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
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

Sun
H: 43°F
L: 31°F

Mon
H: 37°F
L: 23°F

Tue
H: 39°F
L: 30°F

Wed
H: 46°F
L: 36°F

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
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
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%
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 AM8:33 PM - 11:03 PM
Minor Periods
10:44 AM - 12:14 AM12:22 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
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
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%
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 AM8:33 PM - 11:03 PM
Minor Periods
10:44 AM - 12:14 AM12:22 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
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
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%
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 AM9:18 PM - 11:48 PM
Minor Periods
11:08 AM - 12:38 AM1:26 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
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
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%
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 AM12:00 AM - 12:00 AM
Minor Periods
11:37 AM - 1:07 PM2:30 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
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
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%
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 AM12:00 AM - 12:00 AM
Minor Periods
12:13 AM - 1:43 PM3:34 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
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
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%
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 AM12:00 AM - 12:00 AM
Minor Periods
12:57 AM - 2:27 PM4:34 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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