Water Temperature of the St. Croix River in Calais, ME
Current Water Temperature
47.7°F
Measurement Time: Tuesday, April 14, 2026, 10:45 PM EDT
Temperature Locations
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Local Points of Interest
St. Stephen, NBSt. 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
46.6°F

Mist
42.9°F
47°F
99%
ENE 7.4 mph
10.9 mph
46.1°F
45.7°F
0 in
0%
1 mi
1009 mbar
0
Five Day Weather Forecast

Wed
H: 55°F
L: 44°F

Thu
H: 47°F
L: 41°F

Fri
H: 56°F
L: 39°F

Sat
H: 59°F
L: 38°F

Sun
H: 53°F
L: 40°F
Air Quality
PM2.5:
4.14 μg/m3
PM10:
4.54 μg/m3
Carbon Monoxide: 179.84 μg/m3
Nitrogen Dioxide: 3.64 μg/m3
Sulphur Dioxide: 2.14 μg/m3
Ozone: 80 μg/m3
Nitrogen Dioxide: 3.64 μg/m3
Sulphur Dioxide: 2.14 μg/m3
Ozone: 80 μg/m3
Astronomical
Sunrise: 5:44 AM
Sun Transit: 12:29 AM
Sunset: 7:15 PM
Daylight: 13 hrs 31 mins
Sun Transit: 12:29 AM
Sunset: 7:15 PM
Daylight: 13 hrs 31 mins
Moonrise: 4:41 AM
Moon Transit: 11:33 AM
Moonset: 5:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%
Moon Transit: 11:33 AM
Moonset: 5:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
11:03 AM - 1:33 PM11:03 AM - 1:33 PM
Minor Periods
4:49 PM - 6:19 PM4:11 AM - 5:41 AM
Action Rating: 3 out of 5
Wednesday, April 15, 2026
Weather Forecast
Moderate rain
55°F
44.4°F
49.5°F
91%
0.22 in
87%
0%
8.9 mph
0.6
Air Quality
AQI:
1 - Good
PM2.5:
3.73 μg/m3
PM10:
4.53 μg/m3
Carbon Monoxide: 181 μg/m3
Nitrogen Dioxide: 2.53 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 91.12 μg/m3
Nitrogen Dioxide: 2.53 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 91.12 μg/m3
Astronomical
Sunrise: 5:44 AM
Sun Transit: 12:29 AM
Sunset: 7:15 PM
Daylight: 13 hrs 31 mins
Sun Transit: 12:29 AM
Sunset: 7:15 PM
Daylight: 13 hrs 31 mins
Moonrise: 4:41 AM
Moon Transit: 11:33 AM
Moonset: 5:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%
Moon Transit: 11:33 AM
Moonset: 5:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
11:03 AM - 1:33 PM11:03 AM - 1:33 PM
Minor Periods
4:49 PM - 6:19 PM4:11 AM - 5:41 AM
Action Rating: 3 out of 5
Thursday, April 16, 2026
Weather Forecast
Patchy rain nearby
46.9°F
40.8°F
43.3°F
91%
0.1 in
80%
0%
5.6 mph
0.4
Air Quality
AQI:
1 - Good
PM2.5:
3.79 μg/m3
PM10:
4.2 μg/m3
Carbon Monoxide: 197.64 μg/m3
Nitrogen Dioxide: 3.77 μg/m3
Sulphur Dioxide: 1.96 μg/m3
Ozone: 74.88 μg/m3
Nitrogen Dioxide: 3.77 μg/m3
Sulphur Dioxide: 1.96 μg/m3
Ozone: 74.88 μg/m3
Astronomical
Sunrise: 5:42 AM
Sun Transit: 12:28 AM
Sunset: 7:16 PM
Daylight: 13 hrs 34 mins
Sun Transit: 12:28 AM
Sunset: 7:16 PM
Daylight: 13 hrs 34 mins
Moonrise: 5:00 AM
Moon Transit: 11:41 AM
Moonset: 6:39 PM
Moon Phase: New
Moon Illumination: 0.8%
Moon Transit: 11:41 AM
Moonset: 6:39 PM
