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

Current Water Temperature

73.2°F

Measurement Time: Sunday, June 14, 2026, 4:45 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

59.1°F
Clear
Clear
49.1°F
59.4°F
84%
SE 4.9 mph
8.8 mph
58°F
53.5°F
0 in
7%
6 mi
1008 mbar
0

Five Day Weather Forecast

Cloudy
Sun
H: 75°F
L: 55°F
Moderate rain
Mon
H: 63°F
L: 53°F
Sunny
Tue
H: 75°F
L: 48°F
Partly Cloudy
Wed
H: 75°F
L: 50°F
Heavy rain
Thu
H: 60°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 13 μg/m3
PM10: 18.3 μg/m3
Carbon Monoxide: 116 μg/m3
Nitrogen Dioxide: 1 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 99 μg/m3

Astronomical

Sunrise: 4:41 AM
Sun Transit: 12:29 AM
Sunset: 8:18 PM
Daylight: 15 hrs 37 mins
Moonrise: 3:33 AM
Moon Transit: 11:58 AM
Moonset: 8:30 PM
Moon Phase: New
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

2:05 AM - 4:35 AM
11:28 AM - 1:58 PM

Minor Periods

8:00 PM - 9:30 PM
3:03 AM - 4:33 AM

Action Rating: 6 out of 5

Flood Watch issued June 14 at 1:07PM EDT until June 15 at 8:00AM EDT by NWS Caribou ME

Effective: Sun June 14, 2026, 1:07 PM
Expires: Sun June 14, 2026, 11:15 PM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Far Eastern and Penobscot Valley Maine, including the following areas, in Far Eastern Maine, Northern Washington. In Penobscot Valley Maine, Central Penobscot. * WHEN...Through Monday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Locally heavy rainfall of 1 to 3 inches is likely in a 1-3 hour timeframe, with isolated amounts of between 2 and 4 inches possible. This may cause flash flooding, especially if it falls over areas that recently received heavy rainfall. - For flood safety visit www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.


Sunday, June 14, 2026

Weather Forecast

Cloudy
75.2°F
54.9°F
63°F
86%
0 in
19%
0%
11.6 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 5.75 μg/m3
PM10: 7.83 μg/m3
Carbon Monoxide: 121.13 μg/m3
Nitrogen Dioxide: 0.82 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 85.92 μg/m3

Astronomical

Sunrise: 4:41 AM
Sun Transit: 12:29 AM
Sunset: 8:18 PM
Daylight: 15 hrs 37 mins
Moonrise: 3:33 AM
Moon Transit: 11:58 AM
Moonset: 8:30 PM
Moon Phase: New
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

2:05 AM - 4:35 AM
11:28 AM - 1:58 PM

Minor Periods

8:00 PM - 9:30 PM
3:03 AM - 4:33 AM

Action Rating: 6 out of 5

Monday, June 15, 2026

Weather Forecast

Moderate rain
62.6°F
52.7°F
56.8°F
97%
0.33 in
93%
0%
7.2 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 3.84 μg/m3
PM10: 4.79 μg/m3
Carbon Monoxide: 119.04 μg/m3
Nitrogen Dioxide: 1 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 89.08 μg/m3

Astronomical

Sunrise: 4:41 AM
Sun Transit: 12:29 AM
Sunset: 8:19 PM
Daylight: 15 hrs 37 mins
Moonrise: 4:36 AM
Moon Transit: 1:06 PM
Moonset: 9:33 PM
Moon Phase: New
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

3:13 AM - 5:43 AM
12:36 AM - 3:06 PM

Minor Periods

9:03 PM - 10:33 PM
4:06 AM - 5:36 AM

Action Rating: 3 out of 5

Tuesday, June 16, 2026

Weather Forecast

Sunny
74.6°F
48.2°F
61.9°F
65%
0 in
5%
0%
9.6 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 0.94 μg/m3
PM10: 1.03 μg/m3
Carbon Monoxide: 111.46 μg/m3
Nitrogen Dioxide: 0.91 μg/m3
Sulphur Dioxide: 0.53 μg/m3
Ozone: 59.5 μg/m3

Astronomical

Sunrise: 4:41 AM
Sun Transit: 12:29 AM
Sunset: 8:19 PM
Daylight: 15 hrs 38 mins
Moonrise: 5:52 AM
Moon Transit: 2:12 PM
Moonset: 10:21 PM
Moon Phase: New
Moon Illumination: 1.0%

Best Times for Fishing or Hunting

Major Periods

4:20 AM - 6:50 AM
1:42 PM - 4:12 PM

Minor Periods

9:51 PM - 11:21 PM
5:22 AM - 6:52 AM

Action Rating: 4 out of 5

Wednesday, June 17, 2026

Weather Forecast

Partly Cloudy
74.9°F
49.6°F
61.8°F
64%
0 in
6%
0%
10.7 mph
6.8


Air Quality

AQI: 1 - Good
PM2.5: 3.47 μg/m3
PM10: 4.68 μg/m3
Carbon Monoxide: 113.65 μg/m3
Nitrogen Dioxide: 0.97 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 72.17 μg/m3

Astronomical

Sunrise: 4:41 AM
Sun Transit: 12:30 AM
Sunset: 8:19 PM
Daylight: 15 hrs 38 mins
Moonrise: 7:15 AM
Moon Transit: 3:13 PM
Moonset: 10:56 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%

Best Times for Fishing or Hunting

Major Periods

5:23 AM - 7:53 AM
2:43 PM - 5:13 PM

Minor Periods

10:26 PM - 11:56 PM
6:45 AM - 8:15 AM

Action Rating: 2 out of 5

Thursday, June 18, 2026

Weather Forecast

Heavy rain
60.3°F
47.9°F
54.6°F
92%
0.81 in
90%
0%
13.9 mph
3.4


Air Quality

AQI: 1 - Good
PM2.5: 5.48 μg/m3
PM10: 7.56 μg/m3
Carbon Monoxide: 129.67 μg/m3
Nitrogen Dioxide: 1.44 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 57.33 μg/m3

Astronomical

Sunrise: 4:42 AM
Sun Transit: 12:30 AM
Sunset: 8:20 PM
Daylight: 15 hrs 38 mins
Moonrise: 8:38 AM
Moon Transit: 4:08 PM
Moonset: 11:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

6:20 AM - 8:50 AM
3:38 PM - 6:08 PM

Minor Periods

12:00 AM - 12:00 AM
8:08 AM - 9:38 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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