Water Temperature of the St. Marys River in Sault Ste. Marie, MI

Current Water Temperature

44.1°F

Measurement Time: Saturday, February 14, 2026, 4:42 AM EST

Temperature Locations

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Local Points of Interest

Rotary Park; Rotary Island; Steers Island; Island Number One; Sault Sainte Marie

St. Marys River

Station Name: Little Rapids
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 568 feet

Sensor Depth: -8 feet

Nearest Address:
1425 Riverside Dr
Sault Ste. Marie, MI 49783
Chippewa County

GPS Coordinates: 46.485832, -84.301666

Nearby Water Temperatures

St. Marys River, Sault Ste. Marie, MI (3.5 mi)
St. Marys River, Barbeau, MI (14.5 mi)
St. Marys River, Barbeau, MI (16.2 mi)
Lake Huron, De Tour Village, MI (39.2 mi)
Lake Huron, Bois Blanc Island, MI (49.9 mi)
Straits of Mackinac, Mackinaw City, MI (50.9 mi)
Seul Choix Bay, Port Inland, MI (83.1 mi)
Little Traverse Bay, Petoskey, MI (83.7 mi)
Lake Huron, Alpena, MI (105.3 mi)
Miners River, Munising, MI (106.5 mi)
Thunder Bay River, Alpena, MI (106.9 mi)
Lake Huron, Alpena, MI (114.8 mi)
North Branch Au Sable River, Grayling, MI (122.4 mi)
Au Sable River, Luzerne, MI (125 mi)
Au Sable River, Mio, MI (126.4 mi)

Weather for Sault Ste. Marie, Michigan

Current Weather

24.1°F
Freezing fog
Freezing fog
20.5°F
18.6°F
100%
WNW 2.9 mph
6.1 mph
11°F
11.1°F
0 in
60%
0 mi
1017 mbar
0

Five Day Weather Forecast

Overcast
Sat
H: 30°F
L: 13°F
Mist
Sun
H: 32°F
L: 24°F
Freezing fog
Mon
H: 33°F
L: 30°F
Freezing fog
Tue
H: 31°F
L: 17°F
Blizzard
Wed
H: 24°F
L: 15°F

Air Quality

AQI: 1 - Good
PM2.5: 3.25 μg/m3
PM10: 3.25 μg/m3
Carbon Monoxide: 314.85 μg/m3
Nitrogen Dioxide: 8.65 μg/m3
Sulphur Dioxide: 2.95 μg/m3
Ozone: 61 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 12:51 AM
Sunset: 6:01 PM
Daylight: 10 hrs 19 mins
Moonrise: 6:33 AM
Moon Transit: 10:37 AM
Moonset: 2:49 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:07 AM - 12:37 AM

Minor Periods

2:19 PM - 3:49 PM
6:03 AM - 7:33 AM

Action Rating: 3 out of 5

Special Weather Statement issued February 13 at 9:28PM EST by NWS Gaylord MI

Effective: Fri February 13, 2026, 9:28 PM
Expires: Sat February 14, 2026, 7:00 AM

Areas of freezing fog have developed across portions of northern Michigan this evening, and is expected to continue developing through the night into Saturday morning. In prone areas, the freezing fog may be locally dense, leading to reductions in visibility. In addition to reductions in visibility, temperatures falling below freezing tonight may lead to the development of slick spots on area roadways following snowmelt from today's warmer temperatures... especially on prone surfaces such as bridges and overpasses. Be cognizant of weather conditions if traveling tonight into tomorrow morning. Use low-beam headlights if you encounter dense fog, and slow down if slippery / icy road surfaces materialize.


