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

Current Water Temperature

43.9°F

Measurement Time: Thursday, January 29, 2026, 10:06 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

-23.8°F
Sunny
Sunny
-31.3°F
-20.7°F
75%
NE 2.2 mph
3.2 mph
-31.5°F
-38.2°F
0 in
25%
19 mi
1025 mbar
0.6

Five Day Weather Forecast

Partly Cloudy
Thu
H: 1°F
L: -25°F
Overcast
Fri
H: 8°F
L: -16°F
Sunny
Sat
H: 20°F
L: 0°F
Mist
Sun
H: 25°F
L: -11°F
Light snow showers
Mon
H: 27°F
L: 7°F

Air Quality

AQI: 1 - Good
PM2.5: 1.75 μg/m3
PM10: 1.85 μg/m3
Carbon Monoxide: 180.85 μg/m3
Nitrogen Dioxide: 2.65 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 71 μg/m3

Astronomical

Sunrise: 8:04 AM
Sun Transit: 12:50 AM
Sunset: 5:37 PM
Daylight: 9 hrs 33 mins
Moonrise: 1:32 PM
Moon Transit: 10:12 PM
Moonset: 5:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.7%

Best Times for Fishing or Hunting

Major Periods

9:57 AM - 12:27 AM
12:00 AM - 12:00 AM

Minor Periods

1:02 PM - 2:32 PM
5:17 AM - 6:47 AM

Action Rating: 2 out of 5

Cold Weather Advisory issued January 29 at 12:08AM EST until January 29 at 10:00AM EST by NWS Gaylord MI

Effective: Thu January 29, 2026, 12:08 AM
Expires: Thu January 29, 2026, 10:00 AM

* WHAT...Very cold wind chills as low as 19 below. * WHERE...Portions of Eastern Upper and Northern Lower Michigan. * WHEN...Until 10 AM EST this morning. * IMPACTS...The dangerously cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. Very cold temperatures can lead to hypothermia with prolonged exposure.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.


Thursday, January 29, 2026

Weather Forecast

Partly Cloudy
1°F
-24.5°F
-11.2°F
58%
0 in
0%
0%
5.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 2.13 μg/m3
PM10: 2.23 μg/m3
Carbon Monoxide: 194.13 μg/m3
Nitrogen Dioxide: 3.93 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 66.4 μg/m3

Astronomical

Sunrise: 8:04 AM
Sun Transit: 12:50 AM
Sunset: 5:37 PM
Daylight: 9 hrs 33 mins
Moonrise: 1:32 PM
Moon Transit: 10:12 PM
Moonset: 5:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.7%

Best Times for Fishing or Hunting

Major Periods

9:57 AM - 12:27 AM
12:00 AM - 12:00 AM

Minor Periods

1:02 PM - 2:32 PM
5:17 AM - 6:47 AM

Action Rating: 2 out of 5

Friday, January 30, 2026

Weather Forecast

Overcast
7.8°F
-15.9°F
-2.9°F
79%
0 in
0%
0%
8.7 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.19 μg/m3
PM10: 2.34 μg/m3
Carbon Monoxide: 173.09 μg/m3
Nitrogen Dioxide: 3.58 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 67.04 μg/m3

Astronomical

Sunrise: 8:03 AM
Sun Transit: 12:50 AM
Sunset: 5:38 PM
Daylight: 9 hrs 35 mins
Moonrise: 2:45 PM
Moon Transit: 11:16 PM
Moonset: 6:48 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.4%

Best Times for Fishing or Hunting

Major Periods

11:02 AM - 1:32 PM
12:00 AM - 12:00 AM

Minor Periods

2:15 PM - 3:45 PM
6:18 AM - 7:48 AM

Action Rating: 3 out of 5

Saturday, January 31, 2026

Weather Forecast

Sunny
19.8°F
0.3°F
7.8°F
75%
0 in
0%
0%
7.8 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 2.05 μg/m3
PM10: 2.22 μg/m3
Carbon Monoxide: 168.13 μg/m3
Nitrogen Dioxide: 3.34 μg/m3
Sulphur Dioxide: 1.53 μg/m3
Ozone: 76.24 μg/m3

Astronomical

Sunrise: 8:02 AM
Sun Transit: 12:50 AM
Sunset: 5:40 PM
Daylight: 9 hrs 38 mins
Moonrise: 4:07 PM
Moon Transit: 12:00 AM
Moonset: 7:34 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:04 AM - 2:34 PM

Minor Periods

3:37 PM - 5:07 PM
7:04 AM - 8:34 AM

Action Rating: 2 out of 5

Sunday, February 1, 2026

Weather Forecast

Mist
25.3°F
-11°F
4.1°F
93%
0 in
0%
9%
5.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.27 μg/m3
PM10: 5.36 μg/m3
Carbon Monoxide: 227.77 μg/m3
Nitrogen Dioxide: 7.91 μg/m3
Sulphur Dioxide: 2.52 μg/m3
Ozone: 68.84 μg/m3

Astronomical

Sunrise: 8:01 AM
Sun Transit: 12:50 AM
Sunset: 5:41 PM
Daylight: 9 hrs 41 mins
Moonrise: 5:30 PM
Moon Transit: 12:15 AM
Moonset: 8:08 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:01 PM - 3:31 PM

Minor Periods

5:00 PM - 6:30 PM
7:38 AM - 9:08 AM

Action Rating: 4 out of 5

Monday, February 2, 2026

Weather Forecast

Light snow showers
27.4°F
7.2°F
18.8°F
94%
0.12 in
83%
68%
10.7 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4 μg/m3
PM10: 4.05 μg/m3
Carbon Monoxide: 207.97 μg/m3
Nitrogen Dioxide: 6.21 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 74.92 μg/m3

Astronomical

Sunrise: 7:59 AM
Sun Transit: 12:50 AM
Sunset: 5:43 PM
Daylight: 9 hrs 44 mins
Moonrise: 6:51 PM
Moon Transit: 1:10 AM
Moonset: 8:34 AM
Moon Phase: Full
Moon Illumination: 99.4%

Best Times for Fishing or Hunting

Major Periods

12:40 AM - 3:10 AM
1:53 PM - 4:23 PM

Minor Periods

6:21 PM - 7:51 PM
8:04 AM - 9:34 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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