Water Temperature of Stony Brook in Weston, MA

Current Water Temperature

46.8°F

Measurement Time: Saturday, March 28, 2026, 2:10 PM EDT

Temperature Locations

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Local Points of Interest

South Quarry Pond; Stony Brook Reservoir; Waltham, MA

Stony Brook

Station Name: STONY BROOK AT RT 20 AT WALTHAM, MA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 105 feet

Nearest Address:
99 Sibley Rd
Weston, MA 02493
Middlesex County

GPS Coordinates: 42.368985, -71.2706123

Nearby Water Temperatures

Stony Brook Tributary, Waltham, MA (0.2 mi)
Stony Brook Tributary, Weston, MA (0.3 mi)
Stony Brook Reservoir Tributary, Weston, MA (1 mi)
Stony Brook, Weston, MA (1.5 mi)
Stony Brook, Waltham, MA (2 mi)
Cambridge Reservoir Tributary 3, Waltham, MA (3.6 mi)
Cambridge Reservoir, Lincoln, MA (3.6 mi)
Cambridge Reservoir Tributary 2, Lexington, MA (4.7 mi)
Hobbs Brook, Lincoln, MA (4.7 mi)
Cambridge Reservoir Tributary 1, Lexington, MA (4.7 mi)
Fresh Pond, Cambridge, MA (6.5 mi)
Shawsheen River, Bedford, MA (6.8 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 Weston, Massachusetts

Current Weather

35.1°F
Partly cloudy
Partly cloudy
28.1°F
35.8°F
28%
WNW 8.7 mph
11.3 mph
28.2°F
10°F
0 in
75%
9 mi
1028 mbar
0.2

Five Day Weather Forecast

Partly Cloudy
Sat
H: 39°F
L: 26°F
Sunny
Sun
H: 51°F
L: 28°F
Overcast
Mon
H: 60°F
L: 38°F
Patchy rain nearby
Tue
H: 69°F
L: 49°F
Moderate rain
Wed
H: 77°F
L: 56°F

Air Quality

AQI: 1 - Good
PM2.5: 9.05 μg/m3
PM10: 9.95 μg/m3
Carbon Monoxide: 286.85 μg/m3
Nitrogen Dioxide: 24.35 μg/m3
Sulphur Dioxide: 3.45 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:00 AM
Sunset: 7:06 PM
Daylight: 12 hrs 32 mins
Moonrise: 2:29 PM
Moon Transit: 9:51 PM
Moonset: 4:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

11:31 AM - 2:01 PM
9:21 PM - 11:51 PM

Minor Periods

1:59 PM - 3:29 PM
4:03 AM - 5:33 AM

Action Rating: 2 out of 5

Special Weather Statement issued March 28 at 2:09PM EDT by NWS Boston/Norton MA

Effective: Sat March 28, 2026, 2:09 PM
Expires: Sun March 29, 2026, 6:00 AM

A dry but breezy day is forecast for Sunday, with relative humidities in the afternoon expected to drop into the 30 to 40 percent range and southwesterly wind gusts between 25 and 30 mph. When combined with the lack of recent significant rainfall, elevated fire weather potential will exist for Sunday. Use caution when handling and disposing of ignition sources such as matches and cigarettes.


Saturday, March 28, 2026

Weather Forecast

Partly Cloudy
38.5°F
25.7°F
32.3°F
44%
0 in
0%
4%
10.3 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 7.54 μg/m3
PM10: 8.05 μg/m3
Carbon Monoxide: 266.17 μg/m3
Nitrogen Dioxide: 15.27 μg/m3
Sulphur Dioxide: 3.4 μg/m3
Ozone: 76.32 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:00 AM
Sunset: 7:06 PM
Daylight: 12 hrs 32 mins
Moonrise: 2:29 PM
Moon Transit: 9:51 PM
Moonset: 4:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

11:31 AM - 2:01 PM
9:21 PM - 11:51 PM

Minor Periods

1:59 PM - 3:29 PM
4:03 AM - 5:33 AM

Action Rating: 2 out of 5

Sunday, March 29, 2026

Weather Forecast

Sunny
51.1°F
27.7°F
37.7°F
53%
0 in
0%
0%
11.2 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 6.64 μg/m3
PM10: 7.82 μg/m3
Carbon Monoxide: 233.05 μg/m3
Nitrogen Dioxide: 13.57 μg/m3
Sulphur Dioxide: 3.3 μg/m3
Ozone: 79.48 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 12:00 AM
Sunset: 7:08 PM
Daylight: 12 hrs 35 mins
Moonrise: 3:41 PM
Moon Transit: 10:38 PM
Moonset: 5:00 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.2%

Best Times for Fishing or Hunting

Major Periods

12:20 AM - 2:50 PM
12:00 AM - 12:00 AM

Minor Periods

3:11 PM - 4:41 PM
4:30 AM - 6:00 AM

Action Rating: 2 out of 5

Monday, March 30, 2026

Weather Forecast

Overcast
59.5°F
37.9°F
47.2°F
72%
0 in
0%
0%
14.3 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 10.39 μg/m3
PM10: 11.88 μg/m3
Carbon Monoxide: 235.29 μg/m3
Nitrogen Dioxide: 15.1 μg/m3
Sulphur Dioxide: 5.33 μg/m3
Ozone: 86.72 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 12:00 AM
Sunset: 7:09 PM
Daylight: 12 hrs 37 mins
Moonrise: 4:51 PM
Moon Transit: 11:23 PM
Moonset: 5:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

1:05 PM - 3:35 PM
12:00 AM - 12:00 AM

Minor Periods

4:21 PM - 5:51 PM
4:53 AM - 6:23 AM

Action Rating: 3 out of 5

Tuesday, March 31, 2026

Weather Forecast

Patchy rain nearby
69.1°F
49.3°F
57.5°F
76%
0.03 in
56%
0%
13.4 mph
0.9


Air Quality

AQI: 2 - Moderate
PM2.5: 23.25 μg/m3
PM10: 23.89 μg/m3
Carbon Monoxide: 313.42 μg/m3
Nitrogen Dioxide: 55.02 μg/m3
Sulphur Dioxide: 7.57 μg/m3
Ozone: 21.56 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 12:00 AM
Sunset: 7:10 PM
Daylight: 12 hrs 40 mins
Moonrise: 5:58 PM
Moon Transit: 12:00 AM
Moonset: 5:43 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:49 PM - 4:19 PM

Minor Periods

5:28 PM - 6:58 PM
5:13 AM - 6:43 AM

Action Rating: 4 out of 5

Wednesday, April 1, 2026

Weather Forecast

Moderate rain
77.4°F
56.2°F
64.6°F
75%
0.26 in
88%
0%
15.4 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 14 μg/m3
PM10: 14.9 μg/m3
Carbon Monoxide: 319.37 μg/m3
Nitrogen Dioxide: 31.77 μg/m3
Sulphur Dioxide: 4.77 μg/m3
Ozone: 57.46 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 12:00 AM
Sunset: 7:11 PM
Daylight: 12 hrs 43 mins
Moonrise: 7:04 PM
Moon Transit: 12:06 AM
Moonset: 6:03 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

6:34 PM - 8:04 PM
5:33 AM - 7:03 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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