Water Temperature of Stony Brook in Waltham, MA

Current Water Temperature

40.1°F

Measurement Time: Tuesday, February 3, 2026, 2:50 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

9°F
Sunny
Sunny
4.4°F
6.3°F
66%
WNW 2.5 mph
5.2 mph
-3.3°F
-7.8°F
0 in
0%
9 mi
1018 mbar
0.3

Five Day Weather Forecast

Sunny
Tue
H: 37°F
L: 5°F
Sunny
Wed
H: 30°F
L: 6°F
Sunny
Thu
H: 26°F
L: 14°F
Moderate snow
Fri
H: 27°F
L: -2°F
Moderate or heavy snow showers
Sat
H: 13°F
L: 1°F

Air Quality

AQI: 2 - Moderate
PM2.5: 16.55 μg/m3
PM10: 18.95 μg/m3
Carbon Monoxide: 275.85 μg/m3
Nitrogen Dioxide: 18.75 μg/m3
Sulphur Dioxide: 7.55 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 11:58 AM
Sunset: 5:02 PM
Daylight: 10 hrs 5 mins
Moonrise: 7:16 PM
Moon Transit: 1:06 AM
Moonset: 7:55 AM
Moon Phase: Full
Moon Illumination: 96.3%

Best Times for Fishing or Hunting

Major Periods

12:36 AM - 3:06 AM
3:34 PM - 6:04 PM

Minor Periods

6:46 PM - 8:16 PM
7:25 AM - 8:55 AM

Action Rating: 4 out of 5

Tuesday, February 3, 2026

Weather Forecast

Sunny
37.2°F
5.4°F
21.7°F
59%
0 in
0%
0%
4.5 mph
0.4


Air Quality

AQI: 2 - Moderate
PM2.5: 17.17 μg/m3
PM10: 19.21 μg/m3
Carbon Monoxide: 310.49 μg/m3
Nitrogen Dioxide: 33.57 μg/m3
Sulphur Dioxide: 4.22 μg/m3
Ozone: 54.76 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 11:58 AM
Sunset: 5:02 PM
Daylight: 10 hrs 5 mins
Moonrise: 7:16 PM
Moon Transit: 1:06 AM
Moonset: 7:55 AM
Moon Phase: Full
Moon Illumination: 96.3%

Best Times for Fishing or Hunting

Major Periods

12:36 AM - 3:06 AM
3:34 PM - 6:04 PM

Minor Periods

6:46 PM - 8:16 PM
7:25 AM - 8:55 AM

Action Rating: 4 out of 5

Wednesday, February 4, 2026

Weather Forecast

Sunny
30.4°F
5.8°F
25.2°F
72%
0 in
0%
0%
8.9 mph
0.4


Air Quality

AQI: 2 - Moderate
PM2.5: 17.68 μg/m3
PM10: 18.16 μg/m3
Carbon Monoxide: 324.41 μg/m3
Nitrogen Dioxide: 33.15 μg/m3
Sulphur Dioxide: 3.65 μg/m3
Ozone: 43.36 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:00 AM
Sunset: 5:03 PM
Daylight: 10 hrs 8 mins
Moonrise: 8:25 PM
Moon Transit: 1:52 AM
Moonset: 8:17 AM
Moon Phase: Full
Moon Illumination: 90.9%

Best Times for Fishing or Hunting

Major Periods

1:22 AM - 3:52 AM
4:19 PM - 6:49 PM

Minor Periods

7:55 PM - 9:25 PM
7:47 AM - 9:17 AM

Action Rating: 3 out of 5

Thursday, February 5, 2026

Weather Forecast

Sunny
25.9°F
13.8°F
20.7°F
70%
0 in
0%
0%
9.2 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 8.77 μg/m3
PM10: 9.01 μg/m3
Carbon Monoxide: 285.73 μg/m3
Nitrogen Dioxide: 22.29 μg/m3
Sulphur Dioxide: 2.86 μg/m3
Ozone: 57.64 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 12:00 AM
Sunset: 5:04 PM
Daylight: 10 hrs 10 mins
Moonrise: 9:32 PM
Moon Transit: 2:36 AM
Moonset: 8:36 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

2:06 AM - 4:36 AM
5:02 PM - 7:32 PM

Minor Periods

9:02 PM - 10:32 PM
8:06 AM - 9:36 AM

Action Rating: 3 out of 5

Friday, February 6, 2026

Weather Forecast

Moderate snow
26.7°F
-2°F
16.5°F
84%
0.04 in
84%
19%
9.8 mph
0.4


Air Quality

AQI: 2 - Moderate
PM2.5: 20.71 μg/m3
PM10: 21.8 μg/m3
Carbon Monoxide: 337.12 μg/m3
Nitrogen Dioxide: 46.66 μg/m3
Sulphur Dioxide: 3.83 μg/m3
Ozone: 35.48 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 12:00 AM
Sunset: 5:06 PM
Daylight: 10 hrs 12 mins
Moonrise: 10:37 PM
Moon Transit: 3:18 AM
Moonset: 8:56 AM
Moon Phase: Waning Gibbous
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

2:48 AM - 5:18 AM
5:44 PM - 8:14 PM

Minor Periods

10:07 PM - 11:37 PM
8:26 AM - 9:56 AM

Action Rating: 2 out of 5

Saturday, February 7, 2026

Weather Forecast

Moderate or heavy snow showers
12.8°F
1.4°F
13.6°F
85%
0.07 in
81%
41%
22.1 mph
0


Air Quality

AQI: 2 - Moderate
PM2.5: 16.64 μg/m3
PM10: 19.2 μg/m3
Carbon Monoxide: 295.41 μg/m3
Nitrogen Dioxide: 40.6 μg/m3
Sulphur Dioxide: 4.05 μg/m3
Ozone: 37.69 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 12:00 AM
Sunset: 5:07 PM
Daylight: 10 hrs 15 mins
Moonrise: 11:42 PM
Moon Transit: 4:01 AM
Moonset: 9:16 AM
Moon Phase: Waning Gibbous
Moon Illumination: 63.7%

Best Times for Fishing or Hunting

Major Periods

3:31 AM - 6:01 AM
6:27 PM - 8:57 PM

Minor Periods

12:00 AM - 12:00 AM
8:46 AM - 10:16 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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