Moon Phase: New
Moon Illumination: 0.8%
Best Times for Fishing or Hunting
Major Periods
1:54 AM - 4:24 AM11:11 AM - 1:41 PM
Minor Periods
6:09 PM - 7:39 PM4:30 AM - 6:00 AM
Action Rating: 5 out of 5
Friday, April 17, 2026
Weather Forecast
Heavy rain
56.3°F
38.5°F
46.5°F
85%
1.48 in
86%
0%
8.3 mph
1
Air Quality
AQI:
1 - Good
PM2.5:
2.34 μg/m3
PM10:
2.64 μg/m3
Carbon Monoxide: 180.81 μg/m3
Nitrogen Dioxide: 3.22 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 74.52 μg/m3
Nitrogen Dioxide: 3.22 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 74.52 μg/m3
Astronomical
Sunrise: 5:41 AM
Sun Transit: 12:28 AM
Sunset: 7:17 PM
Daylight: 13 hrs 37 mins
Sun Transit: 12:28 AM
Sunset: 7:17 PM
Daylight: 13 hrs 37 mins
Moonrise: 5:22 AM
Moon Transit: 12:33 AM
Moonset: 8:01 PM
Moon Phase: New
Moon Illumination: 4.1%
Moon Transit: 12:33 AM
Moonset: 8:01 PM
Moon Phase: New
Moon Illumination: 4.1%
Best Times for Fishing or Hunting
Major Periods
2:44 AM - 5:14 AM12:03 AM - 2:33 PM
Minor Periods
7:31 PM - 9:01 PM4:52 AM - 6:22 AM
Action Rating: 5 out of 5
Saturday, April 18, 2026
Weather Forecast
Cloudy
59.3°F
38.3°F
49.3°F
78%
0 in
0%
0%
9.8 mph
1.5
Air Quality
AQI:
1 - Good
PM2.5:
2.91 μg/m3
PM10:
3.13 μg/m3
Carbon Monoxide: 186.47 μg/m3
Nitrogen Dioxide: 3.54 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 70.46 μg/m3
Nitrogen Dioxide: 3.54 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 70.46 μg/m3
Astronomical
Sunrise: 5:39 AM
Sun Transit: 12:28 AM
Sunset: 7:19 PM
Daylight: 13 hrs 40 mins
Sun Transit: 12:28 AM
Sunset: 7:19 PM
Daylight: 13 hrs 40 mins
Moonrise: 5:49 AM
Moon Transit: 1:29 PM
Moonset: 9:26 PM
Moon Phase: New
Moon Illumination: 1.2%
Moon Transit: 1:29 PM
Moonset: 9:26 PM
Moon Phase: New
Moon Illumination: 1.2%
Best Times for Fishing or Hunting
Major Periods
3:39 AM - 6:09 AM12:59 AM - 3:29 PM
Minor Periods
8:56 PM - 10:26 PM5:19 AM - 6:49 AM
Action Rating: 4 out of 5
Sunday, April 19, 2026
Weather Forecast
Patchy rain nearby
52.6°F
39.8°F
44.9°F
94%
0.19 in
65%
0%
12.1 mph
0.1
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
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sunrise: 5:37 AM
Sun Transit: 12:28 AM
Sunset: 7:20 PM
Daylight: 13 hrs 43 mins
Sun Transit: 12:28 AM
Sunset: 7:20 PM
Daylight: 13 hrs 43 mins
Moonrise: 6:24 AM
Moon Transit: 2:30 PM
Moonset: 10:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%
Moon Transit: 2:30 PM
Moonset: 10:50 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%
Best Times for Fishing or Hunting
Major Periods
4:38 AM - 7:08 AM2:00 PM - 4:30 PM
Minor Periods
10:20 PM - 11:50 PM5:54 AM - 7:24 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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