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

Current Water Temperature

61.5°F

Measurement Time: Sunday, May 31, 2026, 3:45 PM EDT

Temperature Locations

View Nearby Locations     View All Maine Locations     View Locations Near Me

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

47.3°F
Patchy rain nearby
Patchy rain nearby
45.9°F
47.3°F
72%
SE 3.4 mph
6.8 mph
45.9°F
38.1°F
0 in
76%
6 mi
1011 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 63°F
L: 38°F
Sunny
Mon
H: 63°F
L: 36°F
Sunny
Tue
H: 71°F
L: 40°F
Sunny
Wed
H: 77°F
L: 47°F
Sunny
Thu
H: 79°F
L: 50°F

Air Quality

AQI: 1 - Good
PM2.5: 3.14 μg/m3
PM10: 4.04 μg/m3
Carbon Monoxide: 110.04 μg/m3
Nitrogen Dioxide: 1.64 μg/m3
Sulphur Dioxide: 1.74 μg/m3
Ozone: 81 μg/m3

Astronomical

Sunrise: 4:46 AM
Sun Transit: 12:26 AM
Sunset: 8:09 PM
Daylight: 15 hrs 23 mins
Moonrise: 9:06 PM
Moon Transit: 12:14 AM
Moonset: 4:20 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:17 PM - 5:47 PM

Minor Periods

8:36 PM - 10:06 PM
3:50 AM - 5:20 AM

Action Rating: 4 out of 5

yellow advisory - frost - in effect

Service Notice – April 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For Spring 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for June 2026 deployment. Data changes will appear in CAP following this deployment, 2) marine alerts will now be issued for smaller zone splits in certain areas of Atlantic and Pacific waters and 3) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – avril 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour le printemps 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement en juin 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement, 2) les alertes marines seront désormais émises pour des subdivisions de zones plus petites dans certaines régions des eaux de l’Atlantique et du Pacifique et 3) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Sun May 31, 2026, 2:47 PM
Expires: Mon June 1, 2026, 6:47 AM

Conditions are favourable for the development of frost tonight. Locations: all of New Brunswick. Minimum temperatures: near zero in low lying areas. Time span: overnight tonight into Monday morning. ### Frost advisories are issued when widespread frost or freezing temperatures are expected during the growing season. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to NBstorm@ec.gc.ca or post reports on X using #NBStorm.

Take preventative measures to protect cold-sensitive plants, trees, and crops.


Sunday, May 31, 2026

Weather Forecast

Sunny
63.1°F
38.3°F
48.4°F
66%
0 in
0%
0%
6.5 mph
6.3


Air Quality

AQI: 1 - Good
PM2.5: 3.32 μg/m3
PM10: 4.42 μg/m3
Carbon Monoxide: 107.56 μg/m3
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 1.53 μg/m3
Ozone: 80.67 μg/m3

Astronomical

Sunrise: 4:46 AM
Sun Transit: 12:26 AM
Sunset: 8:09 PM
Daylight: 15 hrs 23 mins
Moonrise: 9:06 PM
Moon Transit: 12:14 AM
Moonset: 4:20 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:17 PM - 5:47 PM

Minor Periods

8:36 PM - 10:06 PM
3:50 AM - 5:20 AM

Action Rating: 4 out of 5

Monday, June 1, 2026

Weather Forecast

Sunny
62.8°F
35.6°F
49.1°F
60%
0 in
0%
0%
7.2 mph
6.5


Air Quality

AQI: 1 - Good
PM2.5: 5.17 μg/m3
PM10: 7.09 μg/m3
Carbon Monoxide: 111.34 μg/m3
Nitrogen Dioxide: 0.98 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 78.96 μg/m3

Astronomical

Sunrise: 4:45 AM
Sun Transit: 12:27 AM
Sunset: 8:10 PM
Daylight: 15 hrs 24 mins
Moonrise: 9:58 PM
Moon Transit: 1:05 AM
Moonset: 5:03 AM
Moon Phase: Full
Moon Illumination: 96.8%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
4:09 PM - 6:39 PM

Minor Periods

9:28 PM - 10:58 PM
4:33 AM - 6:03 AM

Action Rating: 4 out of 5

Tuesday, June 2, 2026

Weather Forecast

Sunny
70.8°F
39.7°F
55.8°F
66%
0 in
0%
0%
7.2 mph
6.3


Air Quality

AQI: 1 - Good
PM2.5: 5.76 μg/m3
PM10: 7.87 μg/m3
Carbon Monoxide: 122.32 μg/m3
Nitrogen Dioxide: 1.04 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 76.83 μg/m3

Astronomical

Sunrise: 4:45 AM
Sun Transit: 12:27 AM
Sunset: 8:11 PM
Daylight: 15 hrs 26 mins
Moonrise: 10:42 PM
Moon Transit: 1:56 AM
Moonset: 5:57 AM
Moon Phase: Full
Moon Illumination: 91.7%

Best Times for Fishing or Hunting

Major Periods

1:26 AM - 3:56 AM
5:00 PM - 7:30 PM

Minor Periods

10:12 PM - 11:42 PM
5:27 AM - 6:57 AM

Action Rating: 3 out of 5

Wednesday, June 3, 2026

Weather Forecast

Sunny
77.1°F
47.1°F
62.3°F
61%
0 in
0%
0%
7.8 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 4.76 μg/m3
PM10: 6.21 μg/m3
Carbon Monoxide: 122.51 μg/m3
Nitrogen Dioxide: 1.26 μg/m3
Sulphur Dioxide: 0.99 μg/m3
Ozone: 74.25 μg/m3

Astronomical

Sunrise: 4:44 AM
Sun Transit: 12:27 AM
Sunset: 8:11 PM
Daylight: 15 hrs 27 mins
Moonrise: 11:17 PM
Moon Transit: 2:47 AM
Moonset: 6:57 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.4%

Best Times for Fishing or Hunting

Major Periods

2:17 AM - 4:47 AM
5:50 PM - 8:20 PM

Minor Periods

12:00 AM - 12:00 AM
6:27 AM - 7:57 AM

Action Rating: 4 out of 5

Thursday, June 4, 2026

Weather Forecast

Sunny
78.7°F
50.2°F
62.4°F
61%
0 in
0%
0%
9.8 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 4.63 μg/m3
PM10: 5.24 μg/m3
Carbon Monoxide: 137.89 μg/m3
Nitrogen Dioxide: 1.24 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 71.22 μg/m3

Astronomical

Sunrise: 4:44 AM
Sun Transit: 12:27 AM
Sunset: 8:12 PM
Daylight: 15 hrs 28 mins
Moonrise: 12:17 AM
Moon Transit: 3:36 AM
Moonset: 8:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.3%

Best Times for Fishing or Hunting

Major Periods

3:06 AM - 5:36 AM
6:37 PM - 9:07 PM

Minor Periods

7:33 AM - 9:03 AM
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.

Webcams Near Calais, ME

Sponsored Content