Water Temperature of Stony Brook Tributary in Waltham, MA

Current Water Temperature

75.0°F

Measurement Time: Wednesday, July 22, 2026, 2:40 PM EDT

Temperature Locations

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Stony Brook Tributary

Station Name: STONY BROOK, UNNAMED TRIBUTARY 1, NEAR WALTHAM, MA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 121 feet

Nearest Address:
US Hwy 20
Waltham, MA 02453
Middlesex County

GPS Coordinates: 42.37259606, -71.27033448

Nearby Water Temperatures

Stony Brook, Weston, MA (0.2 mi)
Stony Brook Tributary, Weston, MA (0.3 mi)
Stony Brook Reservoir Tributary, Weston, MA (1.3 mi)
Stony Brook, Weston, MA (1.3 mi)
Stony Brook, Waltham, MA (1.8 mi)
Cambridge Reservoir Tributary 3, Waltham, MA (3.3 mi)
Cambridge Reservoir, Lincoln, MA (3.4 mi)
Cambridge Reservoir Tributary 2, Lexington, MA (4.4 mi)
Hobbs Brook, Lincoln, MA (4.4 mi)
Cambridge Reservoir Tributary 1, Lexington, MA (4.4 mi)
Fresh Pond, Cambridge, MA (6.4 mi)
Shawsheen River, Bedford, MA (6.5 mi)
Nashua River, Clinton, MA (20.5 mi)
Gates Brook, West Boylston, MA (25.8 mi)
Stillwater River, Sterling, MA (26.7 mi)

Weather for Waltham, Massachusetts

Current Weather

75.9°F
Partly cloudy
Partly cloudy
79.6°F
79.7°F
88%
WNW 9.2 mph
13.8 mph
75.9°F
70.3°F
0 in
75%
9 mi
1007 mbar
0.2

Five Day Weather Forecast

Sunny
Wed
H: 87°F
L: 66°F
Sunny
Thu
H: 82°F
L: 60°F
Sunny
Fri
H: 86°F
L: 57°F
Sunny
Sat
H: 83°F
L: 59°F
Sunny
Sun
H: 83°F
L: 56°F

Air Quality

AQI: 2 - Moderate
PM2.5: 4.8 μg/m3
PM10: 4.9 μg/m3
Carbon Monoxide: 181 μg/m3
Nitrogen Dioxide: 4.2 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 106 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 12:51 AM
Sunset: 8:15 PM
Daylight: 14 hrs 47 mins
Moonrise: 2:49 PM
Moon Transit: 7:34 PM
Moonset: 12:46 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

9:16 AM - 11:46 AM
7:04 PM - 9:34 PM

Minor Periods

2:19 PM - 3:49 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

High Surf Advisory issued July 22 at 3:33AM EDT until July 23 at 8:00PM EDT by NWS Boston/Norton MA

Effective: Wed July 22, 2026, 3:33 AM
Expires: Wed July 22, 2026, 4:45 PM

* WHAT...Large breaking waves of 4 to 9 feet expected in the surf zone. * WHERE...Washington, Southern Bristol MA, Southern Plymouth MA, Barnstable MA, Dukes MA, Nantucket MA, and Newport RI Counties. * WHEN...Until 8 PM EDT Thursday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion.

Inexperienced swimmers should remain out of the water due to dangerous surf conditions.
Wednesday, July 22, 2026

Weather Forecast

Sunny
87.4°F
65.5°F
74.8°F
83%
0.11 in
65%
0%
14.3 mph
5.2


Air Quality

AQI: 1 - Good
PM2.5: 4.57 μg/m3
PM10: 4.68 μg/m3
Carbon Monoxide: 156.58 μg/m3
Nitrogen Dioxide: 6.03 μg/m3
Sulphur Dioxide: 0.76 μg/m3
Ozone: 94.25 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 12:51 AM
Sunset: 8:15 PM
Daylight: 14 hrs 47 mins
Moonrise: 2:49 PM
Moon Transit: 7:34 PM
Moonset: 12:46 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

9:16 AM - 11:46 AM
7:04 PM - 9:34 PM

Minor Periods

2:19 PM - 3:49 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
81.6°F
60.1°F
69.2°F
55%
0 in
2%
0%
7.6 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 5.41 μg/m3
PM10: 5.53 μg/m3
Carbon Monoxide: 162.5 μg/m3
Nitrogen Dioxide: 9.85 μg/m3
Sulphur Dioxide: 0.61 μg/m3
Ozone: 74.13 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 12:51 AM
Sunset: 8:14 PM
Daylight: 14 hrs 45 mins
Moonrise: 3:54 PM
Moon Transit: 8:22 PM
Moonset: 12:14 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

10:03 AM - 12:33 AM
7:52 PM - 10:22 PM

Minor Periods

3:24 PM - 4:54 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
85.9°F
56.7°F
70.3°F
53%
0 in
2%
0%
9.4 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 12.13 μg/m3
PM10: 12.52 μg/m3
Carbon Monoxide: 193 μg/m3
Nitrogen Dioxide: 21.83 μg/m3
Sulphur Dioxide: 0.89 μg/m3
Ozone: 78.04 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 12:51 AM
Sunset: 8:13 PM
Daylight: 14 hrs 44 mins
Moonrise: 4:56 PM
Moon Transit: 9:12 PM
Moonset: 12:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

10:52 AM - 1:22 PM
8:42 PM - 11:12 PM

Minor Periods

4:26 PM - 5:56 PM
12:17 AM - 1:47 AM

Action Rating: 3 out of 5

Saturday, July 25, 2026

Weather Forecast

Sunny
82.5°F
58.8°F
69.3°F
51%
0 in
2%
0%
8.7 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 13.1 μg/m3
PM10: 14.81 μg/m3
Carbon Monoxide: 164.43 μg/m3
Nitrogen Dioxide: 21.48 μg/m3
Sulphur Dioxide: 0.99 μg/m3
Ozone: 65.79 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 12:51 AM
Sunset: 8:12 PM
Daylight: 14 hrs 42 mins
Moonrise: 5:52 PM
Moon Transit: 10:03 PM
Moonset: 1:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

11:43 AM - 2:13 PM
12:00 AM - 12:00 AM

Minor Periods

5:22 PM - 6:52 PM
12:57 AM - 2:27 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
82.9°F
55.9°F
68.4°F
52%
0 in
2%
0%
9.4 mph
7


Air Quality

AQI: 2 - Moderate
PM2.5: 19.98 μg/m3
PM10: 21.61 μg/m3
Carbon Monoxide: 267.56 μg/m3
Nitrogen Dioxide: 41.12 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 17.67 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 12:51 AM
Sunset: 8:11 PM
Daylight: 14 hrs 40 mins
Moonrise: 6:42 PM
Moon Transit: 10:55 PM
Moonset: 2:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

12:34 AM - 3:04 PM
12:00 AM - 12:00 AM

Minor Periods

6:12 PM - 7:42 PM
1:45 AM - 3:15 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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