Water Temperature of Cambridge Reservoir in Lincoln, MA

Current Water Temperature

75.0°F

Measurement Time: Tuesday, July 21, 2026, 8:40 AM EDT

Temperature Locations

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Local Points of Interest

Hobbs Brook Basin

Cambridge Reservoir

Station Name: HOBBS BRK AT TRAPELO RD AT LINCOLN, MA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 167 feet

Nearest Address:
Trapelo Rd
Lincoln, MA 01773
Middlesex County

GPS Coordinates: 42.42166667, -71.2711111

Nearby Water Temperatures

Cambridge Reservoir Tributary 3, Waltham, MA (0.7 mi)
Hobbs Brook, Lincoln, MA (1 mi)
Cambridge Reservoir Tributary 1, Lexington, MA (1.1 mi)
Cambridge Reservoir Tributary 2, Lexington, MA (1.1 mi)
Stony Brook, Waltham, MA (1.6 mi)
Stony Brook, Weston, MA (2.7 mi)
Shawsheen River, Bedford, MA (3.1 mi)
Stony Brook Tributary, Waltham, MA (3.4 mi)
Stony Brook Tributary, Weston, MA (3.5 mi)
Stony Brook, Weston, MA (3.6 mi)
Stony Brook Reservoir Tributary, Weston, MA (4.6 mi)
Fresh Pond, Cambridge, MA (6.9 mi)
Nashua River, Clinton, MA (20.1 mi)
Gates Brook, West Boylston, MA (26 mi)
Stillwater River, Sterling, MA (26.5 mi)

Weather for Lincoln, Massachusetts

Current Weather

75.9°F
Partly cloudy
Partly cloudy
77.1°F
86.1°F
62%
S 12.3 mph
14.2 mph
85.6°F
59.5°F
0 in
50%
9 mi
1014 mbar
6.9

Five Day Weather Forecast

Sunny
Tue
H: 88°F
L: 59°F
Patchy rain nearby
Wed
H: 83°F
L: 66°F
Sunny
Thu
H: 81°F
L: 55°F
Sunny
Fri
H: 83°F
L: 56°F
Sunny
Sat
H: 78°F
L: 55°F

Air Quality

AQI: 1 - Good
PM2.5: 10.5 μg/m3
PM10: 12.6 μg/m3
Carbon Monoxide: 132 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 127 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 12:51 AM
Sunset: 8:16 PM
Daylight: 14 hrs 49 mins
Moonrise: 1:44 PM
Moon Transit: 6:49 PM
Moonset: 12:23 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

8:31 AM - 11:01 AM
6:19 PM - 8:49 PM

Minor Periods

1:14 PM - 2:44 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

High Surf Advisory issued July 21 at 8:56AM EDT until July 23 at 8:00PM EDT by NWS Boston/Norton MA

Effective: Tue July 21, 2026, 8:56 AM
Expires: Wed July 22, 2026, 9:00 AM

* WHAT...Large breaking waves of 4 to 8 feet expected in the surf zone. * WHERE...Washington, Southern Bristol MA, Southern Plymouth MA, Barnstable MA, Dukes MA, Nantucket MA, and Newport RI Counties. * WHEN...From 6 AM Wednesday to 8 PM EDT Thursday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion.

Inexperienced swimmers should remain out of the water due to dangerous surf conditions.


Small Craft Advisory issued July 21 at 3:45AM EDT until July 22 at 8:00PM EDT by NWS Boston/Norton MA

Effective: Tue July 21, 2026, 3:45 AM
Expires: Tue July 21, 2026, 4:45 PM

* WHAT...South winds 20 to 30 kt with gusts up to 30-34 kt and seas 6 to 9 feet expected. * WHERE...In Massachusetts coastal waters, Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM and Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island. * WHEN...From 8 PM this evening to 8 PM EDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Tuesday, July 21, 2026

Weather Forecast

Sunny
88.2°F
59.2°F
72.7°F
73%
0.49 in
71%
0%
13.9 mph
6.9


Air Quality

AQI: 1 - Good
PM2.5: 10.1 μg/m3
PM10: 12.23 μg/m3
Carbon Monoxide: 147.38 μg/m3
Nitrogen Dioxide: 7.96 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 89.96 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 12:51 AM
Sunset: 8:16 PM
Daylight: 14 hrs 49 mins
Moonrise: 1:44 PM
Moon Transit: 6:49 PM
Moonset: 12:23 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

8:31 AM - 11:01 AM
6:19 PM - 8:49 PM

Minor Periods

1:14 PM - 2:44 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Patchy rain nearby
83.3°F
66.2°F
74.5°F
71%
0.23 in
72%
0%
12.1 mph
5.2


Air Quality

AQI: 1 - Good
PM2.5: 4.79 μg/m3
PM10: 5.02 μg/m3
Carbon Monoxide: 157.54 μg/m3
Nitrogen Dioxide: 7.61 μg/m3
Sulphur Dioxide: 0.76 μg/m3
Ozone: 95.92 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 12:51 AM
Sunset: 8:15 PM
Daylight: 14 hrs 48 mins
Moonrise: 2:50 PM
Moon Transit: 7:34 PM
Moonset: 12:46 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

9:16 AM - 11:46 AM
7:04 PM - 9:34 PM

Minor Periods

2:20 PM - 3:50 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
81.1°F
55.2°F
67.6°F
54%
0 in
3%
0%
7.6 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 3.94 μg/m3
PM10: 3.96 μg/m3
Carbon Monoxide: 163.33 μg/m3
Nitrogen Dioxide: 10.11 μg/m3
Sulphur Dioxide: 0.59 μg/m3
Ozone: 60.96 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 12:51 AM
Sunset: 8:14 PM
Daylight: 14 hrs 46 mins
Moonrise: 3:54 PM
Moon Transit: 8:22 PM
Moonset: 12:14 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

10:03 AM - 12:33 AM
7:52 PM - 10:22 PM

Minor Periods

3:24 PM - 4:54 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
82.5°F
55.6°F
68.2°F
58%
0 in
3%
0%
9.8 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 10.45 μg/m3
PM10: 10.83 μg/m3
Carbon Monoxide: 211.2 μg/m3
Nitrogen Dioxide: 16.15 μg/m3
Sulphur Dioxide: 0.76 μg/m3
Ozone: 78.13 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
77.7°F
55.2°F
65.7°F
59%
0 in
3%
0%
9.4 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 10.39 μg/m3
PM10: 10.88 μg/m3
Carbon Monoxide: 234.11 μg/m3
Nitrogen Dioxide: 21.03 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 47.89 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

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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