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

Current Water Temperature

43.9°F

Measurement Time: Saturday, February 7, 2026, 5:00 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

-4.5°F
Clear
Clear
-20.6°F
-4.5°F
59%
NNW 12.1 mph
20.4 mph
-20.6°F
-15°F
0 in
11%
6 mi
1028 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 10°F
L: -6°F
Overcast
Sun
H: 21°F
L: -4°F
Overcast
Mon
H: 29°F
L: 15°F
Heavy snow
Tue
H: 20°F
L: 14°F
Light snow
Wed
H: 21°F
L: 4°F

Air Quality

AQI: 1 - Good
PM2.5: 1.55 μg/m3
PM10: 1.65 μg/m3
Carbon Monoxide: 171.85 μg/m3
Nitrogen Dioxide: 2.35 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 82 μg/m3

Astronomical

Sunrise: 7:53 AM
Sun Transit: 12:51 AM
Sunset: 5:51 PM
Daylight: 9 hrs 58 mins
Moonrise: 12:39 AM
Moon Transit: 4:54 AM
Moonset: 10:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 63.7%

Best Times for Fishing or Hunting

Major Periods

4:24 AM - 6:54 AM
5:33 PM - 8:03 PM

Minor Periods

9:30 AM - 11:00 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Cold Weather Advisory issued February 6 at 1:59PM EST until February 7 at 9:00AM EST by NWS Gaylord MI

Effective: Fri February 6, 2026, 1:59 PM
Expires: Sat February 7, 2026, 2:00 AM

* WHAT...Very cold wind chills as low as 25 below zero expected. * WHERE...Portions of Eastern Upper and Northern Lower Michigan. * WHEN...From 7 PM this evening to 9 AM EST Saturday. * IMPACTS...The dangerously cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly.


Cold Weather Advisory issued February 6 at 11:08PM EST until February 7 at 9:00AM EST by NWS Gaylord MI

Effective: Fri February 6, 2026, 11:08 PM
Expires: Sat February 7, 2026, 9:00 AM

* WHAT...Very cold wind chills as low as 25 below zero expected. * WHERE...Portions of Eastern Upper and Northern Lower Michigan. * WHEN...Until 9 AM EST Saturday. * IMPACTS...The dangerously cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly.


Winter Weather Advisory issued February 6 at 1:57PM EST until February 7 at 7:00AM EST by NWS Gaylord MI

Effective: Fri February 6, 2026, 1:57 PM
Expires: Sat February 7, 2026, 2:00 AM

* WHAT...Lake effect snow and blowing snow. Snow accumulations of 1 to 4 inches. The highest amounts are expected west of a line from Newberry and Naubinway. Winds gusting as high as 40 mph. * WHERE...Western Mackinac County. * WHEN...Until 7 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute. Gusty winds will likely result in blowing snow and pockets of significantly reduced visibility, including along US-2.

Slow down and use caution while traveling.


Winter Weather Advisory issued February 6 at 11:12PM EST until February 7 at 7:00AM EST by NWS Gaylord MI

Effective: Fri February 6, 2026, 11:12 PM
Expires: Sat February 7, 2026, 7:00 AM

* WHAT...Lake effect snow. Additional snow accumulations up to two inches. The highest amounts are expected west of a line from Newberry and Naubinway. Winds gusting as high as 30 mph. * WHERE...Western Mackinac County. * WHEN...Until 7 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute. Gusty winds will likely result in blowing snow and pockets of significantly reduced visibility, including along US-2.

Slow down and use caution while traveling.


