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

Current Water Temperature

32.5°F

Measurement Time: Saturday, January 31, 2026, 9:45 AM EST

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

19.8°F
Overcast
Overcast
9.9°F
14.9°F
45%
N 8.1 mph
9.8 mph
4.9°F
10.6°F
0 in
0%
9 mi
1026 mbar
0.8

Five Day Weather Forecast

Overcast
Sat
H: 17°F
L: 2°F
Sunny
Sun
H: 27°F
L: 6°F
Mist
Mon
H: 18°F
L: 13°F
Partly Cloudy
Tue
H: 23°F
L: 13°F
Light freezing rain
Wed
H: 25°F
L: 8°F

Air Quality

AQI: 1 - Good
PM2.5: 1.95 μg/m3
PM10: 2.15 μg/m3
Carbon Monoxide: 174.85 μg/m3
Nitrogen Dioxide: 4.05 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 84 μg/m3

Astronomical

Sunrise: 7:54 AM
Sun Transit: 12:48 AM
Sunset: 5:43 PM
Daylight: 9 hrs 48 mins
Moonrise: 4:13 PM
Moon Transit: 12:00 AM
Moonset: 7:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:06 AM - 2:36 PM

Minor Periods

3:43 PM - 5:13 PM
6:53 AM - 8:23 AM

Action Rating: 4 out of 5

Saturday, January 31, 2026

Weather Forecast

Overcast
17.2°F
1.9°F
9.3°F
75%
0 in
0%
16%
9.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.66 μg/m3
PM10: 1.84 μg/m3
Carbon Monoxide: 164.53 μg/m3
Nitrogen Dioxide: 1.91 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 78.16 μg/m3

Astronomical

Sunrise: 7:54 AM
Sun Transit: 12:48 AM
Sunset: 5:43 PM
Daylight: 9 hrs 48 mins
Moonrise: 4:13 PM
Moon Transit: 12:00 AM
Moonset: 7:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:06 AM - 2:36 PM

Minor Periods

3:43 PM - 5:13 PM
6:53 AM - 8:23 AM

Action Rating: 4 out of 5

Sunday, February 1, 2026

Weather Forecast

Sunny
27°F
5.9°F
14.6°F
67%
0 in
0%
0%
4.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 2.21 μg/m3
PM10: 2.27 μg/m3
Carbon Monoxide: 168.21 μg/m3
Nitrogen Dioxide: 3.21 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 81.04 μg/m3

Astronomical

Sunrise: 7:53 AM
Sun Transit: 12:48 AM
Sunset: 5:44 PM
Daylight: 9 hrs 51 mins
Moonrise: 5:34 PM
Moon Transit: 12:13 AM
Moonset: 7:59 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:03 PM - 3:33 PM

Minor Periods

5:04 PM - 6:34 PM
7:29 AM - 8:59 AM

Action Rating: 4 out of 5

Monday, February 2, 2026

Weather Forecast

Mist
18.2°F
12.7°F
15.6°F
91%
0 in
0%
0%
9.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.59 μg/m3
PM10: 4.64 μg/m3
Carbon Monoxide: 207.49 μg/m3
Nitrogen Dioxide: 7.01 μg/m3
Sulphur Dioxide: 1.92 μg/m3
Ozone: 68.76 μg/m3

Astronomical

Sunrise: 7:52 AM
Sun Transit: 12:48 AM
Sunset: 5:46 PM
Daylight: 9 hrs 54 mins
Moonrise: 6:52 PM
Moon Transit: 1:08 AM
Moonset: 8:27 AM
Moon Phase: Full
Moon Illumination: 99.4%

Best Times for Fishing or Hunting

Major Periods

12:38 AM - 3:08 AM
1:55 PM - 4:25 PM

Minor Periods

6:22 PM - 7:52 PM
7:57 AM - 9:27 AM

Action Rating: 4 out of 5

Tuesday, February 3, 2026

Weather Forecast

Partly Cloudy
22.6°F
12.5°F
16.9°F
81%
0 in
0%
8%
10.1 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 1.27 μg/m3
PM10: 1.29 μg/m3
Carbon Monoxide: 165.74 μg/m3
Nitrogen Dioxide: 2.05 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 7:51 AM
Sun Transit: 12:48 AM
Sunset: 5:47 PM
Daylight: 9 hrs 56 mins
Moonrise: 8:07 PM
Moon Transit: 1:58 AM
Moonset: 8:49 AM
Moon Phase: Full
Moon Illumination: 96.3%

Best Times for Fishing or Hunting

Major Periods

1:28 AM - 3:58 AM
2:43 PM - 5:13 PM

Minor Periods

7:37 PM - 9:07 PM
8:19 AM - 9:49 AM

Action Rating: 4 out of 5

Wednesday, February 4, 2026

Weather Forecast

Light freezing rain
24.6°F
8.4°F
15.5°F
87%
0 in
79%
19%
8.7 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.83 μg/m3
PM10: 1.87 μg/m3
Carbon Monoxide: 180.17 μg/m3
Nitrogen Dioxide: 2.89 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 73.69 μg/m3

Astronomical

Sunrise: 7:50 AM
Sun Transit: 12:48 AM
Sunset: 5:48 PM
Daylight: 9 hrs 59 mins
Moonrise: 9:17 PM
Moon Transit: 2:44 AM
Moonset: 9:08 AM
Moon Phase: Full
Moon Illumination: 90.9%

Best Times for Fishing or Hunting

Major Periods

2:14 AM - 4:44 AM
3:28 PM - 5:58 PM

Minor Periods

8:47 PM - 10:17 PM
8:38 AM - 10:08 AM

Action Rating: 4 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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