Water Temperature of Stony Brook in Waltham, MA

Current Water Temperature

66.2°F

Measurement Time: Friday, June 5, 2026, 9:00 AM EDT

Temperature Locations

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Local Points of Interest

Cambridge Reservoir (Hobbs Brook Basin)

Stony Brook

Station Name: HOBBS BK BELOW CAMBRIDGE RES NR KENDALL GREEN, MA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 167 feet

Nearest Address:
Winter St
Waltham, MA 02451
Middlesex County

GPS Coordinates: 42.3981512, -71.2733903

Nearby Water Temperatures

Stony Brook, Weston, MA (1.2 mi)
Cambridge Reservoir, Lincoln, MA (1.6 mi)
Cambridge Reservoir Tributary 3, Waltham, MA (1.7 mi)
Stony Brook Tributary, Waltham, MA (1.8 mi)
Stony Brook Tributary, Weston, MA (1.9 mi)
Stony Brook, Weston, MA (2 mi)
Hobbs Brook, Lincoln, MA (2.7 mi)
Cambridge Reservoir Tributary 1, Lexington, MA (2.7 mi)
Cambridge Reservoir Tributary 2, Lexington, MA (2.7 mi)
Stony Brook Reservoir Tributary, Weston, MA (3 mi)
Shawsheen River, Bedford, MA (4.8 mi)
Fresh Pond, Cambridge, MA (6.6 mi)
Nashua River, Clinton, MA (20.1 mi)
Gates Brook, West Boylston, MA (25.7 mi)
Stillwater River, Sterling, MA (26.4 mi)

Weather for Waltham, Massachusetts

Current Weather

84.9°F
Partly cloudy
Partly cloudy
81.4°F
88.3°F
30%
WNW 8.1 mph
9.3 mph
91°F
50°F
0 in
75%
9 mi
1014 mbar
7.4

Five Day Weather Forecast

Sunny
Fri
H: 95°F
L: 62°F
Patchy rain nearby
Sat
H: 88°F
L: 62°F
Moderate rain
Sun
H: 80°F
L: 55°F
Sunny
Mon
H: 80°F
L: 50°F
Sunny
Tue
H: 87°F
L: 56°F

Air Quality

AQI: 1 - Good
PM2.5: 5.1 μg/m3
PM10: 5.7 μg/m3
Carbon Monoxide: 139 μg/m3
Nitrogen Dioxide: 2.4 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 157 μg/m3

Astronomical

Sunrise: 5:09 AM
Sun Transit: 12:43 AM
Sunset: 8:19 PM
Daylight: 15 hrs 10 mins
Moonrise: 12:52 AM
Moon Transit: 4:39 AM
Moonset: 9:35 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.0%

Best Times for Fishing or Hunting

Major Periods

4:09 AM - 6:39 AM
7:07 PM - 9:37 PM

Minor Periods

9:05 AM - 10:35 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Beach Hazards Statement issued June 5 at 2:53AM EDT until June 5 at 8:00PM EDT by NWS Gray ME

Effective: Fri June 5, 2026, 2:53 AM
Expires: Fri June 5, 2026, 3:00 PM

* WHAT...Warm air temperatures in the 80s may cause people to underestimate the dangers of the cold water temperatures in the low to mid 50s. * WHERE...In Maine, Coastal York, Coastal Cumberland, Sagadahoc, Lincoln, Knox and Coastal Waldo Counties. In New Hampshire, Coastal Rockingham County. * WHEN...From Friday morning through Friday evening. * IMPACTS...When the water temperature is below 60 degrees, the average submerged person could lose dexterity within minutes and be unable to accomplish simple tasks. Anyone on boats or paddlecraft should use extreme caution to avoid this threat.

A Beach Hazards Statement is issued on days when a significant number of boats and paddlecraft are expected to be out on the water and when warm air temperatures may cause people to underestimate the danger of the cold water. Paddle smart from the start. Always wear your life jacket. Be aware of wind conditions, tides, and localized currents. All boaters and paddlers are highly encouraged to contact the U.S. Coast Guard Auxiliary or U.S. Power Squadrons at www.wow.uscgaux/i_want_a_usc/index.php to receive a FREE vessel check. This is a convenient, no consequence way to ensure your vessel is outfitted with all required safety equipment. Additionally, please label your paddlecraft with your contact information (IF FOUND Sticker) in the event it is found adrift on the water.


