Water Temperature of the Stillwater River in Sterling, MA

Current Water Temperature

73.4°F

Measurement Time: Thursday, August 6, 2026, 1:30 PM 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

88.7°F
Sunny
Sunny
99.5°F
99.5°F
66%
W 6 mph
10.8 mph
88.7°F
75.7°F
0 in
9%
6 mi
1018 mbar
0.7

Five Day Weather Forecast

Sunny
Thu
H: 92°F
L: 70°F
Sunny
Fri
H: 93°F
L: 72°F
Patchy rain nearby
Sat
H: 91°F
L: 68°F
Sunny
Sun
H: 90°F
L: 67°F
Sunny
Mon
H: 90°F
L: 65°F

Air Quality

AQI: 1 - Good
PM2.5: 6.9 μg/m3
PM10: 7 μg/m3
Carbon Monoxide: 151 μg/m3
Nitrogen Dioxide: 4.5 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 121 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 12:53 AM
Sunset: 8:01 PM
Daylight: 14 hrs 16 mins
Moonrise: 12:08 AM
Moon Transit: 6:45 AM
Moonset: 2:37 PM
Moon Phase: Last Quarter
Moon Illumination: 32.3%

Best Times for Fishing or Hunting

Major Periods

6:15 AM - 8:45 AM
9:15 PM - 11:45 PM

Minor Periods

2:07 PM - 3:37 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Heat Advisory issued August 6 at 2:46AM EDT until August 6 at 8:00PM EDT by NWS Gray ME

Effective: Thu August 6, 2026, 2:46 AM
Expires: Thu August 6, 2026, 4:15 PM

* WHAT...Heat index values up to 97 expected. * WHERE...Eastern Hillsborough and Interior Rockingham Counties. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.


Heat Advisory issued August 6 at 2:18PM EDT until August 6 at 8:00PM EDT by NWS Gray ME

Effective: Thu August 6, 2026, 2:18 PM
Expires: Fri August 7, 2026, 2:30 AM

* WHAT...For the first Heat Advisory, heat index values up to 99. For the second Heat Advisory, heat index values up to 98 expected. * WHERE...Eastern Hillsborough and Interior Rockingham Counties. * WHEN...For the first Heat Advisory, until 8 PM EDT this evening. For the second Heat Advisory, from 11 AM to 8 PM EDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Heat Advisory issued August 6 at 2:18PM EDT until August 7 at 8:00PM EDT by NWS Gray ME

Effective: Thu August 6, 2026, 2:18 PM
Expires: Fri August 7, 2026, 2:30 AM

* WHAT...For the first Heat Advisory, heat index values up to 99. For the second Heat Advisory, heat index values up to 98 expected. * WHERE...Eastern Hillsborough and Interior Rockingham Counties. * WHEN...For the first Heat Advisory, until 8 PM EDT this evening. For the second Heat Advisory, from 11 AM to 8 PM EDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Thursday, August 6, 2026

Weather Forecast

Sunny
91.9°F
70.2°F
79.2°F
79%
0 in
12%
0%
8.1 mph
7.6


Air Quality

AQI: 1 - Good
PM2.5: 5.73 μg/m3
PM10: 6.38 μg/m3
Carbon Monoxide: 140.17 μg/m3
Nitrogen Dioxide: 5.63 μg/m3
Sulphur Dioxide: 0.79 μg/m3
Ozone: 80.63 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 12:53 AM
Sunset: 8:01 PM
Daylight: 14 hrs 16 mins
Moonrise: 12:08 AM
Moon Transit: 6:45 AM
Moonset: 2:37 PM
Moon Phase: Last Quarter
Moon Illumination: 32.3%

Best Times for Fishing or Hunting

Major Periods

6:15 AM - 8:45 AM
9:15 PM - 11:45 PM

Minor Periods

2:07 PM - 3:37 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, August 7, 2026

Weather Forecast

Sunny
93°F
71.8°F
81°F
65%
0.02 in
36%
0%
7.4 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 7.32 μg/m3
PM10: 7.4 μg/m3
Carbon Monoxide: 175.17 μg/m3
Nitrogen Dioxide: 5.15 μg/m3
Sulphur Dioxide: 0.67 μg/m3
Ozone: 96.5 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 12:52 AM
Sunset: 7:59 PM
Daylight: 14 hrs 14 mins
Moonrise: 12:45 AM
Moon Transit: 7:43 AM
Moonset: 3:53 PM
Moon Phase: Last Quarter
Moon Illumination: 22.2%

Best Times for Fishing or Hunting

Major Periods

7:13 AM - 9:43 AM
12:00 AM - 12:00 AM

Minor Periods

3:23 PM - 4:53 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, August 8, 2026

Weather Forecast

Patchy rain nearby
90.7°F
67.9°F
75.1°F
79%
0.21 in
73%
0%
10.5 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 5.83 μg/m3
PM10: 5.85 μg/m3
Carbon Monoxide: 163.96 μg/m3
Nitrogen Dioxide: 4.15 μg/m3
Sulphur Dioxide: 0.51 μg/m3
Ozone: 95.17 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 12:52 AM
Sunset: 7:58 PM
Daylight: 14 hrs 11 mins
Moonrise: 12:33 AM
Moon Transit: 8:46 AM
Moonset: 5:04 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.6%

Best Times for Fishing or Hunting

Major Periods

8:16 AM - 10:46 AM
12:00 AM - 12:00 AM

Minor Periods

4:34 PM - 6:04 PM
12:03 AM - 1:33 AM

Action Rating: 2 out of 5

Sunday, August 9, 2026

Weather Forecast

Sunny
89.9°F
67.1°F
76.8°F
66%
0 in
5%
0%
11.4 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 6.95 μg/m3
PM10: 7.12 μg/m3
Carbon Monoxide: 169.89 μg/m3
Nitrogen Dioxide: 4.64 μg/m3
Sulphur Dioxide: 0.69 μg/m3
Ozone: 86.04 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 12:52 AM
Sunset: 7:57 PM
Daylight: 14 hrs 9 mins
Moonrise: 1:34 AM
Moon Transit: 9:51 AM
Moonset: 6:04 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:21 AM - 11:51 AM

Minor Periods

5:34 PM - 7:04 PM
1:04 AM - 2:34 AM

Action Rating: 2 out of 5

Monday, August 10, 2026

Weather Forecast

Sunny
89.6°F
64.7°F
76°F
59%
0 in
17%
0%
10.3 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 5.46 μg/m3
PM10: 5.53 μg/m3
Carbon Monoxide: 239.67 μg/m3
Nitrogen Dioxide: 6.68 μg/m3
Sulphur Dioxide: 0.61 μg/m3
Ozone: 69.78 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 12:52 AM
Sunset: 7:55 PM
Daylight: 14 hrs 6 mins
Moonrise: 2:48 AM
Moon Transit: 10:55 AM
Moonset: 6:52 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 AM
10:25 AM - 12:55 AM

Minor Periods

6:22 PM - 7:52 PM
2:18 AM - 3:48 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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