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

Current Water Temperature

43.5°F

Measurement Time: Tuesday, February 24, 2026, 5:42 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

-3.3°F
Clear
Clear
-13.2°F
-11.4°F
47%
E 4.3 mph
8.9 mph
-23.2°F
-24.3°F
0 in
0%
9 mi
1019 mbar
0

Five Day Weather Forecast

Moderate or heavy snow showers
Tue
H: 20°F
L: -13°F
Overcast
Wed
H: 21°F
L: 6°F
Partly Cloudy
Thu
H: 27°F
L: 9°F
Light snow
Fri
H: 35°F
L: -3°F
Moderate or heavy snow showers
Sat
H: 20°F
L: 11°F

Air Quality

AQI: 1 - Good
PM2.5: 3.05 μg/m3
PM10: 3.55 μg/m3
Carbon Monoxide: 189.85 μg/m3
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:50 AM
Sunset: 6:16 PM
Daylight: 10 hrs 51 mins
Moonrise: 10:32 AM
Moon Transit: 7:00 PM
Moonset: 2:21 AM
Moon Phase: First Quarter
Moon Illumination: 51.1%

Best Times for Fishing or Hunting

Major Periods

6:46 AM - 9:16 AM
6:30 PM - 9:00 PM

Minor Periods

10:02 AM - 11:32 AM
1:51 AM - 3:21 AM

Action Rating: 3 out of 5

Winter Storm Warning issued February 23 at 2:48PM EST until February 25 at 12:00AM EST by NWS Gaylord MI

Effective: Mon February 23, 2026, 2:48 PM
Expires: Tue February 24, 2026, 3:00 AM

* WHAT...Heavy snow with blowing and drifting snow expected. Total snow accumulations between 6 and 9 inches. * WHERE...Central Chippewa, Eastern Mackinac, Southeast Chippewa, Western Chippewa, and Western Mackinac Counties. * WHEN...From 10 AM Tuesday to midnight EST Tuesday Night. * IMPACTS...Travel could be very difficult, particularly for the US-2 corridor west of the Mackinac Bridge. The hazardous conditions could impact the Tuesday evening commute.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency.
Tuesday, February 24, 2026

Weather Forecast

Moderate or heavy snow showers
19.9°F
-12.5°F
3.8°F
72%
0.26 in
75%
29%
17 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.07 μg/m3
PM10: 3.6 μg/m3
Carbon Monoxide: 174.77 μg/m3
Nitrogen Dioxide: 3.08 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 80.68 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:50 AM
Sunset: 6:16 PM
Daylight: 10 hrs 51 mins
Moonrise: 10:32 AM
Moon Transit: 7:00 PM
Moonset: 2:21 AM
Moon Phase: First Quarter
Moon Illumination: 51.1%

Best Times for Fishing or Hunting

Major Periods

6:46 AM - 9:16 AM
6:30 PM - 9:00 PM

Minor Periods

10:02 AM - 11:32 AM
1:51 AM - 3:21 AM

Action Rating: 3 out of 5

Wednesday, February 25, 2026

Weather Forecast

Overcast
20.9°F
6.1°F
18.8°F
87%
0 in
0%
3%
14.5 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 3.1 μg/m3
PM10: 3.21 μg/m3
Carbon Monoxide: 178.25 μg/m3
Nitrogen Dioxide: 3.74 μg/m3
Sulphur Dioxide: 1.48 μg/m3
Ozone: 77.84 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:50 AM
Sunset: 6:18 PM
Daylight: 10 hrs 54 mins
Moonrise: 11:23 AM
Moon Transit: 8:02 PM
Moonset: 3:37 AM
Moon Phase: First Quarter
Moon Illumination: 62.3%

Best Times for Fishing or Hunting

Major Periods

7:48 AM - 10:18 AM
7:32 PM - 10:02 PM

Minor Periods

10:53 AM - 12:23 AM
3:07 AM - 4:37 AM

Action Rating: 3 out of 5

Thursday, February 26, 2026

Weather Forecast

Partly Cloudy
27.1°F
9°F
19°F
80%
0 in
0%
0%
5.8 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 2.13 μg/m3
PM10: 2.29 μg/m3
Carbon Monoxide: 168.65 μg/m3
Nitrogen Dioxide: 2.55 μg/m3
Sulphur Dioxide: 1.44 μg/m3
Ozone: 82.28 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:50 AM
Sunset: 6:19 PM
Daylight: 10 hrs 58 mins
Moonrise: 12:29 AM
Moon Transit: 9:04 PM
Moonset: 4:41 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

8:51 AM - 11:21 AM
8:34 PM - 11:04 PM

Minor Periods

11:59 AM - 1:29 PM
4:11 AM - 5:41 AM

Action Rating: 2 out of 5

Friday, February 27, 2026

Weather Forecast

Light snow
34.5°F
-2.7°F
21.6°F
94%
0.01 in
89%
42%
16.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 8.77 μg/m3
PM10: 9.24 μg/m3
Carbon Monoxide: 197.02 μg/m3
Nitrogen Dioxide: 4.68 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 82.92 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:49 AM
Sunset: 6:21 PM
Daylight: 11 hrs 1 mins
Moonrise: 1:45 PM
Moon Transit: 10:04 PM
Moonset: 5:30 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

9:52 AM - 12:22 AM
12:00 AM - 12:00 AM

Minor Periods

1:15 PM - 2:45 PM
5:00 AM - 6:30 AM

Action Rating: 2 out of 5

Saturday, February 28, 2026

Weather Forecast

Moderate or heavy snow showers
19.9°F
11.3°F
20.9°F
86%
0.07 in
74%
54%
20.1 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.85 μg/m3
PM10: 4.24 μg/m3
Carbon Monoxide: 176.16 μg/m3
Nitrogen Dioxide: 3.54 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 85 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:49 AM
Sunset: 6:22 PM
Daylight: 11 hrs 4 mins
Moonrise: 3:06 PM
Moon Transit: 11:00 PM
Moonset: 6:08 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.1%

Best Times for Fishing or Hunting

Major Periods

10:49 AM - 1:19 PM
12:00 AM - 12:00 AM

Minor Periods

2:36 PM - 4:06 PM
5:38 AM - 7:08 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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