Water Temperature of Stony Brook in Waltham, MA

Current Water Temperature

38.3°F

Measurement Time: Thursday, January 15, 2026, 9:50 PM 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

24.1°F
Overcast
Overcast
13.2°F
24.6°F
45%
W 11.2 mph
14 mph
12.7°F
14°F
0 in
100%
9 mi
996 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 33°F
L: 20°F
Cloudy
Sat
H: 37°F
L: 28°F
Moderate or heavy snow showers
Sun
H: 37°F
L: 30°F
Blizzard
Mon
H: 30°F
L: 19°F
Light freezing rain
Tue
H: 24°F
L: 9°F

Air Quality

PM2.5: 2.45 μg/m3
PM10: 2.55 μg/m3
Carbon Monoxide: 185.85 μg/m3
Nitrogen Dioxide: 7.45 μg/m3
Sulphur Dioxide: 2.35 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 11:54 AM
Sunset: 4:39 PM
Daylight: 9 hrs 28 mins
Moonrise: 5:58 AM
Moon Transit: 10:08 AM
Moonset: 2:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:38 AM - 12:08 AM

Minor Periods

1:50 PM - 3:20 PM
5:28 AM - 6:58 AM

Action Rating: 3 out of 5

Friday, January 16, 2026

Weather Forecast

Sunny
32.5°F
19.6°F
26.4°F
59%
0 in
0%
0%
16.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.5 μg/m3
PM10: 3.62 μg/m3
Carbon Monoxide: 190.25 μg/m3
Nitrogen Dioxide: 11.03 μg/m3
Sulphur Dioxide: 2.69 μg/m3
Ozone: 61.12 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 11:54 AM
Sunset: 4:39 PM
Daylight: 9 hrs 28 mins
Moonrise: 5:58 AM
Moon Transit: 10:08 AM
Moonset: 2:20 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:38 AM - 12:08 AM

Minor Periods

1:50 PM - 3:20 PM
5:28 AM - 6:58 AM

Action Rating: 3 out of 5

Saturday, January 17, 2026

Weather Forecast

Cloudy
37.4°F
28°F
32.9°F
71%
0 in
0%
0%
11 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 9.67 μg/m3
PM10: 10.79 μg/m3
Carbon Monoxide: 227.42 μg/m3
Nitrogen Dioxide: 25.27 μg/m3
Sulphur Dioxide: 6.47 μg/m3
Ozone: 41.76 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 11:55 AM
Sunset: 4:40 PM
Daylight: 9 hrs 30 mins
Moonrise: 6:45 AM
Moon Transit: 11:01 AM
Moonset: 3:21 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:40 AM - 3:10 AM
10:31 AM - 1:01 PM

Minor Periods

2:51 PM - 4:21 PM
6:15 AM - 7:45 AM

Action Rating: 4 out of 5

Sunday, January 18, 2026

Weather Forecast

Moderate or heavy snow showers
36.7°F
30.4°F
32.7°F
86%
0.26 in
77%
16%
10.5 mph
0.2


Air Quality

AQI: 2 - Moderate
PM2.5: 18.37 μg/m3
PM10: 21.16 μg/m3
Carbon Monoxide: 313.52 μg/m3
Nitrogen Dioxide: 41.49 μg/m3
Sulphur Dioxide: 6.9 μg/m3
Ozone: 15.85 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 11:55 AM
Sunset: 4:42 PM
Daylight: 9 hrs 32 mins
Moonrise: 7:24 AM
Moon Transit: 11:52 AM
Moonset: 4:28 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

1:32 AM - 4:02 AM
11:22 AM - 1:52 PM

Minor Periods

3:58 PM - 5:28 PM
6:54 AM - 8:24 AM

Action Rating: 4 out of 5

Monday, January 19, 2026

Weather Forecast

Blizzard
29.7°F
19.3°F
25.9°F
91%
1.59 in
66%
44%
19.5 mph
0


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: 7:09 AM
Sun Transit: 11:55 AM
Sunset: 4:43 PM
Daylight: 9 hrs 33 mins
Moonrise: 7:55 AM
Moon Transit: 12:41 AM
Moonset: 5:36 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

2:22 AM - 4:52 AM
12:11 AM - 2:41 PM

Minor Periods

5:06 PM - 6:36 PM
7:25 AM - 8:55 AM

Action Rating: 5 out of 5

Tuesday, January 20, 2026

Weather Forecast

Light freezing rain
24.1°F
9.2°F
17.2°F
86%
0.01 in
79%
29%
9.2 mph
1


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: 7:09 AM
Sun Transit: 11:56 AM
Sunset: 4:44 PM
Daylight: 9 hrs 35 mins
Moonrise: 8:22 AM
Moon Transit: 1:29 PM
Moonset: 6:46 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

3:10 AM - 5:40 AM
12:59 AM - 3:29 PM

Minor Periods

6:16 PM - 7:46 PM
7:52 AM - 9:22 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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