Water Temperature of the Au Sable River in South Branch, MI

Current Water Temperature

67.1°F

Measurement Time: Saturday, September 12, 2026, 3:45 AM EDT

Temperature Locations

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Local Points of Interest

Loud Dam Pond

Au Sable River

Station Name: AU SABLE RIVER NEAR SOUTH BRANCH, MI
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 722 feet

Nearest Address:
4980 Loud Dam Rd
South Branch, MI 48737
Iosco County

GPS Coordinates: 44.46334886, -83.7213714

Nearby Water Temperatures

Au Sable River, Glennie, MI (2.4 mi)
Au Sable River, Oscoda, MI (7.4 mi)
Au Sable River, Glennie, MI (7.8 mi)
Au Sable River, Curran, MI (11.8 mi)
Au Sable River, Oscoda, MI (14.3 mi)
Au Sable River, Mio, MI (24.3 mi)
Rifle River, Sterling, MI (30.8 mi)
Au Sable River, Luzerne, MI (31.7 mi)
South Branch Au Sable River, Grayling, MI (37.6 mi)
North Branch Au Sable River, Grayling, MI (38.6 mi)
Lake Huron, Alpena, MI (42.5 mi)
Thunder Bay River, Alpena, MI (43.8 mi)
Manistee River, Grayling, MI (57.6 mi)
Lake Huron, Port Austin, MI (65.7 mi)
Tittabawassee River, Freeland, MI (67.9 mi)

Weather for South Branch, Michigan

Current Weather

62°F

Conditions: Partly Sunny

Humidity: 87%

Wind: SW 5 mph

Dew Point: 58°F

Weather Forecast

Today
83°F - Partly Sunny then Slight Chance Rain Showers

Tonight
54°F - Slight Chance Rain Showers then Partly Cloudy

Sunday
69°F - Partly Sunny then Slight Chance Rain Showers

Sunday Night
43°F - Slight Chance Rain Showers then Partly Cloudy

Monday
69°F - Sunny

Monday Night
55°F - Mostly Cloudy then Showers And Thunderstorms Likely

Tuesday
75°F - Showers And Thunderstorms Likely

Tuesday Night
51°F - Mostly Cloudy

Wednesday
71°F - Chance Rain Showers

Wednesday Night
51°F - Chance Rain Showers

Thursday
72°F - Chance Rain Showers

Thursday Night
48°F - Partly Cloudy

Friday
72°F - Mostly Sunny

Friday Night
48°F - Slight Chance Rain Showers

Astronomical

Sunrise: 7:10 AM
Sun Transit: 1:31 PM
Sunset: 7:51 PM
Daylight: 12 hrs 41 mins

Moonrise: 8:54 AM
Moon Transit: 2:40 PM
Moonset: 8:16 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

2:40 AM - 5:10 AM
2:10 PM - 4:40 PM

Minor Periods

7:46 PM - 9:16 PM
8:24 AM - 9:54 AM

Action Rating: 4 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: 7:10 AM
Sun Transit: 1:31 PM
Sunset: 7:51 PM
Daylight: 12 hrs 41 mins

Moonrise: 8:54 AM
Moon Transit: 2:40 PM
Moonset: 8:16 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

2:40 AM - 5:10 AM
2:10 PM - 4:40 PM

Minor Periods

7:46 PM - 9:16 PM
8:24 AM - 9:54 AM

Action Rating: 4 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: 7:10 AM
Sun Transit: 1:31 PM
Sunset: 7:51 PM
Daylight: 12 hrs 41 mins

Moonrise: 8:54 AM
Moon Transit: 2:40 PM
Moonset: 8:16 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

2:40 AM - 5:10 AM
2:10 PM - 4:40 PM

Minor Periods

7:46 PM - 9:16 PM
8:24 AM - 9:54 AM

Action Rating: 4 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: 1:30 PM
Sunset: 7:49 PM
Daylight: 12 hrs 37 mins

Moonrise: 10:05 AM
Moon Transit: 3:25 PM
Moonset: 8:36 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

3:25 AM - 5:55 AM
2:55 PM - 5:25 PM

Minor Periods

8:06 PM - 9:36 PM
9:35 AM - 11:05 AM

Action Rating: 4 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: 1:30 PM
Sunset: 7:49 PM
Daylight: 12 hrs 37 mins

