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

Current Water Temperature

62.4°F

Measurement Time: Monday, September 28, 2026, 12:45 PM 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

55°F

Conditions: Chance Rain Showers

Humidity: 100%

Wind: E 7 mph

Dew Point: 55°F

Weather Forecast

This Afternoon
57°F - Chance Rain Showers

Tonight
51°F - Widespread Rain Showers

Tuesday
63°F - Widespread Rain Showers

Tuesday Night
50°F - Scattered Rain Showers then Mostly Cloudy

Wednesday
68°F - Partly Sunny

Wednesday Night
51°F - Mostly Cloudy

Thursday
73°F - Mostly Sunny

Thursday Night
58°F - Mostly Cloudy

Friday
75°F - Partly Sunny

Friday Night
45°F - Slight Chance Rain Showers

Saturday
65°F - Slight Chance Rain Showers then Mostly Sunny

Saturday Night
40°F - Partly Cloudy

Sunday
64°F - Chance Rain Showers

Sunday Night
45°F - Chance Rain Showers

Astronomical

Sunrise: 6:24 AM
Sun Transit: 12:19 AM
Sunset: 6:15 PM
Daylight: 11 hrs 51 mins

Moonrise: 6:49 PM
Moon Transit: 1:25 AM
Moonset: 8:44 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

12:55 AM - 3:25 AM
4:30 PM - 7:00 PM

Minor Periods

6:19 PM - 7:49 PM
8:14 AM - 9:44 AM

Action Rating: 4 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: 6:24 AM
Sun Transit: 12:19 AM
Sunset: 6:15 PM
Daylight: 11 hrs 51 mins

Moonrise: 6:49 PM
Moon Transit: 1:25 AM
Moonset: 8:44 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

12:55 AM - 3:25 AM
4:30 PM - 7:00 PM

Minor Periods

6:19 PM - 7:49 PM
8:14 AM - 9:44 AM

Action Rating: 4 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: 6:24 AM
Sun Transit: 12:19 AM
Sunset: 6:15 PM
Daylight: 11 hrs 51 mins

Moonrise: 6:49 PM
Moon Transit: 1:25 AM
Moonset: 8:44 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

12:55 AM - 3:25 AM
4:30 PM - 7:00 PM

Minor Periods

6:19 PM - 7:49 PM
8:14 AM - 9:44 AM

Action Rating: 4 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: 6:25 AM
Sun Transit: 12:19 AM
Sunset: 6:13 PM
Daylight: 11 hrs 48 mins

Moonrise: 7:18 PM
Moon Transit: 2:17 AM
Moonset: 10:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

1:47 AM - 4:17 AM
5:23 PM - 7:53 PM

Minor Periods

6:48 PM - 8:18 PM
9:33 AM - 11:03 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: 6:25 AM
Sun Transit: 12:19 AM
Sunset: 6:13 PM
Daylight: 11 hrs 48 mins

Moonrise: 7:18 PM
Moon Transit: 2:17 AM
Moonset: 10:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

1:47 AM - 4:17 AM
5:23 PM - 7:53 PM

Minor Periods

6:48 PM - 8:18 PM
9:33 AM - 11:03 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: 6:26 AM
Sun Transit: 12:19 AM
Sunset: 6:11 PM
Daylight: 11 hrs 45 mins

Moonrise: 7:57 PM
Moon Transit: 3:13 AM
Moonset: 11:23 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

2:43 AM - 5:13 AM
6:22 PM - 8:52 PM

Minor Periods

7:27 PM - 8:57 PM
10:53 AM - 12:23 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: 6:26 AM
Sun Transit: 12:19 AM
Sunset: 6:11 PM
Daylight: 11 hrs 45 mins

Moonrise: 7:57 PM
Moon Transit: 3:13 AM
Moonset: 11:23 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

2:43 AM - 5:13 AM
6:22 PM - 8:52 PM

Minor Periods

7:27 PM - 8:57 PM
10:53 AM - 12:23 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: 6:28 AM
Sun Transit: 12:18 AM
Sunset: 6:10 PM
Daylight: 11 hrs 42 mins

Moonrise: 8:48 PM
Moon Transit: 4:13 AM
Moonset: 12:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

3:43 AM - 6:13 AM
7:24 PM - 9:54 PM

Minor Periods

8:18 PM - 9:48 PM
12:10 AM - 1:40 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: 6:28 AM
Sun Transit: 12:18 AM
Sunset: 6:10 PM
Daylight: 11 hrs 42 mins

Moonrise: 8:48 PM
Moon Transit: 4:13 AM
Moonset: 12:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

3:43 AM - 6:13 AM
7:24 PM - 9:54 PM

Minor Periods

8:18 PM - 9:48 PM
12:10 AM - 1:40 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: 6:29 AM
Sun Transit: 12:18 AM
Sunset: 6:08 PM
Daylight: 11 hrs 39 mins

Moonrise: 9:51 PM
Moon Transit: 5:16 AM
Moonset: 1:45 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

4:46 AM - 7:16 AM
8:27 PM - 10:57 PM

Minor Periods

9:21 PM - 10:51 PM
1:15 PM - 2:45 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: 6:29 AM
Sun Transit: 12:18 AM
Sunset: 6:08 PM
Daylight: 11 hrs 39 mins

Moonrise: 9:51 PM
Moon Transit: 5:16 AM
Moonset: 1:45 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

4:46 AM - 7:16 AM
8:27 PM - 10:57 PM

Minor Periods

9:21 PM - 10:51 PM
1:15 PM - 2:45 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: 6:30 AM
Sun Transit: 12:18 AM
Sunset: 6:06 PM
Daylight: 11 hrs 36 mins

Moonrise: 11:05 PM
Moon Transit: 6:18 AM
Moonset: 2:39 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

5:48 AM - 8:18 AM
9:28 PM - 11:58 PM

Minor Periods

12:00 AM - 12:00 AM
2:09 PM - 3:39 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: 6:30 AM
Sun Transit: 12:18 AM
Sunset: 6:06 PM
Daylight: 11 hrs 36 mins

Moonrise: 11:05 PM
Moon Transit: 6:18 AM
Moonset: 2:39 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

5:48 AM - 8:18 AM
9:28 PM - 11:58 PM

Minor Periods

12:00 AM - 12:00 AM
2:09 PM - 3:39 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: 6:31 AM
Sun Transit: 12:17 AM
Sunset: 6:04 PM
Daylight: 11 hrs 33 mins

Moonrise: 12:05 AM
Moon Transit: 7:18 AM
Moonset: 3:19 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

6:48 AM - 9:18 AM
12:00 AM - 12:00 AM

Minor Periods

2:49 PM - 4:19 PM
12:00 AM - 12:00 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: 6:31 AM
Sun Transit: 12:17 AM
Sunset: 6:04 PM
Daylight: 11 hrs 33 mins

Moonrise: 12:05 AM
Moon Transit: 7:18 AM
Moonset: 3:19 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

6:48 AM - 9:18 AM
12:00 AM - 12:00 AM

Minor Periods

2:49 PM - 4:19 PM
12:00 AM - 12:00 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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