Water Temperature of Cambridge Reservoir in Lincoln, MA
Current Water Temperature
48.4°F 9.1°C
Frigid Dangerously Cold
48.4°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+
Severe hypothermia and cold water shock risk. Unprotected swimming causes rapid loss of dexterity in under 5 minutes.
Measurement Time: Tuesday, November 10, 2026, 5:30 PM EST
Temperature Locations
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Local Points of Interest
Hobbs Brook BasinSponsored Content
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
46.4°F

Conditions: Clear
Humidity: 70%
Feels Like: 40.1°F
Wind: W 7.6 mph
Wind Gusts: 17.2 mph
Humidity: 70%
Feels Like: 40.1°F
Wind: W 7.6 mph
Wind Gusts: 17.2 mph
Pressure: 29.81 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 14.5 mi
UV Index: 0
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 14.5 mi
UV Index: 0
Weather Forecast

Tue
H: 53°F
L: 42°F

Wed
H: 54°F
L: 40°F

Thu
H: 48°F
L: 38°F

Fri
H: 48°F
L: 36°F

Sat
H: 40°F
L: 33°F
Air Quality
EPA Index 1 • Good
Air quality is satisfactory, and air pollution poses little or no risk.
PM2.5
4.9 μg/m³
Good PM10
5.2 μg/m³
GoodOzone (O3)
40 μg/m³
PhotochemicalNO2
24.3 μg/m³
Nitrogen DioxideSO2
2 μg/m³
Sulfur DioxideCO
184 μg/m³
Carbon MonoxideAstronomical
Sun
9h 58m daylight Sunrise 6:30 AM
Solar Noon 11:29 AM
Sunset 4:28 PM
Moon
New • 0% Moonrise 8:07 AM
Transit 12:31 PM
Moonset 4:53 PM
Best Times for Fishing or Hunting
Major Periods
12:01 PM - 2:31 PM11:36 PM - 2:06 AM
Minor Periods
7:37 AM - 9:07 AM4:23 PM - 5:53 PM
Action Rating:Very Good 4/5
Tuesday, November 10, 2026
Weather Forecast
Conditions: Overcast
Average Temperature: 47.5°F
Average Humidity: 70%
Average Temperature: 47.5°F
Average Humidity: 70%
Chance of Rain: 2%
Wind: 10.4 mph
UV Index: 3.1
Wind: 10.4 mph
UV Index: 3.1
Air Quality
EPA Index 1 • Good
PM2.5
7.7 μg/m³
Good PM10
7.9 μg/m³
GoodOzone (O3)
39.5 μg/m³
PhotochemicalNO2
18.5 μg/m³
Nitrogen DioxideSO2
1 μg/m³
Sulfur DioxideCO
180.6 μg/m³
Carbon MonoxideAstronomical
Sun
9h 58m daylight Sunrise 6:30 AM
Solar Noon 11:29 AM
Sunset 4:28 PM
Moon
New • 0% Moonrise 8:07 AM
Transit 12:31 PM
Moonset 4:53 PM
Best Times for Fishing or Hunting
Major Periods
12:01 PM - 2:31 PM11:36 PM - 2:06 AM
Minor Periods
7:37 AM - 9:07 AM4:23 PM - 5:53 PM
Action Rating:Very Good 4/5
Wednesday, November 11, 2026
Weather Forecast
Conditions: Overcast
Average Temperature: 46°F
Average Humidity: 72%
Average Temperature: 46°F
Average Humidity: 72%
Chance of Rain: 2%
Wind: 9.5 mph
UV Index: 3.2
Wind: 9.5 mph
UV Index: 3.2
Air Quality
EPA Index 1 • Good
PM2.5
8.8 μg/m³
Good PM10
9 μg/m³
GoodOzone (O3)
36 μg/m³
PhotochemicalNO2
26.8 μg/m³
Nitrogen DioxideSO2
1.4 μg/m³
Sulfur DioxideCO
211.2 μg/m³