Moonrise: 10:05 AM
Moon Transit: 3:25 PM
Moonset: 8:36 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

3:25 AM - 5:55 AM
2:55 PM - 5:25 PM

Minor Periods

8:06 PM - 9:36 PM
9:35 AM - 11:05 AM

Action Rating: 4 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: 1:30 PM
Sunset: 7:47 PM
Daylight: 12 hrs 34 mins

Moonrise: 11:15 AM
Moon Transit: 4:11 PM
Moonset: 9:00 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

4:10 AM - 6:40 AM
3:41 PM - 6:11 PM

Minor Periods

8:30 PM - 10:00 PM
10:45 AM - 12:15 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: 7:13 AM
Sun Transit: 1:30 PM
Sunset: 7:47 PM
Daylight: 12 hrs 34 mins

Moonrise: 11:15 AM
Moon Transit: 4:11 PM
Moonset: 9:00 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

4:10 AM - 6:40 AM
3:41 PM - 6:11 PM

Minor Periods

8:30 PM - 10:00 PM
10:45 AM - 12:15 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: 7:14 AM
Sun Transit: 1:30 PM
Sunset: 7:45 PM
Daylight: 12 hrs 31 mins

Moonrise: 12:25 AM
Moon Transit: 5:00 PM
Moonset: 9:27 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
4:30 PM - 7:00 PM

Minor Periods

8:57 PM - 10:27 PM
11:55 AM - 1:25 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: 1:30 PM
Sunset: 7:45 PM
Daylight: 12 hrs 31 mins

Moonrise: 12:25 AM
Moon Transit: 5:00 PM
Moonset: 9:27 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
4:30 PM - 7:00 PM

Minor Periods

8:57 PM - 10:27 PM
11:55 AM - 1:25 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: 7:15 AM
Sun Transit: 1:29 PM
Sunset: 7:43 PM
Daylight: 12 hrs 28 mins

Moonrise: 1:32 PM
Moon Transit: 5:48 PM
Moonset: 10:01 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

5:45 AM - 8:15 AM
5:18 PM - 7:48 PM

Minor Periods

9:31 PM - 11:01 PM
1:02 PM - 2:32 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: 7:15 AM
Sun Transit: 1:29 PM
Sunset: 7:43 PM
Daylight: 12 hrs 28 mins

Moonrise: 1:32 PM
Moon Transit: 5:48 PM
Moonset: 10:01 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

5:45 AM - 8:15 AM
5:18 PM - 7:48 PM

Minor Periods

9:31 PM - 11:01 PM
1:02 PM - 2:32 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: 7:16 AM
Sun Transit: 1:29 PM
Sunset: 7:41 PM
Daylight: 12 hrs 25 mins

Moonrise: 2:35 PM
Moon Transit: 6:39 PM
Moonset: 10:43 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

6:36 AM - 9:06 AM
6:09 PM - 8:39 PM

Minor Periods

10:13 PM - 11:43 PM
2:05 PM - 3:35 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: 7:16 AM
Sun Transit: 1:29 PM
Sunset: 7:41 PM
Daylight: 12 hrs 25 mins

Moonrise: 2:35 PM
Moon Transit: 6:39 PM
Moonset: 10:43 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

6:36 AM - 9:06 AM
6:09 PM - 8:39 PM

Minor Periods

10:13 PM - 11:43 PM
2:05 PM - 3:35 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: 7:17 AM
Sun Transit: 1:28 PM
Sunset: 7:39 PM
Daylight: 12 hrs 22 mins

Moonrise: 3:30 PM
Moon Transit: 7:31 PM
Moonset: 11:33 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

7:27 AM - 9:57 AM
7:01 PM - 9:31 PM

Minor Periods

12:00 AM - 12:00 AM
3:00 PM - 4:30 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: 7:17 AM
Sun Transit: 1:28 PM
Sunset: 7:39 PM
Daylight: 12 hrs 22 mins

Moonrise: 3:30 PM
Moon Transit: 7:31 PM
Moonset: 11:33 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

7:27 AM - 9:57 AM
7:01 PM - 9:31 PM

Minor Periods

12:00 AM - 12:00 AM
3:00 PM - 4:30 PM

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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