Saturday, February 7, 2026

Weather Forecast

Sunny
10.4°F
-5.8°F
-0.5°F
67%
0 in
0%
0%
13.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.43 μg/m3
PM10: 1.54 μg/m3
Carbon Monoxide: 164.21 μg/m3
Nitrogen Dioxide: 2.06 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 81.16 μg/m3

Astronomical

Sunrise: 7:53 AM
Sun Transit: 12:51 AM
Sunset: 5:51 PM
Daylight: 9 hrs 58 mins
Moonrise: 12:39 AM
Moon Transit: 4:54 AM
Moonset: 10:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 63.7%

Best Times for Fishing or Hunting

Major Periods

4:24 AM - 6:54 AM
5:33 PM - 8:03 PM

Minor Periods

9:30 AM - 11:00 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, February 8, 2026

Weather Forecast

Overcast
20.7°F
-3.6°F
11.9°F
84%
0 in
0%
3%
8.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 1.99 μg/m3
PM10: 2.09 μg/m3
Carbon Monoxide: 188.09 μg/m3
Nitrogen Dioxide: 3.49 μg/m3
Sulphur Dioxide: 1.54 μg/m3
Ozone: 80.64 μg/m3

Astronomical

Sunrise: 7:51 AM
Sun Transit: 12:51 AM
Sunset: 5:52 PM
Daylight: 10 hrs 1 mins
Moonrise: 12:48 AM
Moon Transit: 5:38 AM
Moonset: 10:20 AM
Moon Phase: Last Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

5:08 AM - 7:38 AM
6:17 PM - 8:47 PM

Minor Periods

9:50 AM - 11:20 AM
12:18 AM - 1:48 AM

Action Rating: 4 out of 5

Monday, February 9, 2026

Weather Forecast

Overcast
28.8°F
14.9°F
21°F
89%
0 in
0%
0%
11.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.98 μg/m3
PM10: 4.11 μg/m3
Carbon Monoxide: 190.39 μg/m3
Nitrogen Dioxide: 5.14 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 79.8 μg/m3

Astronomical

Sunrise: 7:50 AM
Sun Transit: 12:51 AM
Sunset: 5:54 PM
Daylight: 10 hrs 4 mins
Moonrise: 1:56 AM
Moon Transit: 6:23 AM
Moonset: 10:44 AM
Moon Phase: Last Quarter
Moon Illumination: 41.2%

Best Times for Fishing or Hunting

Major Periods

5:53 AM - 8:23 AM
7:04 PM - 9:34 PM

Minor Periods

10:14 AM - 11:44 AM
1:26 AM - 2:56 AM

Action Rating: 2 out of 5

Tuesday, February 10, 2026

Weather Forecast

Heavy snow
19.6°F
13.5°F
19.5°F
94%
0.16 in
85%
47%
14.3 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 7.46 μg/m3
PM10: 7.53 μg/m3
Carbon Monoxide: 241.15 μg/m3
Nitrogen Dioxide: 8.15 μg/m3
Sulphur Dioxide: 2.21 μg/m3
Ozone: 61.24 μg/m3

Astronomical

Sunrise: 7:48 AM
Sun Transit: 12:51 AM
Sunset: 5:55 PM
Daylight: 10 hrs 7 mins
Moonrise: 3:04 AM
Moon Transit: 7:11 AM
Moonset: 11:14 AM
Moon Phase: Last Quarter
Moon Illumination: 30.3%

Best Times for Fishing or Hunting

Major Periods

6:41 AM - 9:11 AM
7:53 PM - 10:23 PM

Minor Periods

10:44 AM - 12:14 AM
2:34 AM - 4:04 AM

Action Rating: 2 out of 5

Wednesday, February 11, 2026

Weather Forecast

Light snow
21.4°F
4.1°F
17.5°F
90%
0.04 in
82%
40%
14.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.2 μg/m3
PM10: 1.2 μg/m3
Carbon Monoxide: 176.47 μg/m3
Nitrogen Dioxide: 2.24 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 71.69 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 12:51 AM
Sunset: 5:57 PM
Daylight: 10 hrs 10 mins
Moonrise: 4:08 AM
Moon Transit: 8:01 AM
Moonset: 11:53 AM
Moon Phase: Last Quarter
Moon Illumination: 20.5%

Best Times for Fishing or Hunting

Major Periods

7:31 AM - 10:01 AM
8:44 PM - 11:14 PM

Minor Periods

11:23 AM - 12:53 AM
3:38 AM - 5:08 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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