Water Temperature of Cambridge Reservoir in Lincoln, MA

Current Water Temperature

76.8°F

Measurement Time: Thursday, July 16, 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

87.1°F
Partly cloudy
Partly cloudy
85.6°F
93.3°F
31%
W 13.6 mph
15.7 mph
93°F
58.4°F
0 in
75%
9 mi
1008 mbar
5.1

Five Day Weather Forecast

Sunny
Thu
H: 94°F
L: 61°F
Sunny
Fri
H: 85°F
L: 59°F
Sunny
Sat
H: 92°F
L: 59°F
Sunny
Sun
H: 81°F
L: 61°F
Sunny
Mon
H: 84°F
L: 57°F

Air Quality

AQI: 1 - Good
PM2.5: 29.2 μg/m3
PM10: 30.2 μg/m3
Carbon Monoxide: 148 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 128 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

Air Quality Alert issued July 15 at 4:34PM EDT by NWS Boston/Norton MA

Effective: Wed July 15, 2026, 4:34 PM
Expires: Thu July 16, 2026, 12:00 PM

The Rhode Island Department of Environmental Management has issued an Air Quality Alert Day for Fine Particulates, until midnight EDT Thursday night. An Air Quality Alert day means that Fine Particulates concentrations within the region may approach or exceed unhealthy standards. For additional information, please visit the Rhode Island Department of Environmental Management website at: https://dem.ri.gov/
Thursday, July 16, 2026

Weather Forecast

Sunny
94.1°F
60.8°F
76.9°F
49%
0 in
2%
0%
15.4 mph
5.4


Air Quality

AQI: 2 - Moderate
PM2.5: 18.64 μg/m3
PM10: 19.2 μg/m3
Carbon Monoxide: 150.71 μg/m3
Nitrogen Dioxide: 9.99 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 83.38 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

Friday, July 17, 2026

Weather Forecast

Sunny
85.1°F
58.9°F
72°F
38%
0 in
1%
0%
9.4 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 5.23 μg/m3
PM10: 5.39 μg/m3
Carbon Monoxide: 122.92 μg/m3
Nitrogen Dioxide: 7.45 μg/m3
Sulphur Dioxide: 0.55 μg/m3
Ozone: 75.54 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:51 AM
Sunset: 8:19 PM
Daylight: 14 hrs 56 mins
Moonrise: 9:10 AM
Moon Transit: 3:52 PM
Moonset: 10:21 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

5:33 AM - 8:03 AM
3:22 PM - 5:52 PM

Minor Periods

9:51 PM - 11:21 PM
8:40 AM - 10:10 AM

Action Rating: 3 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
91.9°F
59°F
72.3°F
60%
0.06 in
57%
0%
17.7 mph
5.6


Air Quality

AQI: 1 - Good
PM2.5: 14.06 μg/m3
PM10: 16.2 μg/m3
Carbon Monoxide: 182.42 μg/m3
Nitrogen Dioxide: 12.33 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 83.29 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 12:51 AM
Sunset: 8:18 PM
Daylight: 14 hrs 55 mins
Moonrise: 10:22 AM
Moon Transit: 4:38 PM
Moonset: 10:42 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

6:20 AM - 8:50 AM
4:08 PM - 6:38 PM

Minor Periods

10:12 PM - 11:42 PM
9:52 AM - 11:22 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
81.1°F
61.2°F
72.7°F
66%
0.06 in
57%
0%
14.3 mph
6.5


Air Quality

AQI: 1 - Good
PM2.5: 3.29 μg/m3
PM10: 3.46 μg/m3
Carbon Monoxide: 143.76 μg/m3
Nitrogen Dioxide: 4.07 μg/m3
Sulphur Dioxide: 0.73 μg/m3
Ozone: 97.33 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 12:51 AM
Sunset: 8:18 PM
Daylight: 14 hrs 53 mins
Moonrise: 11:31 AM
Moon Transit: 5:21 PM
Moonset: 11:02 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

7:04 AM - 9:34 AM
4:51 PM - 7:21 PM

Minor Periods

12:00 AM - 12:00 AM
11:01 AM - 12:31 AM

Action Rating: 2 out of 5

Monday, July 20, 2026

Weather Forecast

Sunny
83.7°F
56.5°F
69.1°F
49%
0 in
2%
0%
9.2 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 6.13 μg/m3
PM10: 6.21 μg/m3
Carbon Monoxide: 169.56 μg/m3
Nitrogen Dioxide: 8.72 μg/m3
Sulphur Dioxide: 0.58 μg/m3
Ozone: 54.67 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 12:51 AM
Sunset: 8:17 PM
Daylight: 14 hrs 51 mins
Moonrise: 12:38 AM
Moon Transit: 6:05 PM
Moonset: 12:02 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

7:47 AM - 10:17 AM
5:35 PM - 8:05 PM

Minor Periods

12:08 AM - 1:38 PM
12:00 AM - 12:00 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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