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

Current Water Temperature

70.9°F

Measurement Time: Sunday, June 28, 2026, 5:45 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

59.9°F
Patchy rain nearby
Patchy rain nearby
59.9°F
63.5°F
99%
ENE 2.2 mph
2.8 mph
63.5°F
59.5°F
0 in
0%
1 mi
1015 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 75°F
L: 56°F
Sunny
Mon
H: 81°F
L: 57°F
Partly Cloudy
Tue
H: 84°F
L: 56°F
Fog
Wed
H: 74°F
L: 57°F
Fog
Thu
H: 91°F
L: 59°F

Air Quality

AQI: 1 - Good
PM2.5: 6.4 μg/m3
PM10: 6.7 μg/m3
Carbon Monoxide: 155 μg/m3
Nitrogen Dioxide: 2 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 63 μg/m3

Astronomical

Sunrise: 4:44 AM
Sun Transit: 12:32 AM
Sunset: 8:21 PM
Daylight: 15 hrs 37 mins
Moonrise: 7:55 PM
Moon Transit: 11:52 PM
Moonset: 3:01 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

2:04 PM - 4:34 PM
12:00 AM - 12:00 AM

Minor Periods

7:25 PM - 8:55 PM
2:31 AM - 4:01 AM

Action Rating: 2 out of 5

Sunday, June 28, 2026

Weather Forecast

Sunny
75.4°F
55.6°F
66.1°F
83%
0 in
16%
0%
3.6 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 8.48 μg/m3
PM10: 8.98 μg/m3
Carbon Monoxide: 120.54 μg/m3
Nitrogen Dioxide: 1.27 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 71 μg/m3

Astronomical

Sunrise: 4:44 AM
Sun Transit: 12:32 AM
Sunset: 8:21 PM
Daylight: 15 hrs 37 mins
Moonrise: 7:55 PM
Moon Transit: 11:52 PM
Moonset: 3:01 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

2:04 PM - 4:34 PM
12:00 AM - 12:00 AM

Minor Periods

7:25 PM - 8:55 PM
2:31 AM - 4:01 AM

Action Rating: 2 out of 5

Monday, June 29, 2026

Weather Forecast

Sunny
80.9°F
56.5°F
67.5°F
73%
0 in
7%
0%
5.8 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 6.48 μg/m3
PM10: 6.73 μg/m3
Carbon Monoxide: 105.75 μg/m3
Nitrogen Dioxide: 1.21 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 66.67 μg/m3

Astronomical

Sunrise: 4:45 AM
Sun Transit: 12:32 AM
Sunset: 8:21 PM
Daylight: 15 hrs 36 mins
Moonrise: 8:41 PM
Moon Transit: 12:00 AM
Moonset: 3:51 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:56 PM - 5:26 PM

Minor Periods

8:11 PM - 9:41 PM
3:21 AM - 4:51 AM

Action Rating: 5 out of 5

Tuesday, June 30, 2026

Weather Forecast

Partly Cloudy
83.6°F
56.3°F
67°F
76%
0.17 in
67%
0%
8.3 mph
6.3


Air Quality

AQI: 1 - Good
PM2.5: 8 μg/m3
PM10: 8.7 μg/m3
Carbon Monoxide: 116.33 μg/m3
Nitrogen Dioxide: 1.13 μg/m3
Sulphur Dioxide: 0.87 μg/m3
Ozone: 81.13 μg/m3

Astronomical

Sunrise: 4:45 AM
Sun Transit: 12:32 AM
Sunset: 8:21 PM
Daylight: 15 hrs 35 mins
Moonrise: 9:18 PM
Moon Transit: 12:43 AM
Moonset: 4:50 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

12:13 AM - 2:43 AM
3:46 PM - 6:16 PM

Minor Periods

8:48 PM - 10:18 PM
4:20 AM - 5:50 AM

Action Rating: 5 out of 5

Wednesday, July 1, 2026

Weather Forecast

Fog
73.9°F
57.3°F
63.6°F
88%
0.1 in
76%
0%
6.9 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 10.34 μg/m3
PM10: 13.38 μg/m3
Carbon Monoxide: 127.99 μg/m3
Nitrogen Dioxide: 1.05 μg/m3
Sulphur Dioxide: 0.77 μg/m3
Ozone: 84.79 μg/m3

Astronomical

Sunrise: 4:46 AM
Sun Transit: 12:33 AM
Sunset: 8:21 PM
Daylight: 15 hrs 35 mins
Moonrise: 9:48 PM
Moon Transit: 1:33 AM
Moonset: 5:55 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:03 AM - 3:33 AM
4:35 PM - 7:05 PM

Minor Periods

9:18 PM - 10:48 PM
5:25 AM - 6:55 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Fog
91.3°F
58.5°F
70.7°F
84%
0.14 in
76%
0%
8.5 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 6.05 μg/m3
PM10: 6.64 μg/m3
Carbon Monoxide: 193 μg/m3
Nitrogen Dioxide: 1.21 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 84.95 μg/m3

Astronomical

Sunrise: 4:47 AM
Sun Transit: 12:33 AM
Sunset: 8:20 PM
Daylight: 15 hrs 34 mins
Moonrise: 10:13 PM
Moon Transit: 2:21 AM
Moonset: 7:02 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

1:51 AM - 4:21 AM
5:21 PM - 7:51 PM

Minor Periods

9:43 PM - 11:13 PM
6:32 AM - 8:02 AM

Action Rating: 4 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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