Water Temperature of the St. Croix River in Calais, ME

Current Water Temperature

41.4°F

Measurement Time: Friday, November 14, 2025, 12:45 PM EST

Temperature Locations

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Local Points of Interest

St. Stephen, NB

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St. Croix River

Station Name: St. Croix River at Milltown, Maine
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 62 feet / 19 meters

Nearest Address:
531 North St
Calais, ME 04619
Washington County

GPS Coordinates: 45.17, -67.2966667

Nearby Water Temperatures

Lewy Lake, Princeton, ME (14.2 mi)
Grand Lake Stream, Grand Lake Stream, ME (23.5 mi)
Gulf of Maine, Eastport, ME (23.9 mi)
Narraguagus River, Cherryfield, ME (49.8 mi)
Penobscot River, Eddington, ME (72.4 mi)
Meduxnekeag River, Houlton, ME (74.0 mi)
Piscataquis River, Guilford, ME (98.3 mi)
Ducktrap River, Lincolnville, ME (104.2 mi)
Sheepscot River, Whitefield, ME (130.4 mi)
Gulf of Maine, Monhegan, ME (142.9 mi)
Allagash River, Allagash, ME (156.6 mi)
St. John River, Saint Francis, ME (157.1 mi)
Gulf of Maine, Portland, ME (179.1 mi)
Gulf of Maine, Cape Elizabeth, ME (180.7 mi)
Wild River, Gilead, ME (188.5 mi)

Weather for Calais, Maine

Current Weather

31.6°F
Clear
Conditions: Clear
Humidity: 63%
Feels Like: 26.9°F
Wind: NW 4.7 mph
Wind Gusts: 9.9 mph
Pressure: 29.81 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Fri
H: 39°F
L: 32°F
Sunny
Sat
H: 41°F
L: 27°F
Heavy rain
Sun
H: 41°F
L: 31°F
Moderate rain
Mon
H: 42°F
L: 32°F
Partly Cloudy
Tue
H: 39°F
L: 27°F

Air Quality

AQI: 1 - Good
PM2.5: 1.24 μg/m3
PM10: 1.34 μg/m3
Carbon Monoxide: 140.84 μg/m3
Nitrogen Dioxide: 1.74 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 11:13 AM
Sunset: 4:01 PM
Daylight: 9 hrs 34 mins
Moonrise: 12:40 AM
Moon Transit: 7:13 AM
Moonset: 1:33 PM
Moon Phase: Last Quarter
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

6:43 AM - 9:13 AM
12:00 AM - 12:00 AM

Minor Periods

1:03 PM - 2:33 PM
12:10 AM - 1:40 AM

Action Rating: 3 out of 5

Friday, November 14, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 34°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 10.7 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 1.81 μg/m3
PM10: 1.92 μg/m3
Carbon Monoxide: 149.48 μg/m3
Nitrogen Dioxide: 2.65 μg/m3
Sulphur Dioxide: 1.72 μg/m3
Ozone: 67.88 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 11:13 AM
Sunset: 4:01 PM
Daylight: 9 hrs 34 mins
Moonrise: 12:40 AM
Moon Transit: 7:13 AM
Moonset: 1:33 PM
Moon Phase: Last Quarter
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

6:43 AM - 9:13 AM
12:00 AM - 12:00 AM

Minor Periods

1:03 PM - 2:33 PM
12:10 AM - 1:40 AM

Action Rating: 3 out of 5

Saturday, November 15, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 33.6°F
Average Humidity: 59%
Chance of Rain: 0%
Wind: 11.4 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 1.33 μg/m3
PM10: 1.39 μg/m3
Carbon Monoxide: 144.6 μg/m3
Nitrogen Dioxide: 2 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 75.56 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 11:13 AM
Sunset: 3:59 PM
Daylight: 9 hrs 31 mins
Moonrise: 1:46 AM
Moon Transit: 7:53 AM
Moonset: 1:49 PM
Moon Phase: Waning Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

7:23 AM - 9:53 AM
12:00 AM - 12:00 AM

Minor Periods

1:19 PM - 2:49 PM
1:16 AM - 2:46 AM

Action Rating: 2 out of 5

Sunday, November 16, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 36.2°F
Average Humidity: 89%
Chance of Rain: 84%
Wind: 11.6 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 2.98 μg/m3
PM10: 3.76 μg/m3
Carbon Monoxide: 152.36 μg/m3
Nitrogen Dioxide: 3.34 μg/m3
Sulphur Dioxide: 1.59 μg/m3
Ozone: 69.32 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 11:14 AM
Sunset: 3:59 PM
Daylight: 9 hrs 29 mins
Moonrise: 2:51 AM
Moon Transit: 8:33 AM
Moonset: 2:05 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
12:00 AM - 12:00 AM

Minor Periods

1:35 PM - 3:05 PM
2:21 AM - 3:51 AM

Action Rating: 2 out of 5

Monday, November 17, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 35.4°F
Average Humidity: 83%
Chance of Rain: 83%
Wind: 13.4 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 1.28 μg/m3
PM10: 1.36 μg/m3
Carbon Monoxide: 146.28 μg/m3
Nitrogen Dioxide: 2.4 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 77.68 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 11:14 AM
Sunset: 3:58 PM
Daylight: 9 hrs 27 mins
Moonrise: 3:56 AM
Moon Transit: 9:14 AM
Moonset: 2:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
12:00 AM - 12:00 AM

Minor Periods

1:53 PM - 3:23 PM
3:26 AM - 4:56 AM

Action Rating: 2 out of 5

Tuesday, November 18, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 31.8°F
Average Humidity: 80%
Chance of Rain: 0%
Wind: 12.3 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 1.34 μg/m3
PM10: 1.34 μg/m3
Carbon Monoxide: 139 μg/m3
Nitrogen Dioxide: 1.97 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 72.54 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 11:14 AM
Sunset: 3:57 PM
Daylight: 9 hrs 25 mins
Moonrise: 5:01 AM
Moon Transit: 9:56 AM
Moonset: 2:43 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

12:12 AM - 2:42 AM
9:26 AM - 11:56 AM

Minor Periods

2:13 PM - 3:43 PM
4:31 AM - 6:01 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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