Water Temperature of Stony Brook Tributary in Waltham, MA

Current Water Temperature

49.3°F

Measurement Time: Tuesday, February 17, 2026, 4:40 PM EST

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

36°F
Overcast
Overcast
31.2°F
35.4°F
82%
SW 5.6 mph
11.7 mph
31°F
32.3°F
0 in
100%
8 mi
1017 mbar
0

Five Day Weather Forecast

Overcast
Tue
H: 39°F
L: 26°F
Partly Cloudy
Wed
H: 47°F
L: 29°F
Partly Cloudy
Thu
H: 37°F
L: 27°F
Freezing fog
Fri
H: 33°F
L: 23°F
Light snow
Sat
H: 35°F
L: 28°F

Air Quality

AQI: 1 - Good
PM2.5: 31.15 μg/m3
PM10: 31.95 μg/m3
Carbon Monoxide: 367.85 μg/m3
Nitrogen Dioxide: 35.85 μg/m3
Sulphur Dioxide: 3.45 μg/m3
Ozone: 33 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 12:00 AM
Sunset: 5:20 PM
Daylight: 10 hrs 41 mins
Moonrise: 6:49 AM
Moon Transit: 12:09 AM
Moonset: 5:42 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:51 AM - 4:21 AM
11:39 AM - 2:09 PM

Minor Periods

5:12 PM - 6:42 PM
6:19 AM - 7:49 AM

Action Rating: 5 out of 5

Winter Weather Advisory issued February 17 at 11:38AM EST until February 19 at 4:00AM EST by NWS Boston/Norton MA

Effective: Tue February 17, 2026, 11:38 AM
Expires: Wed February 18, 2026, 4:00 AM

* WHAT...Snow expected. Total snow accumulations between 2 and 4 inches. * WHERE...Much of western and central Massachusetts. * WHEN...From 1 PM Wednesday to 4 AM EST Thursday. * IMPACTS...Travel will likely be impacted Wednesday afternoon and Wednesday night due to low visibility at times and snow covered roads.

Plan on extra travel time. Slow down and use caution while traveling.
Tuesday, February 17, 2026

Weather Forecast

Overcast
38.8°F
25.7°F
32.7°F
78%
0 in
0%
0%
6.5 mph
0.3


Air Quality

AQI: 2 - Moderate
PM2.5: 31.17 μg/m3
PM10: 34.41 μg/m3
Carbon Monoxide: 507.37 μg/m3
Nitrogen Dioxide: 59.93 μg/m3
Sulphur Dioxide: 5.25 μg/m3
Ozone: 22.12 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 12:00 AM
Sunset: 5:20 PM
Daylight: 10 hrs 41 mins
Moonrise: 6:49 AM
Moon Transit: 12:09 AM
Moonset: 5:42 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:51 AM - 4:21 AM
11:39 AM - 2:09 PM

Minor Periods

5:12 PM - 6:42 PM
6:19 AM - 7:49 AM

Action Rating: 5 out of 5

Wednesday, February 18, 2026

Weather Forecast

Partly Cloudy
46.6°F
29.3°F
33.8°F
89%
0 in
0%
0%
6 mph
0.3


Air Quality

AQI: 2 - Moderate
PM2.5: 29.22 μg/m3
PM10: 30.31 μg/m3
Carbon Monoxide: 510.25 μg/m3
Nitrogen Dioxide: 48.21 μg/m3
Sulphur Dioxide: 5.41 μg/m3
Ozone: 30.16 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 11:58 AM
Sunset: 5:21 PM
Daylight: 10 hrs 44 mins
Moonrise: 7:10 AM
Moon Transit: 12:55 AM
Moonset: 6:53 PM
Moon Phase: New
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
12:25 AM - 2:55 PM

Minor Periods

6:23 PM - 7:53 PM
6:40 AM - 8:10 AM

Action Rating: 4 out of 5

Thursday, February 19, 2026

Weather Forecast

Partly Cloudy
36.9°F
27.1°F
32.5°F
80%
0 in
0%
0%
4.3 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 9.11 μg/m3
PM10: 9.76 μg/m3
Carbon Monoxide: 322.93 μg/m3
Nitrogen Dioxide: 25.41 μg/m3
Sulphur Dioxide: 3.42 μg/m3
Ozone: 58.64 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 11:58 AM
Sunset: 5:22 PM
Daylight: 10 hrs 46 mins
Moonrise: 7:31 AM
Moon Transit: 4:07 PM
Moonset: 8:04 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

3:22 AM - 5:52 AM
3:37 PM - 6:07 PM

Minor Periods

7:34 PM - 9:04 PM
7:01 AM - 8:31 AM

Action Rating: 3 out of 5

Friday, February 20, 2026

Weather Forecast

Freezing fog
32.9°F
22.5°F
29.6°F
97%
0.93 in
78%
23%
6.3 mph
0.3


Air Quality

AQI: 2 - Moderate
PM2.5: 27.53 μg/m3
PM10: 29.41 μg/m3
Carbon Monoxide: 500.55 μg/m3
Nitrogen Dioxide: 54.35 μg/m3
Sulphur Dioxide: 5.75 μg/m3
Ozone: 26.76 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 11:58 AM
Sunset: 5:24 PM
Daylight: 10 hrs 49 mins
Moonrise: 7:52 AM
Moon Transit: 2:27 PM
Moonset: 9:17 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:57 PM - 4:27 PM

Minor Periods

8:47 PM - 10:17 PM
7:22 AM - 8:52 AM

Action Rating: 2 out of 5

Saturday, February 21, 2026

Weather Forecast

Light snow
34.5°F
27.8°F
31.7°F
97%
0.62 in
83%
58%
10.1 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 6.21 μg/m3
PM10: 8.67 μg/m3
Carbon Monoxide: 191.6 μg/m3
Nitrogen Dioxide: 8.12 μg/m3
Sulphur Dioxide: 2.11 μg/m3
Ozone: 78.85 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 11:58 AM
Sunset: 5:25 PM
Daylight: 10 hrs 52 mins
Moonrise: 8:16 AM
Moon Transit: 3:16 PM
Moonset: 10:33 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

4:56 AM - 7:26 AM
2:46 PM - 5:16 PM

Minor Periods

10:03 PM - 11:33 PM
7:46 AM - 9:16 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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