Water Temperature of the St. Clair River in Algonac, MI

Current Water Temperature

69.8°F

Measurement Time: Wednesday, September 16, 2026, 7:48 AM EDT

Temperature Locations

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Local Points of Interest

Russell Island; Walpole Island

St. Clair River

Station Name: Algonac
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 571 feet

Sensor Depth: -6 feet

Nearest Address:
1530 Saint Clair River Dr
Algonac, MI 48001
St. Clair County

GPS Coordinates: 42.621113, -82.526665

Nearby Water Temperatures

Clinton River, Mt. Clemens, MI (19.5 mi)
Clinton River, Sterling Heights, MI (25.4 mi)
Lake Huron, Lakeport, MI (35.8 mi)
Detroit River, Detroit, MI (36.7 mi)
River Rouge, Detroit, MI (40.9 mi)
Lower River Rouge, Dearborn, MI (42.9 mi)
River Raisin, Monroe, MI (68.7 mi)
Lake Erie, Marblehead, OH (75.2 mi)
Lake Huron, Harbor Beach, MI (84.9 mi)
Grand River, Fairport Harbor, OH (87.2 mi)
Lake Erie, Cleveland, OH (87.5 mi)
Shiawassee River, Saginaw, MI (89.2 mi)
Saginaw River, Saginaw, MI (90.8 mi)
Tittabawassee River, Freeland, MI (102 mi)
Lake Huron, Port Austin, MI (115 mi)

Weather for Algonac, Michigan

Current Weather

66°F

Conditions: Slight Chance Rain Showers

Humidity: 99%

Wind: NNE 6 mph

Dew Point: 66°F

Weather Forecast

Today
73°F - Slight Chance Rain Showers then Mostly Cloudy

Tonight
60°F - Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms

Thursday
75°F - Slight Chance Rain Showers then Partly Sunny

Thursday Night
56°F - Mostly Cloudy

Friday
73°F - Mostly Sunny

Friday Night
54°F - Mostly Cloudy then Chance Rain Showers

Saturday
69°F - Showers And Thunderstorms

Saturday Night
55°F - Showers And Thunderstorms

Sunday
70°F - Chance Rain Showers

Sunday Night
54°F - Slight Chance Rain Showers

Monday
70°F - Chance Rain Showers

Monday Night
55°F - Chance Showers And Thunderstorms

Tuesday
73°F - Chance Showers And Thunderstorms

Tuesday Night
57°F - Chance Showers And Thunderstorms

Astronomical

Sunrise: 7:11 AM
Sun Transit: 1:24 PM
Sunset: 7:38 PM
Daylight: 12 hrs 27 mins

Moonrise: 1:19 PM
Moon Transit: 5:43 PM
Moonset: 10:04 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

5:50 AM - 8:20 AM
5:13 PM - 7:43 PM

Minor Periods

9:34 PM - 11:04 PM
12:49 AM - 2:19 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:11 AM
Sun Transit: 1:24 PM
Sunset: 7:38 PM
Daylight: 12 hrs 27 mins

Moonrise: 1:19 PM
Moon Transit: 5:43 PM
Moonset: 10:04 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

5:50 AM - 8:20 AM
5:13 PM - 7:43 PM

Minor Periods

9:34 PM - 11:04 PM
12:49 AM - 2:19 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:11 AM
Sun Transit: 1:24 PM
Sunset: 7:38 PM
Daylight: 12 hrs 27 mins

Moonrise: 1:19 PM
Moon Transit: 5:43 PM
Moonset: 10:04 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

5:50 AM - 8:20 AM
5:13 PM - 7:43 PM

Minor Periods

9:34 PM - 11:04 PM
12:49 AM - 2:19 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:12 AM
Sun Transit: 1:24 PM
Sunset: 7:36 PM
Daylight: 12 hrs 24 mins

Moonrise: 2:21 PM
Moon Transit: 6:34 PM
Moonset: 10:47 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

6:41 AM - 9:11 AM
6:04 PM - 8:34 PM

Minor Periods

10:17 PM - 11:47 PM
1:51 PM - 3:21 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:12 AM
Sun Transit: 1:24 PM
Sunset: 7:36 PM
Daylight: 12 hrs 24 mins

