Water Temperature of Cambridge Reservoir Tributary 3 in Waltham, MA

Current Water Temperature

61.2°F

Measurement Time: Thursday, June 18, 2026, 9:40 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

75.9°F
Partly cloudy
Partly cloudy
78.8°F
83.6°F
71%
S 17.4 mph
20.4 mph
79.5°F
70.8°F
0 in
50%
9 mi
998 mbar
3.4

Five Day Weather Forecast

Moderate rain
Thu
H: 82°F
L: 63°F
Sunny
Fri
H: 82°F
L: 64°F
Partly Cloudy
Sat
H: 77°F
L: 58°F
Partly Cloudy
Sun
H: 79°F
L: 54°F
Moderate rain
Mon
H: 75°F
L: 57°F

Air Quality

AQI: 1 - Good
PM2.5: 11.5 μg/m3
PM10: 14.6 μg/m3
Carbon Monoxide: 129 μg/m3
Nitrogen Dioxide: 2 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 114 μg/m3

Astronomical

Sunrise: 5:07 AM
Sun Transit: 12:46 AM
Sunset: 8:25 PM
Daylight: 15 hrs 18 mins
Moonrise: 9:02 AM
Moon Transit: 4:25 PM
Moonset: 12:04 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

6:04 AM - 8:34 AM
3:55 PM - 6:25 PM

Minor Periods

8:32 AM - 10:02 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Gale Warning issued June 18 at 3:41AM EDT until June 18 at 7:00PM EDT by NWS Boston/Norton MA

Effective: Thu June 18, 2026, 3:41 AM
Expires: Thu June 18, 2026, 4:45 PM

* WHAT...South winds 20 to 25 kt with gusts up to 35 kt and waves around 2 feet expected. * WHERE...Boston Harbor. * WHEN...From 1 PM this afternoon to 7 PM EDT this evening. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.

Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions.


Gale Warning issued June 18 at 2:22AM EDT until June 18 at 7:00PM EDT by NWS Boston/Norton MA

Effective: Thu June 18, 2026, 2:22 AM
Expires: Thu June 18, 2026, 4:15 PM

* WHAT...South winds 20 to 25 kt with gusts up to 35 kt and waves around 2 feet expected. * WHERE...Boston Harbor. * WHEN...From 1 PM this afternoon to 7 PM EDT this evening. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.

Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions.
Thursday, June 18, 2026

Weather Forecast

Moderate rain
82°F
62.6°F
71.8°F
72%
0.33 in
67%
0%
17.7 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 10.21 μg/m3
PM10: 12.82 μg/m3
Carbon Monoxide: 143.63 μg/m3
Nitrogen Dioxide: 6.77 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 97.08 μg/m3

Astronomical

Sunrise: 5:07 AM
Sun Transit: 12:46 AM
Sunset: 8:25 PM
Daylight: 15 hrs 18 mins
Moonrise: 9:02 AM
Moon Transit: 4:25 PM
Moonset: 12:04 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

6:04 AM - 8:34 AM
3:55 PM - 6:25 PM

Minor Periods

8:32 AM - 10:02 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, June 19, 2026

Weather Forecast

Sunny
81.6°F
63.8°F
71.3°F
49%
0 in
2%
0%
15.9 mph
9.2


Air Quality

AQI: 1 - Good
PM2.5: 3.37 μg/m3
PM10: 3.53 μg/m3
Carbon Monoxide: 125.42 μg/m3
Nitrogen Dioxide: 3.56 μg/m3
Sulphur Dioxide: 0.57 μg/m3
Ozone: 89.71 μg/m3

Astronomical

Sunrise: 5:08 AM
Sun Transit: 12:46 AM
Sunset: 8:26 PM
Daylight: 15 hrs 18 mins
Moonrise: 10:19 AM
Moon Transit: 5:15 PM
Moonset: 12:33 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

6:55 AM - 9:25 AM
4:45 PM - 7:15 PM

Minor Periods

9:49 AM - 11:19 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, June 20, 2026

Weather Forecast

Partly Cloudy
76.9°F
58.1°F
67.7°F
57%
0 in
17%
0%
15 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 2.39 μg/m3
PM10: 2.44 μg/m3
Carbon Monoxide: 115.08 μg/m3
Nitrogen Dioxide: 3.3 μg/m3
Sulphur Dioxide: 0.48 μg/m3
Ozone: 74.46 μg/m3

Astronomical

Sunrise: 5:08 AM
Sun Transit: 12:46 AM
Sunset: 8:26 PM
Daylight: 15 hrs 18 mins
Moonrise: 11:30 AM
Moon Transit: 6:00 PM
Moonset: 12:58 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

7:42 AM - 10:12 AM
5:30 PM - 8:00 PM

Minor Periods

11:00 AM - 12:30 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, June 21, 2026

Weather Forecast

Partly Cloudy
79.4°F
53.8°F
66.4°F
62%
0 in
17%
0%
8.9 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 2.76 μg/m3
PM10: 2.87 μg/m3
Carbon Monoxide: 119.14 μg/m3
Nitrogen Dioxide: 5.63 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 66.79 μg/m3

Astronomical

Sunrise: 5:08 AM
Sun Transit: 12:46 AM
Sunset: 8:26 PM
Daylight: 15 hrs 18 mins
Moonrise: 12:39 AM
Moon Transit: 6:44 PM
Moonset: 12:19 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

8:27 AM - 10:57 AM
6:14 PM - 8:44 PM

Minor Periods

12:09 AM - 1:39 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, June 22, 2026

Weather Forecast

Moderate rain
74.9°F
57°F
63.2°F
78%
0.28 in
75%
0%
5.4 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 10.66 μg/m3
PM10: 13.09 μg/m3
Carbon Monoxide: 186.67 μg/m3
Nitrogen Dioxide: 17.23 μg/m3
Sulphur Dioxide: 0.99 μg/m3
Ozone: 56.89 μg/m3

Astronomical

Sunrise: 5:08 AM
Sun Transit: 12:47 AM
Sunset: 8:26 PM
Daylight: 15 hrs 18 mins
Moonrise: 1:44 PM
Moon Transit: 7:26 PM
Moonset: 12:39 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%

Best Times for Fishing or Hunting

Major Periods

9:09 AM - 11:39 AM
6:56 PM - 9:26 PM

Minor Periods

1:14 PM - 2:44 PM
12:09 AM - 1:39 AM

Action Rating: 2 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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