Carbon MonoxideAstronomical
Sun
9h 55m daylight Sunrise 6:31 AM
Solar Noon 11:29 AM
Sunset 4:27 PM
Moon
New • 2% Moonrise 9:07 AM
Transit 1:23 PM
Moonset 5:37 PM
Best Times for Fishing or Hunting
Major Periods
12:27 AM - 2:57 AM12:53 PM - 3:23 PM
Minor Periods
8:37 AM - 10:07 AM5:07 PM - 6:37 PM
Action Rating:Good Action 3/5
Thursday, November 12, 2026
Weather Forecast
Conditions: Moderate Rain
Average Temperature: 44.1°F
Average Humidity: 86%
Average Temperature: 44.1°F
Average Humidity: 86%
Chance of Rain: 67%
Wind: 11.1 mph
UV Index: 1.3
Wind: 11.1 mph
UV Index: 1.3
Air Quality
EPA Index 2 • Moderate
PM2.5
7.6 μg/m³
Good PM10
9.3 μg/m³
GoodOzone (O3)
43.2 μg/m³
PhotochemicalNO2
24.9 μg/m³
Nitrogen DioxideSO2
0.8 μg/m³
Sulfur DioxideCO
172.4 μg/m³
Carbon MonoxideAstronomical
Sun
9h 53m daylight Sunrise 6:33 AM
Solar Noon 11:29 AM
Sunset 4:26 PM
Moon
Waxing Crescent • 6% Moonrise 10:01 AM
Transit 2:14 PM
Moonset 6:29 PM
Best Times for Fishing or Hunting
Major Periods
1:18 AM - 3:48 AM1:44 PM - 4:14 PM
Minor Periods
9:31 AM - 11:01 AM5:59 PM - 7:29 PM
Action Rating:Good Action 3/5
Friday, November 13, 2026
Weather Forecast
Conditions: Light Snow
Average Temperature: 43.3°F
Average Humidity: 95%
Average Temperature: 43.3°F
Average Humidity: 95%
Chance of Rain: 94%
Wind: 11.6 mph
UV Index: 0.7
Wind: 11.6 mph
UV Index: 0.7
Air Quality
EPA Index 1 • Good
PM2.5
2.1 μg/m³
Good PM10
2.3 μg/m³
GoodOzone (O3)
54.6 μg/m³
PhotochemicalNO2
12.2 μg/m³
Nitrogen DioxideSO2
0.7 μg/m³
Sulfur DioxideCO
166.2 μg/m³
Carbon MonoxideAstronomical
Sun
9h 51m daylight Sunrise 6:34 AM
Solar Noon 11:29 AM
Sunset 4:25 PM
Moon
Waxing Crescent • 13% Moonrise 10:47 AM
Transit 3:05 PM
Moonset 7:27 PM
Best Times for Fishing or Hunting
Major Periods
2:10 AM - 4:40 AM2:35 PM - 5:05 PM
Minor Periods
10:17 AM - 11:47 AM6:57 PM - 8:27 PM
Action Rating:Fair Action 2/5
Saturday, November 14, 2026
Weather Forecast
Conditions: Light Snow
Average Temperature: 37.2°F
Average Humidity: 94%
Average Temperature: 37.2°F
Average Humidity: 94%
Chance of Rain: 46%
Wind: 8.1 mph
UV Index: 0.9
Wind: 8.1 mph
UV Index: 0.9
Air Quality
EPA Index 1 • Good
PM2.5
2.7 μg/m³
Good PM10
2.7 μg/m³
GoodOzone (O3)
44.3 μg/m³
PhotochemicalNO2
13 μg/m³
Nitrogen DioxideSO2
0.9 μg/m³
Sulfur DioxideCO
158.9 μg/m³
Carbon MonoxideAstronomical
Sun
9h 49m daylight Sunrise 6:35 AM
Solar Noon 11:29 AM
Sunset 4:24 PM
Moon
Waxing Crescent • 21% Moonrise 11:24 AM
Transit 3:54 PM
Moonset 8:29 PM
Best Times for Fishing or Hunting
Major Periods
2:59 AM - 5:29 AM3:24 PM - 5:54 PM
Minor Periods
10:54 AM - 12:24 PM7:59 PM - 9:29 PM
Action Rating:Fair Action 2/5
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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