Water Temperature of Stony Brook in Waltham, MA

Current Water Temperature

66.6°F

Measurement Time: Saturday, May 30, 2026, 6:50 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

46.5°F
Light rain
Light rain
38.8°F
46.5°F
88%
N 16.8 mph
23.1 mph
38.8°F
42.6°F
0.08 in
100%
5 mi
1012 mbar
0.6

Five Day Weather Forecast

Heavy rain
Sat
H: 52°F
L: 43°F
Patchy rain nearby
Sun
H: 71°F
L: 41°F
Heavy rain
Mon
H: 67°F
L: 52°F
Heavy rain
Tue
H: 54°F
L: 49°F
Moderate rain
Wed
H: 69°F
L: 47°F

Air Quality

AQI: 1 - Good
PM2.5: 2.35 μg/m3
PM10: 2.45 μg/m3
Carbon Monoxide: 131.85 μg/m3
Nitrogen Dioxide: 2.95 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 88 μg/m3

Astronomical

Sunrise: 5:12 AM
Sun Transit: 12:42 AM
Sunset: 8:14 PM
Daylight: 15 hrs 3 mins
Moonrise: 8:10 PM
Moon Transit: 12:00 AM
Moonset: 4:12 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:11 PM - 4:41 PM

Minor Periods

7:40 PM - 9:10 PM
3:42 AM - 5:12 AM

Action Rating: 4 out of 5

Wind Advisory issued May 30 at 2:52AM EDT until May 30 at 8:00PM EDT by NWS Boston/Norton MA

Effective: Sat May 30, 2026, 2:52 AM
Expires: Sat May 30, 2026, 8:00 PM

* WHAT...North winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Portions of central, eastern, northeastern, and southeastern Massachusetts and northern and southern Rhode Island. * WHEN...From 8 AM this morning to 8 PM EDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and some power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.


Wind Advisory issued May 30 at 2:52AM EDT until May 30 at 8:00PM EDT by NWS Boston/Norton MA

Effective: Sat May 30, 2026, 2:52 AM
Expires: Sat May 30, 2026, 8:00 PM

* WHAT...Northeast winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Eastern Norfolk MA, Suffolk MA, and Eastern Essex MA Counties. * WHEN...From 8 AM this morning to 8 PM EDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and some power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.


Wind Advisory issued May 30 at 2:52AM EDT until May 30 at 8:00PM EDT by NWS Boston/Norton MA

Effective: Sat May 30, 2026, 2:52 AM
Expires: Sat May 30, 2026, 8:00 PM

* WHAT...North winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...Eastern and Southern Plymouth County, and Dukes MA. * WHEN...From 8 AM this morning to 8 PM EDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and some power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.


Wind Advisory issued May 30 at 2:58AM EDT until May 30 at 11:00AM EDT by NWS Gray ME

Effective: Sat May 30, 2026, 2:58 AM
Expires: Sat May 30, 2026, 11:00 AM

* WHAT...Northeast winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...In Maine, Interior York County. In New Hampshire, Strafford, Eastern Hillsborough, and Interior Rockingham Counties. * WHEN...Until 11 AM EDT this morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.


Wind Advisory issued May 30 at 2:58AM EDT until May 30 at 11:00AM EDT by NWS Gray ME

Effective: Sat May 30, 2026, 2:58 AM
Expires: Sat May 30, 2026, 11:00 AM

* WHAT...Northeast winds 20 to 30 mph with gusts up to 55 mph expected. * WHERE...In Maine, Coastal Cumberland and Coastal York Counties. In New Hampshire, Coastal Rockingham County. * WHEN...Until 11 AM EDT this morning. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.
Saturday, May 30, 2026

Weather Forecast

Heavy rain
52°F
42.6°F
49.7°F
82%
0.88 in
83%
0%
21 mph
2.2


Air Quality

AQI: 1 - Good
PM2.5: 4.24 μg/m3
PM10: 4.7 μg/m3
Carbon Monoxide: 148.27 μg/m3
Nitrogen Dioxide: 7 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 73.08 μg/m3

