Water Temperature of the Stillwater River in Sterling, MA

Current Water Temperature

46.4°F 8.0°C
Frigid Dangerously Cold
46.4°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Severe hypothermia and cold water shock risk. Unprotected swimming causes rapid loss of dexterity in under 5 minutes.

Measurement Time: Thursday, November 12, 2026, 3:30 PM EST

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

40.1°F
Moderate Drizzle
Conditions: Moderate Drizzle
Humidity: 96%
Feels Like: 32.4°F
Wind: NNE 12.1 mph
Wind Gusts: 27.3 mph
Pressure: 29.57 in
Precipitation: 0.01 in
Cloud Cover: 100%
Visibility: 1 mi
UV Index: 0

Five-Day Weather Forecast

Moderate Rain
Thu
H: 44°F
L: 40°F
Slight Rain
Fri
H: 41°F
L: 34°F
Overcast
Sat
H: 43°F
L: 33°F
Overcast
Sun
H: 43°F
L: 32°F
Mainly Sunny
Mon
H: 48°F
L: 32°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
5.4 μg/m³
Good
PM10
7 μg/m³
Good
Ozone (O3)
58 μg/m³
Photochemical
NO2
12.9 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
154 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 53m daylight
Sunrise 6:35 AM
Solar Noon 11:31 AM
Sunset 4:28 PM
Moon
Waxing Crescent • 6%
Moonrise 10:04 AM
Transit 2:16 PM
Moonset 6:31 PM

Best Times for Fishing or Hunting

Major Periods

1:21 AM - 3:51 AM
1:46 PM - 4:16 PM

Minor Periods

9:34 AM - 11:04 AM
6:01 PM - 7:31 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Moderate Rain
Average Temperature: 41.9°F
Average Humidity: 84%
Chance of Rain: 86%
Wind: 12.1 mph
UV Index: 1.4

Air Quality

EPA Index 2 • Moderate
PM2.5
8.1 μg/m³
Good
PM10
9.4 μg/m³
Good
Ozone (O3)
42.7 μg/m³
Photochemical
NO2
24.1 μg/m³
Nitrogen Dioxide
SO2
0.9 μg/m³
Sulfur Dioxide
CO
220 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 53m daylight
Sunrise 6:35 AM
Solar Noon 11:31 AM
Sunset 4:28 PM
Moon
Waxing Crescent • 6%
Moonrise 10:04 AM
Transit 2:16 PM
Moonset 6:31 PM

Best Times for Fishing or Hunting

Major Periods

1:21 AM - 3:51 AM
1:46 PM - 4:16 PM

Minor Periods

9:34 AM - 11:04 AM
6:01 PM - 7:31 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Slight Rain
Average Temperature: 37.9°F
Average Humidity: 86%
Chance of Rain: 83%
Wind: 11.9 mph
UV Index: 2.7

Air Quality

EPA Index 1 • Good
PM2.5
2.7 μg/m³
Good
PM10
2.9 μg/m³
Good
Ozone (O3)
57.3 μg/m³
Photochemical
NO2
7.6 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
146.7 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 51m daylight
Sunrise 6:36 AM
Solar Noon 11:31 AM
Sunset 4:27 PM
Moon
Waxing Crescent • 13%
Moonrise 10:49 AM
Transit 3:07 PM
Moonset 7:29 PM

Best Times for Fishing or Hunting

Major Periods

2:12 AM - 4:42 AM
2:37 PM - 5:07 PM

Minor Periods

10:19 AM - 11:49 AM
6:59 PM - 8:29 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 36.1°F
Average Humidity: 78%
Chance of Rain: 2%
Wind: 8.5 mph
UV Index: 2.8

Air Quality

EPA Index 1 • Good
PM2.5
2.6 μg/m³
Good
PM10
2.6 μg/m³
Good
Ozone (O3)
48.5 μg/m³
Photochemical
NO2
7.3 μg/m³
Nitrogen Dioxide
SO2
0.8 μg/m³
Sulfur Dioxide
CO
131.7 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 49m daylight
Sunrise 6:37 AM
Solar Noon 11:31 AM
Sunset 4:26 PM
Moon
Waxing Crescent • 21%
Moonrise 11:26 AM
Transit 3:56 PM
Moonset 8:32 PM

Best Times for Fishing or Hunting

Major Periods

3:02 AM - 5:32 AM
3:26 PM - 5:56 PM

Minor Periods

10:56 AM - 12:26 PM
8:02 PM - 9:32 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 36.3°F
Average Humidity: 76%
Chance of Rain: 0%
Wind: 11.1 mph
UV Index: 2.7

Air Quality

EPA Index 1 • Good
PM2.5
1.1 μg/m³
Good
PM10
1.2 μg/m³
Good
Ozone (O3)
55.3 μg/m³
Photochemical
NO2
4.7 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
124.3 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 47m daylight
Sunrise 6:38 AM
Solar Noon 11:31 AM
Sunset 4:25 PM
Moon
Waxing Crescent • 31%
Moonrise 11:57 AM
Transit 4:42 PM
Moonset 9:35 PM

Best Times for Fishing or Hunting

Major Periods

3:49 AM - 6:19 AM
4:12 PM - 6:42 PM

Minor Periods

11:27 AM - 12:57 PM
9:05 PM - 10:35 PM
Action Rating:
Very Good 4/5
Monday, November 16, 2026

Weather Forecast

Conditions: Mainly Sunny
Average Temperature: 37.6°F
Average Humidity: 74%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 2.9

Air Quality

EPA Index 1 • Good
PM2.5
2.1 μg/m³
Good
PM10
2.1 μg/m³
Good
Ozone (O3)
57.7 μg/m³
Photochemical
NO2
7 μg/m³
Nitrogen Dioxide
SO2
0.5 μg/m³
Sulfur Dioxide
CO
140.8 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 45m daylight
Sunrise 6:40 AM
Solar Noon 11:31 AM
Sunset 4:24 PM
Moon
First Quarter • 42%
Moonrise 12:24 PM
Transit 5:27 PM
Moonset 10:40 PM

Best Times for Fishing or Hunting

Major Periods

4:35 AM - 7:05 AM
4:57 PM - 7:27 PM

Minor Periods

11:54 AM - 1:24 PM
10:10 PM - 11:40 PM
Action Rating:
Good Action 3/5
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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