Water Temperature of Cambridge Reservoir Tributary 3 in Waltham, MA

Current Water Temperature

40.8°F

Measurement Time: Sunday, December 28, 2025, 10:30 PM EST

Temperature Locations

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Local Points of Interest

Hobbs Brook Basin

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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

34.2°F
Cloudy
Conditions: Cloudy
Humidity: 95%
Heat Index: 34.2°F
Feels Like: 26.7°F
Wind: SSE 5 mph
Wind Gusts: 12 mph
Wind Chill: 26.7°F
Air Pressure: 1003.42 millibars
Dew Point: 26.7°F
Chance of Precipitation: 17%
Precipitation: 0.06 in
Cloud Cover: 100%
Visibility: 2 mi
UV Index: 0

Five Day Weather Forecast

Moderate rain
Mon
H: 46°F
L: 28°F
Partly Cloudy
Tue
H: 24°F
L: 22°F
Overcast
Wed
H: 37°F
L: 22°F
Light freezing rain
Thu
H: 26°F
L: 18°F
Sunny
Fri
H: 26°F
L: 18°F

Air Quality

PM2.5: 9.45 μg/m3
PM10: 11.55 μg/m3
Carbon Monoxide: 187.85 μg/m3
Nitrogen Dioxide: 17.75 μg/m3
Sulphur Dioxide: 3.15 μg/m3
Ozone: 57 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:47 AM
Sunset: 4:21 PM
Daylight: 9 hrs 7 mins
Moonrise: 12:08 AM
Moon Transit: 7:24 PM
Moonset: 1:38 AM
Moon Phase: First Quarter
Moon Illumination: 73.5%

Best Times for Fishing or Hunting

Major Periods

9:03 AM - 11:33 AM
6:54 PM - 9:24 PM

Minor Periods

11:38 AM - 1:08 PM
1:08 AM - 2:38 AM

Action Rating: 2 out of 5

Winter Weather Advisory issued December 28 at 12:00PM EST until December 29 at 6:00AM EST by NWS Boston/Norton MA

Effective: Sun December 28, 2025, 12:00 PM
Expires: Mon December 29, 2025, 3:30 AM

* WHAT...Freezing rain expected. Total ice accumulations up to two tenths of an inch. * WHERE...Portions of northern Connecticut, central, eastern, northeastern, and western Massachusetts, and northern Rhode Island. * WHEN...From 7 PM this evening to 6 AM EST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. The hazardous conditions could impact the Monday morning commute across northern Massachusetts.

Slow down and use caution while traveling. Prepare for possible power outages. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Winter Weather Advisory issued December 29 at 12:38AM EST until December 29 at 6:00AM EST by NWS Boston/Norton MA

Effective: Mon December 29, 2025, 12:38 AM
Expires: Mon December 29, 2025, 6:00 AM

* WHAT...Freezing rain. Additional ice accumulations around one tenth of an inch. * WHERE...Portions of northern Connecticut, central, eastern, northeastern, and western Massachusetts, and northern Rhode Island. * WHEN...Until 6 AM EST early this morning. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Difficult travel conditions are possible. The hazardous conditions could impact the Monday morning commute.

Slow down and use caution while traveling. Prepare for possible power outages. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


High Wind Watch issued December 29 at 12:38AM EST until December 31 at 1:00AM EST by NWS Boston/Norton MA

Effective: Mon December 29, 2025, 12:38 AM
Expires: Mon December 29, 2025, 1:45 PM

* WHAT...West winds of 20 to 30 mph with gusts of 50 to 60 mph possible. * WHERE...Central and Western Massachusetts. * WHEN...From this evening through late Tuesday night. Strongest of those winds will be Tuesday into Tuesday evening. * IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel could be difficult, especially for high profile vehicles.

Monitor the latest forecasts and warnings for updates.


Winter Weather Advisory issued December 28 at 4:50PM EST until December 29 at 7:00PM EST by NWS Gray ME

Effective: Sun December 28, 2025, 4:50 PM
Expires: Mon December 29, 2025, 5:00 AM

* WHAT...Mixed precipitation expected. Total ice accumulations between one tenth and four tenths of an inch. * WHERE...Portions of south central and southwest Maine and southern New Hampshire. * WHEN...From 10 PM this evening to 7 PM EST Monday. * IMPACTS...Difficult travel conditions are possible due to icy road conditions. This is especially true on untreated side roads. The hazardous conditions could impact the Monday morning and evening commutes.

Slow down and use caution while traveling. The latest road conditions can be obtained by going to newengland511.org


Winter Weather Advisory issued December 29 at 12:45AM EST until December 29 at 7:00PM EST by NWS Gray ME

Effective: Mon December 29, 2025, 12:45 AM
Expires: Mon December 29, 2025, 12:45 PM

...WINTRY MIX LIKELY THROUGH TODAY... .A messy winter storm has arrived and will last through today. While all winter weather types are possible, it looks like this storm will feature enough freezing rain to make travel hazardous through this afternoon. * WHAT...Mixed precipitation. Additional snow accumulations up to one inch, sleet accumulations up to one tenth of an inch, and ice accumulations around four tenths of an inch. * WHERE...Portions of south central and southwest Maine and southern New Hampshire. * WHEN...Until 7 PM EST this evening. * IMPACTS...Difficult travel conditions are possible due to icy road conditions. This is especially true on untreated side roads. The hazardous conditions could impact the morning and evening commutes.

