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

Current Water Temperature

66.7°F

Measurement Time: Monday, September 14, 2026, 11:45 AM EDT

Temperature Locations

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Local Points of Interest

St. Stephen, NB

St. Croix River

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

Elevation Above Sea Level: 62 feet

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 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

65°F

Conditions: Sunny

Humidity: 56%

Wind: NW 12 mph

Dew Point: 49°F

Weather Forecast

This Afternoon
71°F - Sunny

Tonight
41°F - Clear then Patchy Fog

Tuesday
68°F - Patchy Fog then Sunny

Tuesday Night
43°F - Partly Cloudy

Wednesday
72°F - Mostly Sunny

Wednesday Night
50°F - Patchy Fog

Thursday
71°F - Patchy Fog then Partly Sunny

Thursday Night
51°F - Chance Rain Showers

Friday
70°F - Chance Rain Showers then Mostly Sunny

Friday Night
43°F - Mostly Clear

Saturday
63°F - Mostly Sunny

Saturday Night
43°F - Chance Rain Showers

Sunday
61°F - Chance Rain Showers

Sunday Night
42°F - Chance Rain Showers then Mostly Cloudy

Astronomical

Sunrise: 6:07 AM
Sun Transit: 12:24 AM
Sunset: 6:42 PM
Daylight: 12 hrs 35 mins

Moonrise: 10:09 AM
Moon Transit: 3:04 PM
Moonset: 7:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

5:18 AM - 7:48 AM
2:34 PM - 5:04 PM

Minor Periods

7:20 PM - 8:50 PM
9:39 AM - 11:09 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:07 AM
Sun Transit: 12:24 AM
Sunset: 6:42 PM
Daylight: 12 hrs 35 mins

Moonrise: 10:09 AM
Moon Transit: 3:04 PM
Moonset: 7:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

5:18 AM - 7:48 AM
2:34 PM - 5:04 PM

Minor Periods

7:20 PM - 8:50 PM
9:39 AM - 11:09 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:07 AM
Sun Transit: 12:24 AM
Sunset: 6:42 PM
Daylight: 12 hrs 35 mins

Moonrise: 10:09 AM
Moon Transit: 3:04 PM
Moonset: 7:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

5:18 AM - 7:48 AM
2:34 PM - 5:04 PM

Minor Periods

7:20 PM - 8:50 PM
9:39 AM - 11:09 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:08 AM
Sun Transit: 12:24 AM
Sunset: 6:40 PM
Daylight: 12 hrs 32 mins

Moonrise: 11:18 AM
Moon Transit: 3:51 PM
Moonset: 8:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

6:05 AM - 8:35 AM
3:21 PM - 5:51 PM

Minor Periods

7:48 PM - 9:18 PM
10:48 AM - 12:18 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:08 AM
Sun Transit: 12:24 AM
Sunset: 6:40 PM
Daylight: 12 hrs 32 mins

Moonrise: 11:18 AM
Moon Transit: 3:51 PM
Moonset: 8:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

6:05 AM - 8:35 AM
3:21 PM - 5:51 PM

Minor Periods

7:48 PM - 9:18 PM
10:48 AM - 12:18 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:09 AM
Sun Transit: 12:23 AM
Sunset: 6:38 PM
Daylight: 12 hrs 29 mins

Moonrise: 12:27 AM
Moon Transit: 4:40 PM
Moonset: 8:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

6:53 AM - 9:23 AM
4:10 PM - 6:40 PM

Minor Periods

8:20 PM - 9:50 PM
11:57 AM - 1:27 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:09 AM
Sun Transit: 12:23 AM
Sunset: 6:38 PM
Daylight: 12 hrs 29 mins

Moonrise: 12:27 AM
Moon Transit: 4:40 PM
Moonset: 8:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

6:53 AM - 9:23 AM
4:10 PM - 6:40 PM

Minor Periods

8:20 PM - 9:50 PM
11:57 AM - 1:27 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:10 AM
Sun Transit: 12:23 AM
Sunset: 6:36 PM
Daylight: 12 hrs 26 mins

Moonrise: 1:29 PM
Moon Transit: 5:31 PM
Moonset: 9:31 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

7:44 AM - 10:14 AM
5:01 PM - 7:31 PM

Minor Periods

9:01 PM - 10:31 PM
12:59 AM - 2:29 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:10 AM
Sun Transit: 12:23 AM
Sunset: 6:36 PM
Daylight: 12 hrs 26 mins

Moonrise: 1:29 PM
Moon Transit: 5:31 PM
Moonset: 9:31 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

7:44 AM - 10:14 AM
5:01 PM - 7:31 PM

Minor Periods

9:01 PM - 10:31 PM
12:59 AM - 2:29 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:12 AM
Sun Transit: 12:23 AM
Sunset: 6:35 PM
Daylight: 12 hrs 23 mins

Moonrise: 2:26 PM
Moon Transit: 6:23 PM
Moonset: 10:21 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

8:35 AM - 11:05 AM
5:53 PM - 8:23 PM

Minor Periods

9:51 PM - 11:21 PM
1:56 PM - 3:26 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:12 AM
Sun Transit: 12:23 AM
Sunset: 6:35 PM
Daylight: 12 hrs 23 mins

Moonrise: 2:26 PM
Moon Transit: 6:23 PM
Moonset: 10:21 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

8:35 AM - 11:05 AM
5:53 PM - 8:23 PM

Minor Periods

9:51 PM - 11:21 PM
1:56 PM - 3:26 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:13 AM
Sun Transit: 12:22 AM
Sunset: 6:33 PM
Daylight: 12 hrs 20 mins

Moonrise: 3:13 PM
Moon Transit: 7:14 PM
Moonset: 11:19 PM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

9:26 AM - 11:56 AM
6:44 PM - 9:14 PM

Minor Periods

12:00 AM - 12:00 AM
2:43 PM - 4:13 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:13 AM
Sun Transit: 12:22 AM
Sunset: 6:33 PM
Daylight: 12 hrs 20 mins

Moonrise: 3:13 PM
Moon Transit: 7:14 PM
Moonset: 11:19 PM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

9:26 AM - 11:56 AM
6:44 PM - 9:14 PM

Minor Periods

12:00 AM - 12:00 AM
2:43 PM - 4:13 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:14 AM
Sun Transit: 12:22 AM
Sunset: 6:31 PM
Daylight: 12 hrs 17 mins

Moonrise: 3:51 PM
Moon Transit: 8:04 PM
Moonset: 12:19 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

10:17 AM - 12:47 AM
7:34 PM - 10:04 PM

Minor Periods

3:21 PM - 4:51 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:14 AM
Sun Transit: 12:22 AM
Sunset: 6:31 PM
Daylight: 12 hrs 17 mins

Moonrise: 3:51 PM
Moon Transit: 8:04 PM
Moonset: 12:19 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

10:17 AM - 12:47 AM
7:34 PM - 10:04 PM

Minor Periods

3:21 PM - 4:51 PM
12:00 AM - 12:00 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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