Water Temperature of Stony Brook in Waltham, MA

Current Water Temperature

54.3°F

Measurement Time: Wednesday, May 6, 2026, 1:20 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

60.1°F
Clear
Clear
60.1°F
58.7°F
75%
SSW 10.5 mph
16.1 mph
57.2°F
50.9°F
0 in
0%
9 mi
1010 mbar
0

Five Day Weather Forecast

Moderate rain
Wed
H: 81°F
L: 58°F
Patchy rain nearby
Thu
H: 67°F
L: 47°F
Partly Cloudy
Fri
H: 64°F
L: 46°F
Patchy rain nearby
Sat
H: 65°F
L: 47°F
Cloudy
Sun
H: 71°F
L: 43°F

Air Quality

AQI: 1 - Good
PM2.5: 6.95 μg/m3
PM10: 8.65 μg/m3
Carbon Monoxide: 175.85 μg/m3
Nitrogen Dioxide: 8.25 μg/m3
Sulphur Dioxide: 2.65 μg/m3
Ozone: 98 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 12:41 AM
Sunset: 7:50 PM
Daylight: 14 hrs 17 mins
Moonrise: 12:05 AM
Moon Transit: 4:17 AM
Moonset: 8:33 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

3:47 AM - 6:17 AM
6:48 PM - 9:18 PM

Minor Periods

8:03 AM - 9:33 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, May 6, 2026

Weather Forecast

Moderate rain
80.6°F
57.7°F
66°F
70%
0.31 in
92%
0%
15.7 mph
2.6


Air Quality

AQI: 1 - Good
PM2.5: 6.97 μg/m3
PM10: 8.39 μg/m3
Carbon Monoxide: 162.89 μg/m3
Nitrogen Dioxide: 7.58 μg/m3
Sulphur Dioxide: 2.59 μg/m3
Ozone: 108.88 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 12:41 AM
Sunset: 7:50 PM
Daylight: 14 hrs 17 mins
Moonrise: 12:05 AM
Moon Transit: 4:17 AM
Moonset: 8:33 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

3:47 AM - 6:17 AM
6:48 PM - 9:18 PM

Minor Periods

8:03 AM - 9:33 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, May 7, 2026

Weather Forecast

Patchy rain nearby
67.4°F
47.2°F
57.3°F
60%
0.02 in
87%
0%
9.2 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 4.03 μg/m3
PM10: 4.49 μg/m3
Carbon Monoxide: 160.81 μg/m3
Nitrogen Dioxide: 7.25 μg/m3
Sulphur Dioxide: 2.29 μg/m3
Ozone: 86.8 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 12:41 AM
Sunset: 7:51 PM
Daylight: 14 hrs 19 mins
Moonrise: 12:47 AM
Moon Transit: 5:08 AM
Moonset: 9:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.1%

Best Times for Fishing or Hunting

Major Periods

4:38 AM - 7:08 AM
7:37 PM - 10:07 PM

Minor Periods

9:04 AM - 10:34 AM
12:17 AM - 1:47 AM

Action Rating: 3 out of 5

Friday, May 8, 2026

Weather Forecast

Partly Cloudy
64.4°F
45.6°F
55.5°F
47%
0 in
0%
0%
13.2 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 2.95 μg/m3
PM10: 3.03 μg/m3
Carbon Monoxide: 155.21 μg/m3
Nitrogen Dioxide: 7.27 μg/m3
Sulphur Dioxide: 2.09 μg/m3
Ozone: 72.88 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 12:41 AM
Sunset: 7:53 PM
Daylight: 14 hrs 22 mins
Moonrise: 1:21 AM
Moon Transit: 5:56 AM
Moonset: 10:39 AM
Moon Phase: Last Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

5:26 AM - 7:56 AM
8:25 PM - 10:55 PM

Minor Periods

10:09 AM - 11:39 AM
12:51 AM - 2:21 AM

Action Rating: 3 out of 5

Saturday, May 9, 2026

Weather Forecast

Patchy rain nearby
65.2°F
46.6°F
54.8°F
68%
0.16 in
88%
0%
15.4 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 7.53 μg/m3
PM10: 8.09 μg/m3
Carbon Monoxide: 202.66 μg/m3
Nitrogen Dioxide: 14.45 μg/m3
Sulphur Dioxide: 3.26 μg/m3
Ozone: 75.6 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 12:41 AM
Sunset: 7:54 PM
Daylight: 14 hrs 24 mins
Moonrise: 1:50 AM
Moon Transit: 6:43 AM
Moonset: 11:45 AM
Moon Phase: Last Quarter
Moon Illumination: 36.7%

Best Times for Fishing or Hunting

Major Periods

6:13 AM - 8:43 AM
9:10 PM - 11:40 PM

Minor Periods

11:15 AM - 12:45 AM
1:20 AM - 2:50 AM

Action Rating: 2 out of 5

Sunday, May 10, 2026

Weather Forecast

Cloudy
71°F
42.7°F
57°F
73%
0 in
0%
0%
11.9 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 10.75 μg/m3
PM10: 10.87 μg/m3
Carbon Monoxide: 238.37 μg/m3
Nitrogen Dioxide: 20.16 μg/m3
Sulphur Dioxide: 4.41 μg/m3
Ozone: 52.23 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 12:41 AM
Sunset: 7:55 PM
Daylight: 14 hrs 26 mins
Moonrise: 2:15 AM
Moon Transit: 7:28 AM
Moonset: 12:53 AM
Moon Phase: Last Quarter
Moon Illumination: 26.2%

Best Times for Fishing or Hunting

Major Periods

6:58 AM - 9:28 AM
12:00 AM - 12:00 AM

Minor Periods

12:23 AM - 1:53 PM
1:45 AM - 3:15 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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