Water Temperature of the Stillwater River in Sterling, MA

Current Water Temperature

75.2°F

Measurement Time: Wednesday, July 1, 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

90°F
Sunny
Sunny
95.5°F
107.1°F
49%
W 7.6 mph
9.7 mph
95.4°F
73.8°F
0 in
0%
9 mi
1014 mbar
9.7

Five Day Weather Forecast

Sunny
Wed
H: 98°F
L: 70°F
Sunny
Thu
H: 101°F
L: 74°F
Sunny
Fri
H: 98°F
L: 77°F
Sunny
Sat
H: 96°F
L: 69°F
Light rain shower
Sun
H: 70°F
L: 66°F

Air Quality

AQI: 1 - Good
PM2.5: 10.8 μg/m3
PM10: 12.4 μg/m3
Carbon Monoxide: 137 μg/m3
Nitrogen Dioxide: 1.4 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 135 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 12:51 AM
Sunset: 8:28 PM
Daylight: 15 hrs 14 mins
Moonrise: 9:57 PM
Moon Transit: 1:52 AM
Moonset: 6:25 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:22 AM - 3:52 AM
4:16 PM - 6:46 PM

Minor Periods

9:27 PM - 10:57 PM
5:55 AM - 7:25 AM

Action Rating: 3 out of 5

Air Quality Alert issued July 1 at 10:04AM EDT by NWS Boston/Norton MA

Effective: Wed July 1, 2026, 10:04 AM
Expires: Wed July 1, 2026, 11:00 PM

The Massachusetts Department of Environmental Protection has issued an Air Quality Alert for Ground Level Ozone, until 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 1 at 9:16AM EDT by NWS Boston/Norton MA

Effective: Wed July 1, 2026, 9:16 AM
Expires: Wed July 1, 2026, 11:00 PM

The Massachusetts Department of Environmental Protection has issued an Air Quality Alert for Ground Level Ozone, until 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. Air is unhealthy. Everyone may begin to experience health effects, and sensitive children and adults, such as those with asthma, lung or heart disease, and older adults, may experience more serious effects. Everyone should reduce the time spent and intensity of activities outdoors and take more breaks. Sensitive children and adults should consider moving indoors or rescheduling outdoor activities. For information on how to protect yourself from smoke, visit the California smoke website: https://tinyurl.com/5cywd5ae. For additional information, please visit the Massachusetts Department of Environmental Protection website at: https://mass.gov/dep/massair/forecast
Wednesday, July 1, 2026

Weather Forecast

Sunny
97.5°F
70.3°F
82.4°F
64%
0 in
5%
0%
9.2 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 10.9 μg/m3
PM10: 12.1 μg/m3
Carbon Monoxide: 141.96 μg/m3
Nitrogen Dioxide: 4.55 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 110.17 μg/m3

Astronomical

Sunrise: 5:14 AM
Sun Transit: 12:51 AM
Sunset: 8:28 PM
Daylight: 15 hrs 14 mins
Moonrise: 9:57 PM
Moon Transit: 1:52 AM
Moonset: 6:25 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:22 AM - 3:52 AM
4:16 PM - 6:46 PM

Minor Periods

9:27 PM - 10:57 PM
5:55 AM - 7:25 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Sunny
101°F
73.9°F
87°F
58%
0 in
3%
0%
11.9 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 11.15 μg/m3
PM10: 13.15 μg/m3
Carbon Monoxide: 144.21 μg/m3
Nitrogen Dioxide: 4.84 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 106.79 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
97.7°F
76.8°F
86.4°F
56%
0 in
3%
0%
13.2 mph
9.2


Air Quality

AQI: 1 - Good
PM2.5: 7.98 μg/m3
PM10: 9.16 μg/m3
Carbon Monoxide: 132.5 μg/m3
Nitrogen Dioxide: 3.51 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 105.17 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
96°F
69.2°F
80.4°F
68%
0.41 in
68%
0%
7.8 mph
9.4


Air Quality

AQI: 1 - Good
PM2.5: 5.39 μg/m3
PM10: 5.84 μg/m3
Carbon Monoxide: 141.94 μg/m3
Nitrogen Dioxide: 3.53 μg/m3
Sulphur Dioxide: 0.49 μg/m3
Ozone: 87.33 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

Light rain shower
70°F
66.4°F
68.2°F
99%
1.14 in
95%
0%
5.6 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 7.56 μg/m3
PM10: 7.62 μg/m3
Carbon Monoxide: 238.67 μg/m3
Nitrogen Dioxide: 6.64 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 65.44 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

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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