67.5°F
81.5°F
56%
0 in
3%
0%
14.3 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 9.36 μg/m3
PM10: 10.35 μg/m3
Carbon Monoxide: 151.92 μg/m3
Nitrogen Dioxide: 6.32 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 113.79 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:50 AM
Sunset: 8:21 PM
Daylight: 15 hrs 1 mins
Moonrise: 5:12 AM
Moon Transit: 1:11 PM
Moonset: 8:58 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

2:46 AM - 5:16 AM
12:41 AM - 3:11 PM

Minor Periods

8:28 PM - 9:58 PM
4:42 AM - 6:12 AM

Action Rating: 5 out of 5

Wednesday, July 15, 2026

Weather Forecast

Sunny
92.6°F
73.6°F
84.2°F
50%
0 in
2%
0%
11.2 mph
7.4


Air Quality

AQI: 1 - Good
PM2.5: 6.4 μg/m3
PM10: 6.6 μg/m3
Carbon Monoxide: 141.88 μg/m3
Nitrogen Dioxide: 5.22 μg/m3
Sulphur Dioxide: 1.04 μg/m3
Ozone: 103.08 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:51 AM
Sunset: 8:20 PM
Daylight: 14 hrs 59 mins
Moonrise: 6:35 AM
Moon Transit: 2:10 PM
Moonset: 9:31 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

3:47 AM - 6:17 AM
1:40 PM - 4:10 PM

Minor Periods

9:01 PM - 10:31 PM
6:05 AM - 7:35 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
85°F
62.1°F
75°F
46%
0 in
2%
0%
15.2 mph
7.4


Air Quality

AQI: 1 - Good
PM2.5: 7.46 μg/m3
PM10: 7.48 μg/m3
Carbon Monoxide: 199.56 μg/m3
Nitrogen Dioxide: 12.03 μg/m3
Sulphur Dioxide: 0.64 μg/m3
Ozone: 62.89 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 12:51 AM
Sunset: 8:20 PM
Daylight: 14 hrs 58 mins
Moonrise: 7:55 AM
Moon Transit: 3:03 PM
Moonset: 9:58 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

4:43 AM - 7:13 AM
2:33 PM - 5:03 PM

Minor Periods

9:28 PM - 10:58 PM
7:25 AM - 8:55 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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