Water Temperature of the Stillwater River in Sterling, MA

Current Water Temperature

72.1°F

Measurement Time: Wednesday, July 16, 2025, 3:30 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 / 129 meters

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 (14.0 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 (27.0 mi)
Cambridge Reservoir Tributary 2, Lexington, MA (27.1 mi)

Weather for Sterling, Massachusetts

Current Weather

75°F
Fog
Conditions: Fog
Humidity: 84%
Feels Like: 79.9°F
Wind: WSW 2.5 mph
Wind Gusts: 4.2 mph
Pressure: 30.08 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0.5

Five Day Weather Forecast

Cloudy
Wed
H: 90°F
L: 70°F
Moderate rain
Thu
H: 84°F
L: 74°F
Partly Cloudy
Fri
H: 78°F
L: 68°F
Sunny
Sat
H: 81°F
L: 55°F
Heavy rain
Sun
H: 68°F
L: 61°F

Air Quality

AQI: 1 - Good
PM2.5: 28.86 μg/m3
PM10: 29.23 μg/m3
Carbon Monoxide: 490.25 μg/m3
Nitrogen Dioxide: 4.44 μg/m3
Sulphur Dioxide: 2.04 μg/m3
Ozone: 146 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 12:53 AM
Sunset: 8:22 PM
Daylight: 14 hrs 57 mins
Moonrise: 12:05 AM
Moon Transit: 1:15 AM
Moonset: 11:43 AM
Moon Phase: Waning Gibbous
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 AM
12:45 AM - 3:15 AM

Minor Periods

11:13 AM - 12:43 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Heat Advisory issued July 15 at 1:43PM EDT until July 17 at 7:00PM EDT by NWS Boston/Norton MA

Effective: Tue July 15, 2025, 1:43 PM
Expires: Wed July 16, 2025, 8:00 AM

* WHAT...Heat index values up to 100. * WHERE...Much of Southern New England. * WHEN...Until 7 PM EDT Thursday. * 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 July 16 at 2:17AM EDT until July 17 at 7:00PM EDT by NWS Boston/Norton MA

Effective: Wed July 16, 2025, 2:17 AM
Expires: Wed July 16, 2025, 5:00 PM

* WHAT...Heat index values up to 100 degrees. * WHERE...Much of southern New England. * WHEN...Until 7 PM EDT Thursday. * 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 July 15 at 1:43PM EDT until July 17 at 7:00PM EDT by NWS Boston/Norton MA

Effective: Tue July 15, 2025, 1:43 PM
Expires: Wed July 16, 2025, 8:00 AM

* WHAT...Heat index values up to 100. * WHERE...Much of Southern New England. * WHEN...Until 7 PM EDT Thursday. * 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 July 16 at 2:17AM EDT until July 17 at 7:00PM EDT by NWS Boston/Norton MA

Effective: Wed July 16, 2025, 2:17 AM
Expires: Wed July 16, 2025, 5:00 PM

* WHAT...Heat index values up to 100 degrees. * WHERE...Much of southern New England. * WHEN...Until 7 PM EDT Thursday. * 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 July 15 at 1:43PM EDT until July 17 at 7:00PM EDT by NWS Boston/Norton MA

Effective: Tue July 15, 2025, 1:43 PM
Expires: Wed July 16, 2025, 8:00 AM

* WHAT...Heat index values up to 100. * WHERE...Much of Southern New England. * WHEN...Until 7 PM EDT Thursday. * 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.
Wednesday, July 16, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 78.6°F
Average Humidity: 86%
Chance of Rain: 0%
Wind: 8.9 mph
UV Index: 2.2

Air Quality

AQI: 2 - Moderate
PM2.5: 23.31 μg/m3
PM10: 23.84 μg/m3
Carbon Monoxide: 483.59 μg/m3
Nitrogen Dioxide: 9.52 μg/m3
Sulphur Dioxide: 1.96 μg/m3
Ozone: 116.2 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 12:53 AM
Sunset: 8:22 PM
Daylight: 14 hrs 57 mins
Moonrise: 12:05 AM
Moon Transit: 1:15 AM
Moonset: 11:43 AM
Moon Phase: Waning Gibbous
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 AM
12:45 AM - 3:15 AM

Minor Periods

11:13 AM - 12:43 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 17, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 77.6°F
Average Humidity: 89%
Chance of Rain: 79%
Wind: 11.9 mph
UV Index: 1.5

Air Quality

AQI: 2 - Moderate
PM2.5: 22.81 μg/m3
PM10: 23.15 μg/m3
Carbon Monoxide: 392.27 μg/m3
Nitrogen Dioxide: 8.62 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 127.08 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 12:53 AM
Sunset: 8:21 PM
Daylight: 14 hrs 56 mins
Moonrise: 12:26 AM
Moon Transit: 6:04 AM
Moonset: 12:57 AM
Moon Phase: Last Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

5:34 AM - 8:04 AM
8:30 PM - 11:00 PM

Minor Periods

12:27 AM - 1:57 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Friday, July 18, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 73.9°F
Average Humidity: 74%
Chance of Rain: 0%
Wind: 10.7 mph
UV Index: 2.5

Air Quality

AQI: 1 - Good
PM2.5: 10.59 μg/m3
PM10: 10.63 μg/m3
Carbon Monoxide: 371.18 μg/m3
Nitrogen Dioxide: 6.74 μg/m3
Sulphur Dioxide: 1.76 μg/m3
Ozone: 95.64 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 12:53 AM
Sunset: 8:20 PM
Daylight: 14 hrs 54 mins
Moonrise: 12:50 AM
Moon Transit: 6:54 AM
Moonset: 2:14 PM
Moon Phase: Last Quarter
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

6:24 AM - 8:54 AM
9:21 PM - 11:51 PM

Minor Periods

1:44 PM - 3:14 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, July 19, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 69.1°F
Average Humidity: 56%
Chance of Rain: 0%
Wind: 7.4 mph
UV Index: 2.4

Air Quality

AQI: 1 - Good
PM2.5: 6.9 μg/m3
PM10: 7 μg/m3
Carbon Monoxide: 308.8 μg/m3
Nitrogen Dioxide: 5.93 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 92.2 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 12:53 AM
Sunset: 8:19 PM
Daylight: 14 hrs 52 mins
Moonrise: 12:18 AM
Moon Transit: 7:47 AM
Moonset: 3:33 PM
Moon Phase: Last Quarter
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
12:00 AM - 12:00 AM

Minor Periods

3:03 PM - 4:33 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, July 20, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 64.4°F
Average Humidity: 96%
Chance of Rain: 83%
Wind: 6.3 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 10.22 μg/m3
PM10: 10.42 μg/m3
Carbon Monoxide: 413.12 μg/m3
Nitrogen Dioxide: 13.86 μg/m3
Sulphur Dioxide: 3.87 μg/m3
Ozone: 89.15 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 12:53 AM
Sunset: 8:19 PM
Daylight: 14 hrs 51 mins
Moonrise: 12:52 AM
Moon Transit: 8:45 AM
Moonset: 4:52 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

8:15 AM - 10:45 AM
12:00 AM - 12:00 AM

Minor Periods

4:22 PM - 5:52 PM
12:22 AM - 1:52 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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