Friday, June 5, 2026

Weather Forecast

Sunny
95°F
61.5°F
77.6°F
39%
0 in
0%
0%
8.1 mph
7.4


Air Quality

AQI: 1 - Good
PM2.5: 6.45 μg/m3
PM10: 7.16 μg/m3
Carbon Monoxide: 196.92 μg/m3
Nitrogen Dioxide: 10.22 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 112.75 μg/m3

Astronomical

Sunrise: 5:09 AM
Sun Transit: 12:43 AM
Sunset: 8:19 PM
Daylight: 15 hrs 10 mins
Moonrise: 12:52 AM
Moon Transit: 4:39 AM
Moonset: 9:35 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.0%

Best Times for Fishing or Hunting

Major Periods

4:09 AM - 6:39 AM
7:07 PM - 9:37 PM

Minor Periods

9:05 AM - 10:35 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, June 6, 2026

Weather Forecast

Patchy rain nearby
87.6°F
62°F
70.9°F
67%
0.05 in
73%
0%
13.4 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 11.6 μg/m3
PM10: 13.42 μg/m3
Carbon Monoxide: 181.75 μg/m3
Nitrogen Dioxide: 12.14 μg/m3
Sulphur Dioxide: 1.66 μg/m3
Ozone: 125.29 μg/m3

Astronomical

Sunrise: 5:09 AM
Sun Transit: 12:43 AM
Sunset: 8:19 PM
Daylight: 15 hrs 11 mins
Moonrise: 12:18 AM
Moon Transit: 5:24 AM
Moonset: 10:41 AM
Moon Phase: Last Quarter
Moon Illumination: 53.9%

Best Times for Fishing or Hunting

Major Periods

4:54 AM - 7:24 AM
7:51 PM - 10:21 PM

Minor Periods

10:11 AM - 11:41 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Sunday, June 7, 2026

Weather Forecast

Moderate rain
79.8°F
55.3°F
68.2°F
80%
0.5 in
87%
0%
12.8 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 3.03 μg/m3
PM10: 3.3 μg/m3
Carbon Monoxide: 139.33 μg/m3
Nitrogen Dioxide: 5.08 μg/m3
Sulphur Dioxide: 0.59 μg/m3
Ozone: 89.38 μg/m3

Astronomical

Sunrise: 5:08 AM
Sun Transit: 12:44 AM
Sunset: 8:20 PM
Daylight: 15 hrs 12 mins
Moonrise: 12:40 AM
Moon Transit: 6:08 AM
Moonset: 11:47 AM
Moon Phase: Last Quarter
Moon Illumination: 42.6%

Best Times for Fishing or Hunting

Major Periods

5:38 AM - 8:08 AM
8:34 PM - 11:04 PM

Minor Periods

11:17 AM - 12:47 AM
12:10 AM - 1:40 AM

Action Rating: 4 out of 5

Monday, June 8, 2026

Weather Forecast

Sunny
80.3°F
50.2°F
65°F
58%
0 in
1%
0%
8.3 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 4.43 μg/m3
PM10: 5.59 μg/m3
Carbon Monoxide: 136.5 μg/m3
Nitrogen Dioxide: 7.38 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 72.5 μg/m3

Astronomical

Sunrise: 5:08 AM
Sun Transit: 12:44 AM
Sunset: 8:21 PM
Daylight: 15 hrs 13 mins
Moonrise: 1:00 AM
Moon Transit: 6:51 AM
Moonset: 12:55 AM
Moon Phase: Last Quarter
Moon Illumination: 31.6%

Best Times for Fishing or Hunting

Major Periods

6:21 AM - 8:51 AM
9:18 PM - 11:48 PM

Minor Periods

12:25 AM - 1:55 PM
12:30 AM - 2:00 AM

Action Rating: 2 out of 5

Tuesday, June 9, 2026

Weather Forecast

Sunny
86.7°F
56.1°F
70.7°F
50%
0 in
0%
0%
6.3 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 13.8 μg/m3
PM10: 15.42 μg/m3
Carbon Monoxide: 238.67 μg/m3
Nitrogen Dioxide: 39.76 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 30.11 μg/m3

Astronomical

Sunrise: 5:08 AM
Sun Transit: 12:44 AM
Sunset: 8:21 PM
Daylight: 15 hrs 13 mins
Moonrise: 1:20 AM
Moon Transit: 6:27 AM
Moonset: 2:04 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

5:57 AM - 8:27 AM
5:57 AM - 8:27 AM

Minor Periods

1:34 PM - 3:04 PM
12:50 AM - 2:20 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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