Water Temperature of Stony Brook in Waltham, MA

Current Water Temperature

53.6°F

Measurement Time: Wednesday, May 13, 2026, 9:50 PM 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

55°F
Clear
Clear
52.7°F
51.8°F
77%
S 8.5 mph
14 mph
51.2°F
47.8°F
0 in
0%
9 mi
1012 mbar
0

Five Day Weather Forecast

Moderate rain
Thu
H: 64°F
L: 51°F
Patchy rain nearby
Fri
H: 52°F
L: 48°F
Sunny
Sat
H: 75°F
L: 45°F
Patchy rain nearby
Sun
H: 77°F
L: 56°F
Patchy rain nearby
Mon
H: 75°F
L: 52°F

Air Quality

PM2.5: 9.05 μg/m3
PM10: 11.05 μg/m3
Carbon Monoxide: 150.85 μg/m3
Nitrogen Dioxide: 7.15 μg/m3
Sulphur Dioxide: 2.85 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 12:41 AM
Sunset: 7:59 PM
Daylight: 14 hrs 35 mins
Moonrise: 3:42 AM
Moon Transit: 10:34 AM
Moonset: 5:41 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

12:13 AM - 2:43 AM
10:04 AM - 12:34 AM

Minor Periods

5:11 PM - 6:41 PM
3:12 AM - 4:42 AM

Action Rating: 2 out of 5

Thursday, May 14, 2026

Weather Forecast

Moderate rain
63.5°F
51.3°F
54.8°F
90%
0.39 in
92%
0%
9.4 mph
4.1


Air Quality

AQI: 1 - Good
PM2.5: 10.73 μg/m3
PM10: 12.8 μg/m3
Carbon Monoxide: 166.97 μg/m3
Nitrogen Dioxide: 10.35 μg/m3
Sulphur Dioxide: 3.11 μg/m3
Ozone: 95.84 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 12:41 AM
Sunset: 7:59 PM
Daylight: 14 hrs 35 mins
Moonrise: 3:42 AM
Moon Transit: 10:34 AM
Moonset: 5:41 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

12:13 AM - 2:43 AM
10:04 AM - 12:34 AM

Minor Periods

5:11 PM - 6:41 PM
3:12 AM - 4:42 AM

Action Rating: 2 out of 5

Friday, May 15, 2026

Weather Forecast

Patchy rain nearby
51.8°F
47.5°F
51°F
96%
0.03 in
87%
0%
7.8 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 4.83 μg/m3
PM10: 5.5 μg/m3
Carbon Monoxide: 168.17 μg/m3
Nitrogen Dioxide: 10.73 μg/m3
Sulphur Dioxide: 2.62 μg/m3
Ozone: 76.56 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 12:41 AM
Sunset: 8:00 PM
Daylight: 14 hrs 37 mins
Moonrise: 4:09 AM
Moon Transit: 11:28 AM
Moonset: 7:03 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

1:06 AM - 3:36 AM
10:58 AM - 1:28 PM

Minor Periods

6:33 PM - 8:03 PM
3:39 AM - 5:09 AM

Action Rating: 5 out of 5

Saturday, May 16, 2026

Weather Forecast

Sunny
75.4°F
45.3°F
60.6°F
67%
0 in
0%
0%
9.8 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 6.85 μg/m3
PM10: 7.13 μg/m3
Carbon Monoxide: 227.61 μg/m3
Nitrogen Dioxide: 12.64 μg/m3
Sulphur Dioxide: 3.25 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 12:41 AM
Sunset: 8:01 PM
Daylight: 14 hrs 39 mins
Moonrise: 4:43 AM
Moon Transit: 12:27 AM
Moonset: 8:26 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

2:03 AM - 4:33 AM
11:57 AM - 2:27 PM

Minor Periods

7:56 PM - 9:26 PM
4:13 AM - 5:43 AM

Action Rating: 5 out of 5

Sunday, May 17, 2026

Weather Forecast

Patchy rain nearby
77.4°F
55.5°F
63.8°F
81%
0.08 in
88%
0%
8.9 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 14.25 μg/m3
PM10: 14.45 μg/m3
Carbon Monoxide: 234.85 μg/m3
Nitrogen Dioxide: 14.15 μg/m3
Sulphur Dioxide: 6.55 μg/m3
Ozone: 118 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:41 AM
Sunset: 8:02 PM
Daylight: 14 hrs 41 mins
Moonrise: 5:26 AM
Moon Transit: 1:31 PM
Moonset: 9:46 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

3:05 AM - 5:35 AM
1:01 PM - 3:31 PM

Minor Periods

9:16 PM - 10:46 PM
4:56 AM - 6:26 AM

Action Rating: 5 out of 5

Monday, May 18, 2026

Weather Forecast

Patchy rain nearby
75.3°F
52.3°F
61.7°F
65%
0.01 in
88%
0%
8.3 mph
4


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: 5:20 AM
Sun Transit: 12:41 AM
Sunset: 8:03 PM
Daylight: 14 hrs 43 mins
Moonrise: 6:22 AM
Moon Transit: 2:38 PM
Moonset: 10:56 PM
Moon Phase: New
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

4:11 AM - 6:41 AM
2:08 PM - 4:38 PM

Minor Periods

10:26 PM - 11:56 PM
5:52 AM - 7:22 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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