Slow down and use caution while traveling. The latest road conditions can be obtained by going to newengland511.org


Winter Weather Advisory issued December 28 at 12:00PM EST until December 29 at 1:00AM EST by NWS Boston/Norton MA

Effective: Sun December 28, 2025, 12:00 PM
Expires: Mon December 29, 2025, 1:00 AM

* WHAT...Freezing rain expected. Total ice accumulations around a light glaze. * WHERE...In Massachusetts, Northern Bristol MA and Western Plymouth MA Counties. In Rhode Island, Eastern Kent RI, Southeast Providence RI, and Washington RI Counties. * WHEN...From 7 PM this evening to 1 AM EST Monday. * IMPACTS...Slippery sidewalks, roads and bridges are possible.

Slow down and use caution while traveling.


Monday, December 29, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 38°F
Average Humidity: 91%
Chance of Rain: 73%
Wind: 12.3 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 11.68 μg/m3
PM10: 12.93 μg/m3
Carbon Monoxide: 240.97 μg/m3
Nitrogen Dioxide: 30.55 μg/m3
Sulphur Dioxide: 4.55 μg/m3
Ozone: 37.28 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:47 AM
Sunset: 4:21 PM
Daylight: 9 hrs 7 mins
Moonrise: 12:08 AM
Moon Transit: 7:24 PM
Moonset: 1:38 AM
Moon Phase: First Quarter
Moon Illumination: 73.5%

Best Times for Fishing or Hunting

Major Periods

9:03 AM - 11:33 AM
6:54 PM - 9:24 PM

Minor Periods

11:38 AM - 1:08 PM
1:08 AM - 2:38 AM

Action Rating: 2 out of 5

Tuesday, December 30, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 24.9°F
Average Humidity: 57%
Chance of Rain: 0%
Wind: 17.4 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 3.21 μg/m3
PM10: 3.26 μg/m3
Carbon Monoxide: 166.17 μg/m3
Nitrogen Dioxide: 9.49 μg/m3
Sulphur Dioxide: 2.95 μg/m3
Ozone: 65.24 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:47 AM
Sunset: 4:22 PM
Daylight: 9 hrs 8 mins
Moonrise: 12:40 AM
Moon Transit: 8:21 PM
Moonset: 2:57 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.8%

Best Times for Fishing or Hunting

Major Periods

9:58 AM - 12:28 AM
7:51 PM - 10:21 PM

Minor Periods

12:10 AM - 1:40 PM
2:27 AM - 3:57 AM

Action Rating: 2 out of 5

Wednesday, December 31, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 28.2°F
Average Humidity: 63%
Chance of Rain: 0%
Wind: 13.9 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 3.57 μg/m3
PM10: 3.68 μg/m3
Carbon Monoxide: 170.11 μg/m3
Nitrogen Dioxide: 11.22 μg/m3
Sulphur Dioxide: 3.06 μg/m3
Ozone: 66.96 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:48 AM
Sunset: 4:22 PM
Daylight: 9 hrs 8 mins
Moonrise: 1:20 PM
Moon Transit: 9:24 PM
Moonset: 4:19 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.5%

Best Times for Fishing or Hunting

Major Periods

10:58 AM - 1:28 PM
8:54 PM - 11:24 PM

Minor Periods

12:50 AM - 2:20 PM
3:49 AM - 5:19 AM

Action Rating: 2 out of 5

Thursday, January 1, 2026

Weather Forecast

Conditions: Light freezing rain
Average Temperature: 22.6°F
Average Humidity: 53%
Chance of Rain: 89%
Wind: 12.3 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 4.79 μg/m3
PM10: 5.12 μg/m3
Carbon Monoxide: 194.45 μg/m3
Nitrogen Dioxide: 15.49 μg/m3
Sulphur Dioxide: 3.96 μg/m3
Ozone: 59.69 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:48 AM
Sunset: 4:23 PM
Daylight: 9 hrs 9 mins
Moonrise: 2:13 PM
Moon Transit: 10:30 PM
Moonset: 5:38 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

12:03 AM - 2:33 PM
12:00 AM - 12:00 AM

Minor Periods

1:43 PM - 3:13 PM
5:08 AM - 6:38 AM

Action Rating: 2 out of 5

Friday, January 2, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 20.4°F
Average Humidity: 58%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 2

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 11:49 AM
Sunset: 4:24 PM
Daylight: 9 hrs 10 mins
Moonrise: 3:20 PM
Moon Transit: 11:37 PM
Moonset: 6:50 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

1:10 PM - 3:40 PM
12:00 AM - 12:00 AM

Minor Periods

2:50 PM - 4:20 PM
6:20 AM - 7:50 AM

Action Rating: 4 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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