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

Current Water Temperature

72.7°F

Measurement Time: Monday, August 31, 2026, 6:45 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

67°F

Conditions: Sunny

Humidity: 59%

Wind: NW 6 mph

Dew Point: 52°F

Weather Forecast

Today
75°F - Sunny

Tonight
52°F - Mostly Clear then Patchy Fog

Tuesday
76°F - Patchy Fog then Sunny

Tuesday Night
50°F - Partly Cloudy

Wednesday
71°F - Mostly Sunny

Wednesday Night
50°F - Light Rain Likely

Thursday
65°F - Light Rain

Thursday Night
52°F - Light Rain then Rain Showers Likely

Friday
69°F - Chance Rain Showers

Friday Night
50°F - Chance Rain Showers

Saturday
70°F - Slight Chance Rain Showers

Saturday Night
49°F - Slight Chance Rain Showers then Mostly Cloudy

Sunday
71°F - Mostly Sunny

Sunday Night
50°F - Partly Cloudy

Astronomical

Sunrise: 5:50 AM
Sun Transit: 12:29 AM
Sunset: 7:08 PM
Daylight: 13 hrs 18 mins

Moonrise: 8:20 PM
Moon Transit: 2:43 AM
Moonset: 9:42 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
5:44 PM - 8:14 PM

Minor Periods

7:50 PM - 9:20 PM
9:12 AM - 10:42 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: 5:50 AM
Sun Transit: 12:29 AM
Sunset: 7:08 PM
Daylight: 13 hrs 18 mins

Moonrise: 8:20 PM
Moon Transit: 2:43 AM
Moonset: 9:42 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
5:44 PM - 8:14 PM

Minor Periods

7:50 PM - 9:20 PM
9:12 AM - 10:42 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: 5:50 AM
Sun Transit: 12:29 AM
Sunset: 7:08 PM
Daylight: 13 hrs 18 mins

Moonrise: 8:20 PM
Moon Transit: 2:43 AM
Moonset: 9:42 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
5:44 PM - 8:14 PM

Minor Periods

7:50 PM - 9:20 PM
9:12 AM - 10:42 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: 5:51 AM
Sun Transit: 12:29 AM
Sunset: 7:06 PM
Daylight: 13 hrs 15 mins

Moonrise: 8:45 PM
Moon Transit: 3:31 AM
Moonset: 10:59 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:01 AM - 5:31 AM
6:34 PM - 9:04 PM

Minor Periods

8:15 PM - 9:45 PM
10:29 AM - 11:59 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: 5:51 AM
Sun Transit: 12:29 AM
Sunset: 7:06 PM
Daylight: 13 hrs 15 mins

Moonrise: 8:45 PM
Moon Transit: 3:31 AM
Moonset: 10:59 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:01 AM - 5:31 AM
6:34 PM - 9:04 PM

Minor Periods

8:15 PM - 9:45 PM
10:29 AM - 11:59 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: 5:52 AM
Sun Transit: 12:28 AM
Sunset: 7:04 PM
Daylight: 13 hrs 12 mins

Moonrise: 9:16 PM
Moon Transit: 4:22 AM
Moonset: 12:17 AM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

3:52 AM - 6:22 AM
7:30 PM - 10:00 PM

Minor Periods

8:46 PM - 10:16 PM
11:47 AM - 1:17 PM

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: 5:52 AM
Sun Transit: 12:28 AM
Sunset: 7:04 PM
Daylight: 13 hrs 12 mins

Moonrise: 9:16 PM
Moon Transit: 4:22 AM
Moonset: 12:17 AM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

3:52 AM - 6:22 AM
7:30 PM - 10:00 PM

Minor Periods

8:46 PM - 10:16 PM
11:47 AM - 1:17 PM

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: 5:53 AM
Sun Transit: 12:28 AM
Sunset: 7:03 PM
Daylight: 13 hrs 9 mins

Moonrise: 9:57 PM
Moon Transit: 5:19 AM
Moonset: 1:35 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

4:49 AM - 7:19 AM
8:28 PM - 10:58 PM

Minor Periods

9:27 PM - 10:57 PM
1:05 PM - 2:35 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: 5:53 AM
Sun Transit: 12:28 AM
Sunset: 7:03 PM
Daylight: 13 hrs 9 mins

Moonrise: 9:57 PM
Moon Transit: 5:19 AM
Moonset: 1:35 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

4:49 AM - 7:19 AM
8:28 PM - 10:58 PM

Minor Periods

9:27 PM - 10:57 PM
1:05 PM - 2:35 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: 5:55 AM
Sun Transit: 12:28 AM
Sunset: 7:01 PM
Daylight: 13 hrs 6 mins

Moonrise: 10:52 PM
Moon Transit: 6:19 AM
Moonset: 2:49 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

5:49 AM - 8:19 AM
9:30 PM - 12:00 PM

Minor Periods

10:22 PM - 11:52 PM
2:19 PM - 3:49 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: 5:55 AM
Sun Transit: 12:28 AM
Sunset: 7:01 PM
Daylight: 13 hrs 6 mins

Moonrise: 10:52 PM
Moon Transit: 6:19 AM
Moonset: 2:49 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

5:49 AM - 8:19 AM
9:30 PM - 12:00 PM

Minor Periods

10:22 PM - 11:52 PM
2:19 PM - 3:49 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: 5:56 AM
Sun Transit: 12:27 AM
Sunset: 6:59 PM
Daylight: 13 hrs 3 mins

Moonrise: 12:00 PM
Moon Transit: 7:22 AM
Moonset: 3:51 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

6:52 AM - 9:22 AM
12:00 AM - 12:00 AM

Minor Periods

12:00 AM - 12:00 AM
3:21 PM - 4:51 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: 5:56 AM
Sun Transit: 12:27 AM
Sunset: 6:59 PM
Daylight: 13 hrs 3 mins

Moonrise: 12:00 PM
Moon Transit: 7:22 AM
Moonset: 3:51 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

6:52 AM - 9:22 AM
12:00 AM - 12:00 AM

Minor Periods

12:00 AM - 12:00 AM
3:21 PM - 4:51 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: 5:57 AM
Sun Transit: 12:27 AM
Sunset: 6:57 PM
Daylight: 13 hrs mins

Moonrise: 1:00 AM
Moon Transit: 8:24 AM
Moonset: 4:40 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

7:54 AM - 10:24 AM
12:00 AM - 12:00 AM

Minor Periods

4:10 PM - 5:40 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: 5:57 AM
Sun Transit: 12:27 AM
Sunset: 6:57 PM
Daylight: 13 hrs mins

Moonrise: 1:00 AM
Moon Transit: 8:24 AM
Moonset: 4:40 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

7:54 AM - 10:24 AM
12:00 AM - 12:00 AM

Minor Periods

4:10 PM - 5:40 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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