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

Current Water Temperature

40.1°F

Measurement Time: Thursday, January 15, 2026, 12:36 PM 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

1°F
Overcast
Overcast
-8.9°F
5.1°F
75%
NNW 4.7 mph
6.2 mph
-6.1°F
-3.5°F
0 in
100%
9 mi
1011 mbar
1.1

Five Day Weather Forecast

Partly Cloudy
Thu
H: 14°F
L: -17°F
Overcast
Fri
H: 22°F
L: 9°F
Overcast
Sat
H: 26°F
L: 16°F
Freezing fog
Sun
H: 13°F
L: -11°F
Heavy snow
Mon
H: 13°F
L: -10°F

Air Quality

PM2.5: 2.15 μg/m3
PM10: 2.25 μg/m3
Carbon Monoxide: 206.85 μg/m3
Nitrogen Dioxide: 6.05 μg/m3
Sulphur Dioxide: 2.75 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 8:17 AM
Sun Transit: 12:46 AM
Sunset: 5:17 PM
Daylight: 9 hrs mins
Moonrise: 6:19 AM
Moon Transit: 10:10 AM
Moonset: 2:00 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:40 AM - 12:10 AM

Minor Periods

1:30 PM - 3:00 PM
5:49 AM - 7:19 AM

Action Rating: 2 out of 5

Cold Weather Advisory issued January 14 at 11:02PM EST until January 15 at 10:00AM EST by NWS Gaylord MI

Effective: Wed January 14, 2026, 11:02 PM
Expires: Thu January 15, 2026, 10:00 AM

* WHAT...Very cold wind chills as low as 22 below. * WHERE...Central Chippewa, Eastern Mackinac, and Southeast Chippewa Counties. * WHEN...Until 10 AM EST Thursday. * IMPACTS...The dangerously cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. Wind chill values 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.


Cold Weather Advisory issued January 15 at 2:35AM EST until January 15 at 10:00AM EST by NWS Gaylord MI

Effective: Thu January 15, 2026, 2:35 AM
Expires: Thu January 15, 2026, 10:00 AM

* WHAT...Very cold wind chills as low as 25 below. * WHERE...Central Chippewa, Eastern Mackinac, and Southeast Chippewa Counties. * WHEN...Until 10 AM EST this morning. * IMPACTS...The dangerously cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. Wind chill values 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.


Cold Weather Advisory issued January 14 at 11:02PM EST until January 15 at 10:00AM EST by NWS Gaylord MI

Effective: Wed January 14, 2026, 11:02 PM
Expires: Thu January 15, 2026, 10:00 AM

* WHAT...Very cold wind chills as low as 15 below. * WHERE...Mackinac Island/Bois Blanc Island, and Cheboygan, Crawford, Emmet, Montmorency, Ogemaw, Oscoda, Otsego, Presque Isle, and Roscommon Counties. * WHEN...Until 10 AM EST Thursday. * IMPACTS...The cold wind chills as low as 15 below zero could result in hypothermia or frostbite if precautions are not taken.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible.


Cold Weather Advisory issued January 15 at 2:35AM EST until January 15 at 10:00AM EST by NWS Gaylord MI

Effective: Thu January 15, 2026, 2:35 AM
Expires: Thu January 15, 2026, 10:00 AM

* WHAT...Very cold wind chills as low as 18 below. * WHERE...Mackinac Island/Bois Blanc Island, and Cheboygan, Crawford, Emmet, Montmorency, Ogemaw, Oscoda, Otsego, Presque Isle, and Roscommon Counties. * WHEN...Until 10 AM EST this morning. * IMPACTS...The cold wind chills as low as 18 below zero could result in hypothermia or frostbite if precautions are not taken.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible.


Thursday, January 15, 2026

Weather Forecast

Partly Cloudy
13.8°F
-16.6°F
-0.4°F
66%
0 in
0%
0%
9.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.73 μg/m3
PM10: 1.78 μg/m3
Carbon Monoxide: 184.57 μg/m3
Nitrogen Dioxide: 3.63 μg/m3
Sulphur Dioxide: 1.68 μg/m3
Ozone: 69.96 μg/m3

Astronomical

Sunrise: 8:17 AM
Sun Transit: 12:46 AM
Sunset: 5:17 PM
Daylight: 9 hrs mins
Moonrise: 6:19 AM
Moon Transit: 10:10 AM
Moonset: 2:00 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:40 AM - 12:10 AM

Minor Periods

1:30 PM - 3:00 PM
5:49 AM - 7:19 AM

Action Rating: 2 out of 5

Friday, January 16, 2026

Weather Forecast

Overcast
21.7°F
9°F
16.9°F
87%
0 in
0%
0%
11.4 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 2.97 μg/m3
PM10: 3.07 μg/m3
Carbon Monoxide: 189.25 μg/m3
Nitrogen Dioxide: 5.65 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 65.16 μg/m3

Astronomical

Sunrise: 8:16 AM
Sun Transit: 12:47 AM
Sunset: 5:18 PM
Daylight: 9 hrs 2 mins
Moonrise: 7:13 AM
Moon Transit: 11:02 AM
Moonset: 2:53 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:32 AM - 1:02 PM

Minor Periods

2:23 PM - 3:53 PM
6:43 AM - 8:13 AM

Action Rating: 3 out of 5

Saturday, January 17, 2026

Weather Forecast

Overcast
25.7°F
16.3°F
20.5°F
87%
0 in
0%
6%
7.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.53 μg/m3
PM10: 2.57 μg/m3
Carbon Monoxide: 195.89 μg/m3
Nitrogen Dioxide: 6.23 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 55.48 μg/m3

Astronomical

Sunrise: 8:16 AM
Sun Transit: 12:47 AM
Sunset: 5:20 PM
Daylight: 9 hrs 4 mins
Moonrise: 7:58 AM
Moon Transit: 11:55 AM
Moonset: 3:56 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:25 AM - 1:55 PM

Minor Periods

3:26 PM - 4:56 PM
7:28 AM - 8:58 AM

Action Rating: 4 out of 5

Sunday, January 18, 2026

Weather Forecast

Freezing fog
13.2°F
-11°F
4.7°F
95%
0.03 in
78%
58%
5.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.59 μg/m3
PM10: 2.61 μg/m3
Carbon Monoxide: 199.31 μg/m3
Nitrogen Dioxide: 6.13 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 56.62 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 12:47 AM
Sunset: 5:21 PM
Daylight: 9 hrs 6 mins
Moonrise: 8:34 AM
Moon Transit: 12:46 AM
Moonset: 5:06 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:38 AM - 3:08 AM
12:16 AM - 2:46 PM

Minor Periods

4:36 PM - 6:06 PM
8:04 AM - 9:34 AM

Action Rating: 4 out of 5

Monday, January 19, 2026

Weather Forecast

Heavy snow
13.3°F
-9.9°F
6.3°F
92%
0.09 in
85%
62%
13.6 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 8:14 AM
Sun Transit: 12:48 AM
Sunset: 5:22 PM
Daylight: 9 hrs 8 mins
Moonrise: 9:02 AM
Moon Transit: 1:35 PM
Moonset: 6:19 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

1:28 AM - 3:58 AM
1:05 PM - 3:35 PM

Minor Periods

5:49 PM - 7:19 PM
8:32 AM - 10:02 AM

Action Rating: 5 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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