Water Temperature of the Stillwater River in Sterling, MA

Current Water Temperature

78.4°F

Measurement Time: Thursday, July 2, 2026, 8:30 AM EDT

Temperature Locations

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Stillwater River

Station Name: STILLWATER RIVER NEAR STERLING, MA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 423 feet

Nearest Address:
98 Dana Hill Rd
Sterling, MA 01564
Worcester County

GPS Coordinates: 42.41092507, -71.7911829

Nearby Water Temperatures

Quinapoxet River, Holden, MA (3.2 mi)
Gates Brook, West Boylston, MA (3.3 mi)
Nashua River, Clinton, MA (6.4 mi)
Ware River, Barre, MA (14 mi)
Stony Brook, Weston, MA (25.7 mi)
Stony Brook, Waltham, MA (26.4 mi)
Stony Brook Tributary, Weston, MA (26.5 mi)
Cambridge Reservoir, Lincoln, MA (26.5 mi)
Hobbs Brook, Lincoln, MA (26.7 mi)
Stony Brook Tributary, Waltham, MA (26.7 mi)
Stony Brook, Weston, MA (26.7 mi)
Shawsheen River, Bedford, MA (26.7 mi)
Cambridge Reservoir Tributary 1, Lexington, MA (26.9 mi)
Stony Brook Reservoir Tributary, Weston, MA (27 mi)
Cambridge Reservoir Tributary 2, Lexington, MA (27.1 mi)

Weather for Sterling, Massachusetts

Current Weather

91.9°F
Sunny
Sunny
96.7°F
109.8°F
47%
W 7.8 mph
9 mph
98.2°F
72.8°F
0 in
0%
9 mi
1014 mbar
9.6

Five Day Weather Forecast

Sunny
Thu
H: 100°F
L: 75°F
Sunny
Fri
H: 99°F
L: 73°F
Sunny
Sat
H: 89°F
L: 68°F
Sunny
Sun
H: 86°F
L: 59°F
Sunny
Mon
H: 83°F
L: 59°F

Air Quality

AQI: 1 - Good
PM2.5: 17.3 μg/m3
PM10: 21.8 μg/m3
Carbon Monoxide: 144 μg/m3
Nitrogen Dioxide: 1 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 125 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 12:51 AM
Sunset: 8:28 PM
Daylight: 15 hrs 14 mins
Moonrise: 10:24 PM
Moon Transit: 2:39 AM
Moonset: 7:29 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:09 AM - 4:39 AM
5:03 PM - 7:33 PM

Minor Periods

9:54 PM - 11:24 PM
6:59 AM - 8:29 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


Air Quality Alert issued July 2 at 12:45AM EDT by NWS Gray ME

Effective: Thu July 2, 2026, 12:45 AM
Expires: Thu July 2, 2026, 10:00 PM

The New Hampshire Department of Environmental Services has issued a Code Orange Air Quality Alert for particle pollution from 10 AM this morning to 10 PM EDT this evening. A Code Orange Air Quality Alert means that air pollution concentrations within the above mentioned counties may become unhealthy for sensitive groups. Sensitive groups include children and older adults; anyone with lung disease such as asthma, emphysema, and bronchitis; and people who are active outdoors. Even healthy individuals may experience mild health effects and should consider limiting strenuous or prolonged outdoor activities. For additional information, please visit the New Hampshire Department of Environmental Prediction website at, https://www4.des.state.nh.us/airdata/
Thursday, July 2, 2026

Weather Forecast

Sunny
100°F
74.8°F
86.6°F
61%
0.02 in
36%
0%
11.2 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 14.19 μg/m3
PM10: 17 μg/m3
Carbon Monoxide: 161.46 μg/m3
Nitrogen Dioxide: 4.79 μg/m3
Sulphur Dioxide: 0.85 μg/m3
Ozone: 98.63 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 12:51 AM
Sunset: 8:28 PM
Daylight: 15 hrs 14 mins
Moonrise: 10:24 PM
Moon Transit: 2:39 AM
Moonset: 7:29 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:09 AM - 4:39 AM
5:03 PM - 7:33 PM

Minor Periods

9:54 PM - 11:24 PM
6:59 AM - 8:29 AM

Action Rating: 2 out of 5

Friday, July 3, 2026

Weather Forecast

Sunny
98.5°F
73.3°F
86°F
57%
0 in
3%
0%
11 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 7.95 μg/m3
PM10: 9.07 μg/m3
Carbon Monoxide: 140.21 μg/m3
Nitrogen Dioxide: 3.04 μg/m3
Sulphur Dioxide: 0.85 μg/m3
Ozone: 102.88 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:51 AM
Sunset: 8:28 PM
Daylight: 15 hrs 13 mins
Moonrise: 10:47 PM
Moon Transit: 3:25 AM
Moonset: 8:36 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

2:55 AM - 5:25 AM
5:47 PM - 8:17 PM

Minor Periods

10:17 PM - 11:47 PM
8:06 AM - 9:36 AM

Action Rating: 4 out of 5

Saturday, July 4, 2026

Weather Forecast

Sunny
88.5°F
67.7°F
80.1°F
62%
0 in
17%
0%
11.9 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 7.14 μg/m3
PM10: 7.85 μg/m3
Carbon Monoxide: 136.71 μg/m3
Nitrogen Dioxide: 2.74 μg/m3
Sulphur Dioxide: 0.51 μg/m3
Ozone: 91.38 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 12:51 AM
Sunset: 8:28 PM
Daylight: 15 hrs 12 mins
Moonrise: 11:07 PM
Moon Transit: 4:09 AM
Moonset: 9:41 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.6%

Best Times for Fishing or Hunting

Major Periods

3:39 AM - 6:09 AM
6:30 PM - 9:00 PM

Minor Periods

12:00 AM - 12:00 AM
9:11 AM - 10:41 AM

Action Rating: 2 out of 5

Sunday, July 5, 2026

Weather Forecast

Sunny
86.1°F
59.2°F
72.4°F
54%
0 in
3%
0%
5.8 mph
2.6


Air Quality

AQI: 1 - Good
PM2.5: 11.69 μg/m3
PM10: 12.19 μg/m3
Carbon Monoxide: 188.43 μg/m3
Nitrogen Dioxide: 3.4 μg/m3
Sulphur Dioxide: 0.71 μg/m3
Ozone: 94.79 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:51 AM
Sunset: 8:27 PM
Daylight: 15 hrs 11 mins
Moonrise: 12:07 AM
Moon Transit: 4:51 AM
Moonset: 10:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.8%

Best Times for Fishing or Hunting

Major Periods

4:21 AM - 6:51 AM
7:13 PM - 9:43 PM

Minor Periods

10:18 AM - 11:48 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, July 6, 2026

Weather Forecast

Sunny
83.2°F
59.4°F
70.1°F
55%
0 in
4%
0%
9.6 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 15.02 μg/m3
PM10: 16.2 μg/m3
Carbon Monoxide: 308.44 μg/m3
Nitrogen Dioxide: 9 μg/m3
Sulphur Dioxide: 0.72 μg/m3
Ozone: 68.67 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 12:52 AM
Sunset: 8:27 PM
Daylight: 15 hrs 10 mins
Moonrise: 12:27 AM
Moon Transit: 1:15 PM
Moonset: 11:54 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

11:24 AM - 12:54 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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