Water Temperature of Stony Brook in Waltham, MA

Current Water Temperature

42.3°F

Measurement Time: Sunday, January 11, 2026, 6:30 AM EST

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

37°F
Partly cloudy
Partly cloudy
35.1°F
40°F
92%
N 2.9 mph
4 mph
35.6°F
37.9°F
0 in
75%
9 mi
1006 mbar
0.3

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 43°F
L: 31°F
Partly Cloudy
Mon
H: 37°F
L: 23°F
Sunny
Tue
H: 39°F
L: 30°F
Patchy rain nearby
Wed
H: 46°F
L: 36°F
Patchy rain nearby
Thu
H: 42°F
L: 31°F

Air Quality

AQI: 1 - Good
PM2.5: 3.05 μg/m3
PM10: 3.15 μg/m3
Carbon Monoxide: 233.85 μg/m3
Nitrogen Dioxide: 14.55 μg/m3
Sulphur Dioxide: 4.05 μg/m3
Ozone: 52 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 11:53 AM
Sunset: 4:33 PM
Daylight: 9 hrs 20 mins
Moonrise: 12:52 AM
Moon Transit: 6:07 AM
Moonset: 11:14 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

5:37 AM - 8:07 AM
8:33 PM - 11:03 PM

Minor Periods

10:44 AM - 12:14 AM
12:22 AM - 1:52 AM

Action Rating: 2 out of 5

Sunday, January 11, 2026

Weather Forecast

Patchy rain nearby
43.3°F
31°F
38.8°F
84%
0.17 in
88%
0%
10.5 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 7.31 μg/m3
PM10: 8.51 μg/m3
Carbon Monoxide: 225.57 μg/m3
Nitrogen Dioxide: 22.75 μg/m3
Sulphur Dioxide: 3.95 μg/m3
Ozone: 42.84 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 11:53 AM
Sunset: 4:33 PM
Daylight: 9 hrs 20 mins
Moonrise: 12:52 AM
Moon Transit: 6:07 AM
Moonset: 11:14 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

5:37 AM - 8:07 AM
8:33 PM - 11:03 PM

Minor Periods

10:44 AM - 12:14 AM
12:22 AM - 1:52 AM

Action Rating: 2 out of 5

Monday, January 12, 2026

Weather Forecast

Partly Cloudy
37°F
23.2°F
30°F
67%
0 in
0%
0%
14.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.21 μg/m3
PM10: 4.51 μg/m3
Carbon Monoxide: 196.21 μg/m3
Nitrogen Dioxide: 13.47 μg/m3
Sulphur Dioxide: 2.92 μg/m3
Ozone: 60.36 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 11:53 AM
Sunset: 4:35 PM
Daylight: 9 hrs 22 mins
Moonrise: 1:56 AM
Moon Transit: 6:50 AM
Moonset: 11:38 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%

Best Times for Fishing or Hunting

Major Periods

6:20 AM - 8:50 AM
9:18 PM - 11:48 PM

Minor Periods

11:08 AM - 12:38 AM
1:26 AM - 2:56 AM

Action Rating: 2 out of 5

Tuesday, January 13, 2026

Weather Forecast

Sunny
39.4°F
30.4°F
34°F
73%
0 in
0%
0%
8.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 11.92 μg/m3
PM10: 12.6 μg/m3
Carbon Monoxide: 256.25 μg/m3
Nitrogen Dioxide: 30.65 μg/m3
Sulphur Dioxide: 6.83 μg/m3
Ozone: 32.84 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 11:53 AM
Sunset: 4:36 PM
Daylight: 9 hrs 23 mins
Moonrise: 3:00 AM
Moon Transit: 7:36 AM
Moonset: 12:07 AM
Moon Phase: Waning Crescent
Moon Illumination: 15.9%

Best Times for Fishing or Hunting

Major Periods

7:06 AM - 9:36 AM
12:00 AM - 12:00 AM

Minor Periods

11:37 AM - 1:07 PM
2:30 AM - 4:00 AM

Action Rating: 3 out of 5

Wednesday, January 14, 2026

Weather Forecast

Patchy rain nearby
45.7°F
36.1°F
41.6°F
76%
0.01 in
71%
0%
12.3 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 12.63 μg/m3
PM10: 14.03 μg/m3
Carbon Monoxide: 250.83 μg/m3
Nitrogen Dioxide: 26.49 μg/m3
Sulphur Dioxide: 7.88 μg/m3
Ozone: 39.64 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 11:54 AM
Sunset: 4:37 PM
Daylight: 9 hrs 25 mins
Moonrise: 4:04 AM
Moon Transit: 8:25 AM
Moonset: 12:43 AM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

7:55 AM - 10:25 AM
12:00 AM - 12:00 AM

Minor Periods

12:13 AM - 1:43 PM
3:34 AM - 5:04 AM

Action Rating: 2 out of 5

Thursday, January 15, 2026

Weather Forecast

Patchy rain nearby
42.3°F
31.3°F
37.8°F
91%
0.02 in
83%
6%
13.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 15.2 μg/m3
PM10: 16.37 μg/m3
Carbon Monoxide: 306.06 μg/m3
Nitrogen Dioxide: 37.4 μg/m3
Sulphur Dioxide: 7.74 μg/m3
Ozone: 21.92 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 11:54 AM
Sunset: 4:38 PM
Daylight: 9 hrs 26 mins
Moonrise: 5:04 AM
Moon Transit: 9:16 AM
Moonset: 1:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

8:46 AM - 11:16 AM
12:00 AM - 12:00 AM

Minor Periods

12:57 AM - 2:27 PM
4:34 AM - 6:04 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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