Astronomical

Sunrise: 5:12 AM
Sun Transit: 12:42 AM
Sunset: 8:14 PM
Daylight: 15 hrs 3 mins
Moonrise: 8:10 PM
Moon Transit: 12:00 AM
Moonset: 4:12 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:11 PM - 4:41 PM

Minor Periods

7:40 PM - 9:10 PM
3:42 AM - 5:12 AM

Action Rating: 4 out of 5

Sunday, May 31, 2026

Weather Forecast

Patchy rain nearby
70.7°F
40.7°F
55.4°F
63%
0.02 in
89%
0%
6.9 mph
6.3


Air Quality

AQI: 1 - Good
PM2.5: 7.08 μg/m3
PM10: 7.52 μg/m3
Carbon Monoxide: 123.04 μg/m3
Nitrogen Dioxide: 12.53 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 65.5 μg/m3

Astronomical

Sunrise: 5:11 AM
Sun Transit: 12:42 AM
Sunset: 8:15 PM
Daylight: 15 hrs 4 mins
Moonrise: 9:08 PM
Moon Transit: 12:30 AM
Moonset: 4:49 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 2:30 AM
3:01 PM - 5:31 PM

Minor Periods

8:38 PM - 10:08 PM
4:19 AM - 5:49 AM

Action Rating: 4 out of 5

Monday, June 1, 2026

Weather Forecast

Heavy rain
67.1°F
51.5°F
57°F
88%
1.37 in
89%
0%
6.3 mph
6.4


Air Quality

AQI: 1 - Good
PM2.5: 9 μg/m3
PM10: 9.94 μg/m3
Carbon Monoxide: 165.98 μg/m3
Nitrogen Dioxide: 14.43 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 73.17 μg/m3

Astronomical

Sunrise: 5:11 AM
Sun Transit: 12:43 AM
Sunset: 8:16 PM
Daylight: 15 hrs 5 mins
Moonrise: 10:01 PM
Moon Transit: 1:21 AM
Moonset: 5:33 AM
Moon Phase: Full
Moon Illumination: 96.8%

Best Times for Fishing or Hunting

Major Periods

12:51 AM - 3:21 AM
3:52 PM - 6:22 PM

Minor Periods

9:31 PM - 11:01 PM
5:03 AM - 6:33 AM

Action Rating: 4 out of 5

Tuesday, June 2, 2026

Weather Forecast

Heavy rain
54.1°F
49.4°F
53.2°F
96%
1.76 in
73%
0%
16.1 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 11.28 μg/m3
PM10: 12.54 μg/m3
Carbon Monoxide: 210.42 μg/m3
Nitrogen Dioxide: 19.71 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 61.33 μg/m3

Astronomical

Sunrise: 5:10 AM
Sun Transit: 12:43 AM
Sunset: 8:17 PM
Daylight: 15 hrs 7 mins
Moonrise: 10:46 PM
Moon Transit: 2:13 AM
Moonset: 6:27 AM
Moon Phase: Full
Moon Illumination: 91.7%

Best Times for Fishing or Hunting

Major Periods

1:43 AM - 4:13 AM
4:43 PM - 7:13 PM

Minor Periods

10:16 PM - 11:46 PM
5:57 AM - 7:27 AM

Action Rating: 3 out of 5

Wednesday, June 3, 2026

Weather Forecast

Moderate rain
69.4°F
46.5°F
55.9°F
78%
0.33 in
72%
0%
13.2 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 9.57 μg/m3
PM10: 11.58 μg/m3
Carbon Monoxide: 189.11 μg/m3
Nitrogen Dioxide: 22.27 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 43.67 μg/m3

Astronomical

Sunrise: 5:10 AM
Sun Transit: 12:43 AM
Sunset: 8:17 PM
Daylight: 15 hrs 8 mins
Moonrise: 11:22 PM
Moon Transit: 3:03 AM
Moonset: 7:26 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.4%

Best Times for Fishing or Hunting

Major Periods

2:33 AM - 5:03 AM
5:33 PM - 8:03 PM

Minor Periods

12:00 AM - 12:00 AM
6:56 AM - 8:26 AM

Action Rating: 4 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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