Saturday, February 14, 2026

Weather Forecast

Overcast
30.4°F
13.3°F
22.7°F
90%
0 in
0%
0%
6.7 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 4.32 μg/m3
PM10: 4.55 μg/m3
Carbon Monoxide: 234.69 μg/m3
Nitrogen Dioxide: 4.95 μg/m3
Sulphur Dioxide: 2 μg/m3
Ozone: 73.24 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 12:51 AM
Sunset: 6:01 PM
Daylight: 10 hrs 19 mins
Moonrise: 6:33 AM
Moon Transit: 10:37 AM
Moonset: 2:49 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:07 AM - 12:37 AM

Minor Periods

2:19 PM - 3:49 PM
6:03 AM - 7:33 AM

Action Rating: 3 out of 5

Sunday, February 15, 2026

Weather Forecast

Mist
31.8°F
24.4°F
29°F
95%
0 in
0%
0%
5.8 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 6.88 μg/m3
PM10: 7.1 μg/m3
Carbon Monoxide: 258.41 μg/m3
Nitrogen Dioxide: 6.36 μg/m3
Sulphur Dioxide: 2.22 μg/m3
Ozone: 68.68 μg/m3

Astronomical

Sunrise: 7:40 AM
Sun Transit: 12:51 AM
Sunset: 6:03 PM
Daylight: 10 hrs 22 mins
Moonrise: 7:04 AM
Moon Transit: 11:28 AM
Moonset: 4:01 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:58 AM - 1:28 PM

Minor Periods

3:31 PM - 5:01 PM
6:34 AM - 8:04 AM

Action Rating: 3 out of 5

Monday, February 16, 2026

Weather Forecast

Freezing fog
32.7°F
29.5°F
30.7°F
95%
0.2 in
83%
15%
11.4 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 7.3 μg/m3
PM10: 7.58 μg/m3
Carbon Monoxide: 331.61 μg/m3
Nitrogen Dioxide: 9 μg/m3
Sulphur Dioxide: 2.29 μg/m3
Ozone: 52.92 μg/m3

Astronomical

Sunrise: 7:39 AM
Sun Transit: 12:51 AM
Sunset: 6:04 PM
Daylight: 10 hrs 26 mins
Moonrise: 7:28 AM
Moon Transit: 12:16 AM
Moonset: 5:15 PM
Moon Phase: New
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:10 AM - 2:40 AM
11:46 AM - 2:16 PM

Minor Periods

4:45 PM - 6:15 PM
6:58 AM - 8:28 AM

Action Rating: 4 out of 5

Tuesday, February 17, 2026

Weather Forecast

Freezing fog
31°F
16.5°F
25.8°F
94%
0 in
0%
9%
10.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 2.45 μg/m3
PM10: 2.63 μg/m3
Carbon Monoxide: 162.89 μg/m3
Nitrogen Dioxide: 3.22 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 80.28 μg/m3

Astronomical

Sunrise: 7:37 AM
Sun Transit: 12:51 AM
Sunset: 6:06 PM
Daylight: 10 hrs 29 mins
Moonrise: 7:49 AM
Moon Transit: 1:03 PM
Moonset: 6:31 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:57 AM - 3:27 AM
12:33 AM - 3:03 PM

Minor Periods

6:01 PM - 7:31 PM
7:19 AM - 8:49 AM

Action Rating: 5 out of 5

Wednesday, February 18, 2026

Weather Forecast

Blizzard
23.5°F
14.8°F
18.3°F
87%
0.25 in
78%
46%
18.8 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.55 μg/m3
PM10: 1.63 μg/m3
Carbon Monoxide: 174.4 μg/m3
Nitrogen Dioxide: 2.97 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 72.54 μg/m3

Astronomical

Sunrise: 7:35 AM
Sun Transit: 12:51 AM
Sunset: 6:07 PM
Daylight: 10 hrs 32 mins
Moonrise: 8:07 AM
Moon Transit: 1:49 PM
Moonset: 7:45 PM
Moon Phase: New
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

1:43 AM - 4:13 AM
1:19 PM - 3:49 PM

Minor Periods

7:15 PM - 8:45 PM
7:37 AM - 9:07 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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