Water Temperature of the Stillwater River in Sterling, MA

Current Water Temperature

62.8°F

Measurement Time: Thursday, May 21, 2026, 10:30 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

48°F
Clear
Clear
45.4°F
46.7°F
51%
NNE 5.8 mph
10.7 mph
44.5°F
33.6°F
0 in
0%
9 mi
1027 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 65°F
L: 44°F
Partly Cloudy
Sat
H: 61°F
L: 45°F
Moderate rain
Sun
H: 48°F
L: 46°F
Patchy rain nearby
Mon
H: 64°F
L: 48°F
Sunny
Tue
H: 75°F
L: 52°F

Air Quality

PM2.5: 6.35 μg/m3
PM10: 6.85 μg/m3
Carbon Monoxide: 150.85 μg/m3
Nitrogen Dioxide: 6.05 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 71 μg/m3

Astronomical

Sunrise: 5:19 AM
Sun Transit: 12:43 AM
Sunset: 8:09 PM
Daylight: 14 hrs 50 mins
Moonrise: 11:24 AM
Moon Transit: 6:36 PM
Moonset: 1:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

8:12 AM - 10:42 AM
6:06 PM - 8:36 PM

Minor Periods

10:54 AM - 12:24 AM
12:39 AM - 2:09 AM

Action Rating: 3 out of 5

Frost Advisory issued May 21 at 2:45PM EDT until May 22 at 8:00AM EDT by NWS Gray ME

Effective: Thu May 21, 2026, 2:45 PM
Expires: Fri May 22, 2026, 2:45 AM

* WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...In Maine, Central Somerset, Interior Cumberland Highlands, Southern Franklin, and Southern Oxford Counties. In New Hampshire, Sullivan, Northern Carroll, Southern Carroll, Southern Grafton, and Cheshire Counties. * WHEN...From 11 PM this evening to 8 AM EDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Frost Advisory issued May 22 at 1:56AM EDT until May 22 at 8:00AM EDT by NWS Gray ME

Effective: Fri May 22, 2026, 1:56 AM
Expires: Fri May 22, 2026, 8:00 AM

* WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...In Maine, Central Somerset, Interior Cumberland Highlands, Southern Franklin, and Southern Oxford Counties. In New Hampshire, Sullivan, Northern Carroll, Southern Carroll, Southern Grafton, and Cheshire Counties. * WHEN...Until 8 AM EDT this morning. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.
Friday, May 22, 2026

Weather Forecast

Sunny
65°F
44.2°F
54.1°F
45%
0 in
0%
0%
8.1 mph
7.6


Air Quality

AQI: 1 - Good
PM2.5: 5.83 μg/m3
PM10: 6.41 μg/m3
Carbon Monoxide: 154.65 μg/m3
Nitrogen Dioxide: 5.75 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 85.2 μg/m3

Astronomical

Sunrise: 5:19 AM
Sun Transit: 12:43 AM
Sunset: 8:09 PM
Daylight: 14 hrs 50 mins
Moonrise: 11:24 AM
Moon Transit: 6:36 PM
Moonset: 1:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

8:12 AM - 10:42 AM
6:06 PM - 8:36 PM

Minor Periods

10:54 AM - 12:24 AM
12:39 AM - 2:09 AM

Action Rating: 3 out of 5

Saturday, May 23, 2026

Weather Forecast

Partly Cloudy
61.2°F
45.4°F
52.8°F
47%
0 in
0%
0%
8.1 mph
3.8


Air Quality

AQI: 1 - Good
PM2.5: 10.29 μg/m3
PM10: 12.36 μg/m3
Carbon Monoxide: 176.49 μg/m3
Nitrogen Dioxide: 13.2 μg/m3
Sulphur Dioxide: 1.81 μg/m3
Ozone: 65.32 μg/m3

Astronomical

Sunrise: 5:18 AM
Sun Transit: 12:43 AM
Sunset: 8:10 PM
Daylight: 14 hrs 52 mins
Moonrise: 12:36 AM
Moon Transit: 7:22 PM
Moonset: 1:34 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

9:00 AM - 11:30 AM
6:52 PM - 9:22 PM

Minor Periods

12:06 AM - 1:36 PM
1:04 AM - 2:34 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Moderate rain
48.4°F
46.2°F
47.5°F
87%
0.33 in
88%
0%
10.1 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 10.98 μg/m3
PM10: 14.75 μg/m3
Carbon Monoxide: 137.22 μg/m3
Nitrogen Dioxide: 8.83 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 66.08 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 12:44 AM
Sunset: 8:11 PM
Daylight: 14 hrs 54 mins
Moonrise: 1:44 PM
Moon Transit: 8:06 PM
Moonset: 1:57 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

9:44 AM - 12:14 AM
7:36 PM - 10:06 PM

Minor Periods

1:14 PM - 2:44 PM
1:27 AM - 2:57 AM

Action Rating: 2 out of 5

Monday, May 25, 2026

Weather Forecast

Patchy rain nearby
63.6°F
47.8°F
52.2°F
94%
0.19 in
86%
0%
8.7 mph
4.7


Air Quality

AQI: 1 - Good
PM2.5: 9.67 μg/m3
PM10: 13.52 μg/m3
Carbon Monoxide: 145.87 μg/m3
Nitrogen Dioxide: 9.83 μg/m3
Sulphur Dioxide: 1.83 μg/m3
Ozone: 57.69 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 12:44 AM
Sunset: 8:12 PM
Daylight: 14 hrs 55 mins
Moonrise: 2:50 PM
Moon Transit: 8:48 PM
Moonset: 2:17 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

10:27 AM - 12:57 AM
8:18 PM - 10:48 PM

Minor Periods

2:20 PM - 3:50 PM
1:47 AM - 3:17 AM

Action Rating: 3 out of 5

Tuesday, May 26, 2026

Weather Forecast

Sunny
75.4°F
51.9°F
61.3°F
79%
0 in
0%
0%
7.6 mph
1.3


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 12:44 AM
Sunset: 8:13 PM
Daylight: 14 hrs 57 mins
Moonrise: 3:54 PM
Moon Transit: 9:29 PM
Moonset: 2:36 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

11:08 AM - 1:38 PM
8:59 PM - 11:29 PM

Minor Periods

3:24 PM - 4:54 PM
2:06 AM - 3:36 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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