Moonrise: 2:21 PM
Moon Transit: 6:34 PM
Moonset: 10:47 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

6:41 AM - 9:11 AM
6:04 PM - 8:34 PM

Minor Periods

10:17 PM - 11:47 PM
1:51 PM - 3:21 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:13 AM
Sun Transit: 1:24 PM
Sunset: 7:34 PM
Daylight: 12 hrs 21 mins

Moonrise: 3:16 PM
Moon Transit: 7:26 PM
Moonset: 11:37 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

7:32 AM - 10:02 AM
6:56 PM - 9:26 PM

Minor Periods

12:00 AM - 12:00 AM
2:46 PM - 4:16 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:13 AM
Sun Transit: 1:24 PM
Sunset: 7:34 PM
Daylight: 12 hrs 21 mins

Moonrise: 3:16 PM
Moon Transit: 7:26 PM
Moonset: 11:37 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

7:32 AM - 10:02 AM
6:56 PM - 9:26 PM

Minor Periods

12:00 AM - 12:00 AM
2:46 PM - 4:16 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:14 AM
Sun Transit: 1:23 PM
Sunset: 7:32 PM
Daylight: 12 hrs 18 mins

Moonrise: 4:03 PM
Moon Transit: 8:17 PM
Moonset: 12:37 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

8:23 AM - 10:53 AM
7:47 PM - 10:17 PM

Minor Periods

3:33 PM - 5:03 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:14 AM
Sun Transit: 1:23 PM
Sunset: 7:32 PM
Daylight: 12 hrs 18 mins

Moonrise: 4:03 PM
Moon Transit: 8:17 PM
Moonset: 12:37 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

8:23 AM - 10:53 AM
7:47 PM - 10:17 PM

Minor Periods

3:33 PM - 5:03 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:15 AM
Sun Transit: 1:23 PM
Sunset: 7:31 PM
Daylight: 12 hrs 15 mins

Moonrise: 4:43 PM
Moon Transit: 9:07 PM
Moonset: 12:35 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

9:14 AM - 11:44 AM
8:37 PM - 11:07 PM

Minor Periods

4:13 PM - 5:43 PM
12:05 AM - 1:35 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:15 AM
Sun Transit: 1:23 PM
Sunset: 7:31 PM
Daylight: 12 hrs 15 mins

Moonrise: 4:43 PM
Moon Transit: 9:07 PM
Moonset: 12:35 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

9:14 AM - 11:44 AM
8:37 PM - 11:07 PM

Minor Periods

4:13 PM - 5:43 PM
12:05 AM - 1:35 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:16 AM
Sun Transit: 1:23 PM
Sunset: 7:29 PM
Daylight: 12 hrs 13 mins

Moonrise: 5:15 PM
Moon Transit: 9:55 PM
Moonset: 1:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

10:03 AM - 12:33 AM
9:25 PM - 11:55 PM

Minor Periods

4:45 PM - 6:15 PM
1:07 AM - 2:37 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:16 AM
Sun Transit: 1:23 PM
Sunset: 7:29 PM
Daylight: 12 hrs 13 mins

Moonrise: 5:15 PM
Moon Transit: 9:55 PM
Moonset: 1:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

10:03 AM - 12:33 AM
9:25 PM - 11:55 PM

Minor Periods

4:45 PM - 6:15 PM
1:07 AM - 2:37 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:17 AM
Sun Transit: 1:22 PM
Sunset: 7:27 PM
Daylight: 12 hrs 10 mins

Moonrise: 5:42 PM
Moon Transit: 10:41 PM
Moonset: 2:43 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

10:50 AM - 1:20 PM
12:00 AM - 12:00 AM

Minor Periods

5:12 PM - 6:42 PM
2:13 AM - 3:43 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:17 AM
Sun Transit: 1:22 PM
Sunset: 7:27 PM
Daylight: 12 hrs 10 mins

Moonrise: 5:42 PM
Moon Transit: 10:41 PM
Moonset: 2:43 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

10:50 AM - 1:20 PM
12:00 AM - 12:00 AM

Minor Periods

5:12 PM - 6:42 PM
2:13 AM - 3:43 AM

Action Rating: 2 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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