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

Current Water Temperature

69.8°F

Measurement Time: Saturday, July 12, 2025, 4:36 AM EDT

Temperature Locations

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Local Points of Interest

Russell Island; Walpole Island

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St. Clair River

Station Name: Algonac
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 571 feet / 174 meters

Sensor Depth: -6.3 feet / -1.9 meters

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 (102.0 mi)
Lake Huron, Port Austin, MI (115.0 mi)

Weather for Algonac, Michigan

Current Weather

74.1°F
Mist
Conditions: Mist
Humidity: 91%
Feels Like: 78.4°F
Wind: SSW 5.8 mph
Wind Gusts: 12.2 mph
Pressure: 29.88 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Moderate rain
Sat
H: 88°F
L: 73°F
Moderate rain
Sun
H: 84°F
L: 70°F
Sunny
Mon
H: 87°F
L: 71°F
Sunny
Tue
H: 83°F
L: 68°F
Moderate rain
Wed
H: 82°F
L: 66°F

Air Quality

PM2.5: 18.87 μg/m3
PM10: 19.24 μg/m3
Carbon Monoxide: 397.75 μg/m3
Nitrogen Dioxide: 16.84 μg/m3
Sulphur Dioxide: 5.74 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 1:35 PM
Sunset: 9:07 PM
Daylight: 15 hrs 4 mins
Moonrise: 10:42 PM
Moon Transit: 2:51 AM
Moonset: 7:38 AM
Moon Phase: Full
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

2:21 AM - 4:51 AM
3:48 PM - 6:18 PM

Minor Periods

10:12 PM - 11:42 PM
7:08 AM - 8:38 AM

Action Rating: 3 out of 5

Saturday, July 12, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 79.4°F
Average Humidity: 83%
Chance of Rain: 86%
Wind: 17.4 mph
UV Index: 2.7

Air Quality

AQI: 2 - Moderate
PM2.5: 19.51 μg/m3
PM10: 20.22 μg/m3
Carbon Monoxide: 415.14 μg/m3
Nitrogen Dioxide: 13.58 μg/m3
Sulphur Dioxide: 5.74 μg/m3
Ozone: 124.2 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 1:35 PM
Sunset: 9:07 PM
Daylight: 15 hrs 4 mins
Moonrise: 10:42 PM
Moon Transit: 2:51 AM
Moonset: 7:38 AM
Moon Phase: Full
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

2:21 AM - 4:51 AM
3:48 PM - 6:18 PM

Minor Periods

10:12 PM - 11:42 PM
7:08 AM - 8:38 AM

Action Rating: 3 out of 5

Sunday, July 13, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 77.9°F
Average Humidity: 77%
Chance of Rain: 88%
Wind: 12.1 mph
UV Index: 2.4

Air Quality

AQI: 1 - Good
PM2.5: 12 μg/m3
PM10: 12.57 μg/m3
Carbon Monoxide: 332.78 μg/m3
Nitrogen Dioxide: 12.99 μg/m3
Sulphur Dioxide: 3.36 μg/m3
Ozone: 101.72 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:35 PM
Sunset: 9:07 PM
Daylight: 15 hrs 2 mins
Moonrise: 11:06 PM
Moon Transit: 3:41 AM
Moonset: 8:51 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

3:11 AM - 5:41 AM
4:37 PM - 7:07 PM

Minor Periods

12:00 AM - 12:00 AM
8:21 AM - 9:51 AM

Action Rating: 3 out of 5

Monday, July 14, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 78.6°F
Average Humidity: 65%
Chance of Rain: 0%
Wind: 8.1 mph
UV Index: 2

Air Quality

AQI: 2 - Moderate
PM2.5: 22.94 μg/m3
PM10: 23.09 μg/m3
Carbon Monoxide: 371.41 μg/m3
Nitrogen Dioxide: 18.94 μg/m3
Sulphur Dioxide: 1.7 μg/m3
Ozone: 101.64 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:36 PM
Sunset: 9:06 PM
Daylight: 15 hrs 1 mins
Moonrise: 12:06 AM
Moon Transit: 4:29 AM
Moonset: 10:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

3:59 AM - 6:29 AM
5:24 PM - 7:54 PM

Minor Periods

9:33 AM - 11:03 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, July 15, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 75.7°F
Average Humidity: 76%
Chance of Rain: 0%
Wind: 8.7 mph
UV Index: 2

Air Quality

AQI: 2 - Moderate
PM2.5: 25.72 μg/m3
PM10: 25.91 μg/m3
Carbon Monoxide: 691.33 μg/m3
Nitrogen Dioxide: 29.42 μg/m3
Sulphur Dioxide: 2.19 μg/m3
Ozone: 97.23 μg/m3

Astronomical

Sunrise: 6:06 AM
Sun Transit: 1:36 PM
Sunset: 9:06 PM
Daylight: 14 hrs 59 mins
Moonrise: 12:28 AM
Moon Transit: 12:00 AM
Moonset: 11:16 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

10:46 AM - 12:16 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 16, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 72.3°F
Average Humidity: 83%
Chance of Rain: 83%
Wind: 11.4 mph
UV Index: 0.1

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: 6:07 AM
Sun Transit: 1:36 PM
Sunset: 9:05 PM
Daylight: 14 hrs 58 mins
Moonrise: 12:48 AM
Moon Transit: 1:15 AM
Moonset: 12:29 AM
Moon Phase: Waning Gibbous
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 AM
12:45 AM - 3:15 AM

Minor Periods

11:59 AM - 1:29 PM
12:00 AM - 12:00 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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