Water Temperature of Stony Brook Tributary in Waltham, MA

Current Water Temperature

56.8°F

Measurement Time: Thursday, July 2, 2026, 12:40 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

97°F
Sunny
Sunny
102.7°F
114.2°F
41%
WNW 11.2 mph
12.9 mph
102.6°F
71.6°F
0 in
25%
9 mi
1012 mbar
2.5

Five Day Weather Forecast

Sunny
Thu
H: 105°F
L: 77°F
Sunny
Fri
H: 100°F
L: 78°F
Sunny
Sat
H: 96°F
L: 72°F
Sunny
Sun
H: 87°F
L: 63°F
Partly Cloudy
Mon
H: 73°F
L: 61°F

Air Quality

AQI: 2 - Moderate
PM2.5: 16 μg/m3
PM10: 19.7 μg/m3
Carbon Monoxide: 161 μg/m3
Nitrogen Dioxide: 2.7 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 124 μg/m3

Astronomical

Sunrise: 5:12 AM
Sun Transit: 12:49 AM
Sunset: 8:26 PM
Daylight: 15 hrs 13 mins
Moonrise: 10:22 PM
Moon Transit: 2:37 AM
Moonset: 7:27 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:07 AM - 4:37 AM
5:05 PM - 7:35 PM

Minor Periods

9:52 PM - 11:22 PM
6:57 AM - 8:27 AM

Action Rating: 2 out of 5

Air Quality Alert issued July 2 at 1:52AM EDT by NWS Boston/Norton MA

Effective: Thu July 2, 2026, 1:52 AM
Expires: Thu July 2, 2026, 11:00 PM

The Massachusetts Department of Environmental Protection has issued an Air Quality Alert for Ground Level Ozone, from 11 AM this morning to 11 PM EDT this evening. An Air Quality Alert day means that Ground Level Ozone concentrations within the region may approach or exceed levels that are Unhealthy for Sensitive Groups. Air is unhealthy for sensitive children and adults, such as those with asthma, lung or heart disease, and older adults. Sensitive children and adults should limit prolonged outdoor activity. For additional information, please visit the Massachusetts Department of Environmental Protection website at: https://mass.gov/dep/massair/forecast
Thursday, July 2, 2026

Weather Forecast

Sunny
104.7°F
77°F
90.3°F
57%
0.01 in
17%
0%
12.5 mph
9.1


Air Quality

AQI: 1 - Good
PM2.5: 15.48 μg/m3
PM10: 18.26 μg/m3
Carbon Monoxide: 182.54 μg/m3
Nitrogen Dioxide: 7.32 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 106.88 μg/m3

Astronomical

Sunrise: 5:12 AM
Sun Transit: 12:49 AM
Sunset: 8:26 PM
Daylight: 15 hrs 13 mins
Moonrise: 10:22 PM
Moon Transit: 2:37 AM
Moonset: 7:27 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:07 AM - 4:37 AM
5:05 PM - 7:35 PM

Minor Periods

9:52 PM - 11:22 PM
6:57 AM - 8:27 AM

Action Rating: 2 out of 5

Friday, July 3, 2026

Weather Forecast

Sunny
100.4°F
78.1°F
89.2°F
49%
0 in
2%
0%
12.1 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 9.32 μg/m3
PM10: 10.55 μg/m3
Carbon Monoxide: 156.33 μg/m3
Nitrogen Dioxide: 5.89 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 102.33 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 12:49 AM
Sunset: 8:26 PM
Daylight: 15 hrs 13 mins
Moonrise: 10:45 PM
Moon Transit: 3:23 AM
Moonset: 8:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

2:53 AM - 5:23 AM
5:49 PM - 8:19 PM

Minor Periods

10:15 PM - 11:45 PM
8:04 AM - 9:34 AM

Action Rating: 4 out of 5

Saturday, July 4, 2026

Weather Forecast

Sunny
95.9°F
71.9°F
84.5°F
51%
0 in
2%
0%
13.9 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 8.3 μg/m3
PM10: 9.07 μg/m3
Carbon Monoxide: 152.13 μg/m3
Nitrogen Dioxide: 5.24 μg/m3
Sulphur Dioxide: 0.61 μg/m3
Ozone: 89.83 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 12:49 AM
Sunset: 8:25 PM
Daylight: 15 hrs 12 mins
Moonrise: 11:05 PM
Moon Transit: 4:07 AM
Moonset: 9:39 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.6%

Best Times for Fishing or Hunting

Major Periods

3:37 AM - 6:07 AM
6:32 PM - 9:02 PM

Minor Periods

12:00 AM - 12:00 AM
9:09 AM - 10:39 AM

Action Rating: 2 out of 5

Sunday, July 5, 2026

Weather Forecast

Sunny
87.3°F
63.1°F
75.2°F
48%
0 in
2%
0%
7.4 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 13.26 μg/m3
PM10: 13.88 μg/m3
Carbon Monoxide: 196.12 μg/m3
Nitrogen Dioxide: 5.75 μg/m3
Sulphur Dioxide: 0.87 μg/m3
Ozone: 87 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 12:49 AM
Sunset: 8:25 PM
Daylight: 15 hrs 11 mins
Moonrise: 12:05 AM
Moon Transit: 4:49 AM
Moonset: 10:45 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.8%

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
7:15 PM - 9:45 PM

Minor Periods

10:15 AM - 11:45 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, July 6, 2026

Weather Forecast

Partly Cloudy
73.2°F
60.8°F
66.8°F
70%
0.2 in
71%
0%
7.4 mph
2.1


Air Quality

AQI: 2 - Moderate
PM2.5: 22.7 μg/m3
PM10: 24.07 μg/m3
Carbon Monoxide: 339.22 μg/m3
Nitrogen Dioxide: 13.72 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 63 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:49 AM
Sunset: 8:25 PM
Daylight: 15 hrs 10 mins
Moonrise: 12:25 AM
Moon Transit: 1:15 PM
Moonset: 11:52 AM
Moon Phase: Last Quarter
Moon Illumination: 48.6%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 PM
12:45 AM - 3:15 PM

Minor Periods

11:22 AM - 12:52 AM
12:00 AM - 12:00 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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