Water Temperature of the St. Croix River in Calais, ME
Current Water Temperature
Measurement Time: Sunday, June 21, 2026, 6:22 PM EDT
Temperature Locations
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Local Points of Interest
St. Stephen, NBStation 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

Five Day Weather Forecast

Sun
H: 74°F
L: 51°F

Mon
H: 69°F
L: 51°F

Tue
H: 55°F
L: 50°F

Wed
H: 74°F
L: 54°F

Thu
H: 74°F
L: 52°F
Air Quality
Nitrogen Dioxide: 2.2 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 60 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 8:21 PM
Daylight: 15 hrs 39 mins
Moon Transit: 6:27 PM
Moonset: 12:03 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%
Best Times for Fishing or Hunting
Major Periods
8:43 AM - 11:13 AM5:57 PM - 8:27 PM
Minor Periods
11:52 AM - 1:22 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Flood Advisory issued June 21 at 4:25PM EDT until June 21 at 10:30PM EDT by NWS Caribou ME
Effective: Sun June 21, 2026, 4:25 PM
Expires: Sun June 21, 2026, 10:30 PM
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southeast Maine, including the following county, Washington. * WHEN...Until 1030 PM EDT Sunday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 425 PM EDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts of 0.5 to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Pembroke, Alexander, Dennysville, Charlotte, Cooper, Crawford, Wesley, Big Lake and Edmunds. - For flood safety visit www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks.
Flood Advisory issued June 21 at 4:13PM EDT until June 21 at 10:15PM EDT by NWS Caribou ME
Effective: Sun June 21, 2026, 4:13 PM
Expires: Sun June 21, 2026, 10:15 PM
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southeast Maine, including the following county, Washington. * WHEN...Until 1015 PM EDT Sunday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 413 PM EDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts of 1 to 2 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Wesley. - For flood safety visit www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks.
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.01 μg/m3
Sulphur Dioxide: 0.69 μg/m3
Ozone: 57.92 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 8:21 PM
Daylight: 15 hrs 39 mins
Moon Transit: 6:27 PM
Moonset: 12:03 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%
Best Times for Fishing or Hunting
Major Periods
8:43 AM - 11:13 AM5:57 PM - 8:27 PM
Minor Periods
11:52 AM - 1:22 PM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.58 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 66.58 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 8:21 PM
Daylight: 15 hrs 38 mins
Moon Transit: 7:10 PM
Moonset: 12:21 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%
Best Times for Fishing or Hunting
Major Periods
9:25 AM - 11:55 AM6:40 PM - 9:10 PM
Minor Periods
1:00 PM - 2:30 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.1 μg/m3
Sulphur Dioxide: 0.67 μg/m3
Ozone: 83.21 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 8:21 PM
Daylight: 15 hrs 38 mins
Moon Transit: 7:52 PM
Moonset: 12:39 AM
Moon Phase: First Quarter
Moon Illumination: 61.0%
Best Times for Fishing or Hunting
Major Periods
10:08 AM - 12:38 AM7:22 PM - 9:52 PM
Minor Periods
2:08 PM - 3:38 PM12:09 AM - 1:39 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.19 μg/m3
Sulphur Dioxide: 0.57 μg/m3
Ozone: 57.92 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 8:21 PM
Daylight: 15 hrs 38 mins
Moon Transit: 8:36 PM
Moonset: 12:58 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%
Best Times for Fishing or Hunting
Major Periods
10:51 AM - 1:21 PM8:06 PM - 10:36 PM
Minor Periods
3:15 PM - 4:45 PM12:28 AM - 1:58 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.48 μg/m3
Sulphur Dioxide: 0.89 μg/m3
Ozone: 45.67 μg/m3
Astronomical
Sun Transit: 12:31 AM
Sunset: 8:21 PM
Daylight: 15 hrs 38 mins
Moon Transit: 9:22 PM
Moonset: 1:19 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%
Best Times for Fishing or Hunting
Major Periods
11:36 AM - 2:06 PM8:52 PM - 11:22 PM
Minor Periods
4:22 PM - 5:52 PM12:49 AM - 2:19 AM
Action Rating: 2 out of 5
