Water Temperature of Stony Brook in Waltham, MA

Current Water Temperature

40.5°F

Measurement Time: Wednesday, February 18, 2026, 6:00 PM EST

Temperature Locations

View Nearby Locations     View All Massachusetts Locations     View Locations Near Me

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

36°F
Overcast
Overcast
31°F
33.4°F
44%
NNE 5.8 mph
9.1 mph
28.1°F
22.1°F
0 in
100%
9 mi
1011 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 48°F
L: 28°F
Sunny
Thu
H: 41°F
L: 27°F
Freezing fog
Fri
H: 33°F
L: 19°F
Moderate or heavy snow showers
Sat
H: 30°F
L: 27°F
Light snow showers
Sun
H: 33°F
L: 18°F

Air Quality

AQI: 2 - Moderate
PM2.5: 4.35 μg/m3
PM10: 4.85 μg/m3
Carbon Monoxide: 202.85 μg/m3
Nitrogen Dioxide: 8.15 μg/m3
Sulphur Dioxide: 2.35 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 6:38 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

Special Weather Statement issued February 18 at 3:20PM EST by NWS Boston/Norton MA

Effective: Wed February 18, 2026, 3:20 PM
Expires: Thu February 19, 2026, 10:00 AM

After a period of light rain/snow showers this afternoon and evening, temperatures will fall below freezing and into the 20s overnight. Light winds will limit how quickly wet surfaces can dry out and thus we expect areas of black ice to develop tonight and persist through the morning commute tomorrow. Travel with caution, especially on untreated surfaces and secondary roads.


Wednesday, February 18, 2026

Weather Forecast

Sunny
47.7°F
27.9°F
37.1°F
79%
0 in
0%
0%
6.3 mph
0.3


Air Quality

AQI: 2 - Moderate
PM2.5: 32.99 μg/m3
PM10: 34.42 μg/m3
Carbon Monoxide: 448.41 μg/m3
Nitrogen Dioxide: 45.78 μg/m3
Sulphur Dioxide: 5.37 μg/m3
Ozone: 32.96 μg/m3

Astronomical

Sunrise: 6:38 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

Sunny
40.5°F
27.1°F
33.6°F
76%
0 in
0%
0%
5.1 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 13.49 μg/m3
PM10: 14.06 μg/m3
Carbon Monoxide: 307.45 μg/m3
Nitrogen Dioxide: 28.3 μg/m3
Sulphur Dioxide: 4.03 μg/m3
Ozone: 57.88 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
33.1°F
19°F
27.7°F
97%
1.81 in
86%
34%
8.1 mph
0.3


Air Quality

AQI: 2 - Moderate
PM2.5: 26.57 μg/m3
PM10: 27.77 μg/m3
Carbon Monoxide: 467.13 μg/m3
Nitrogen Dioxide: 55.75 μg/m3
Sulphur Dioxide: 5.49 μg/m3
Ozone: 24.4 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

Moderate or heavy snow showers
29.7°F
27°F
29.6°F
88%
0.5 in
87%
30%
8.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 7.51 μg/m3
PM10: 8.89 μg/m3
Carbon Monoxide: 250.01 μg/m3
Nitrogen Dioxide: 15.57 μg/m3
Sulphur Dioxide: 3.3 μg/m3
Ozone: 75.72 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

Sunday, February 22, 2026

Weather Forecast

Light snow showers
33°F
18.4°F
28.2°F
87%
0.02 in
68%
41%
12.5 mph
0.4


Air Quality

AQI: 2 - Moderate
PM2.5: 36.61 μg/m3
PM10: 37.73 μg/m3
Carbon Monoxide: 663.76 μg/m3
Nitrogen Dioxide: 70.09 μg/m3
Sulphur Dioxide: 7.25 μg/m3
Ozone: 11.31 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 11:58 AM
Sunset: 5:26 PM
Daylight: 10 hrs 54 mins
Moonrise: 8:42 AM
Moon Transit: 4:08 PM
Moonset: 11:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

5:47 AM - 8:17 AM
3:38 PM - 6:08 PM

Minor Periods

12:00 AM - 12:00 AM
8:12 AM - 9:42 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.

Webcams Near Waltham, MA

Sponsored Content