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

Current Water Temperature

37.8°F

Measurement Time: Friday, March 13, 2026, 10:45 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

35.6°F
Light rain
Light rain
28.3°F
35.3°F
93%
WSW 9.6 mph
12.8 mph
29.3°F
35.3°F
0.02 in
100%
8 mi
989 mbar
0.3

Five Day Weather Forecast

Light snow
Fri
H: 36°F
L: 23°F
Patchy moderate snow
Sat
H: 37°F
L: 21°F
Moderate or heavy snow showers
Sun
H: 38°F
L: 28°F
Moderate or heavy snow showers
Mon
H: 38°F
L: 16°F
Light snow
Tue
H: 20°F
L: 11°F

Air Quality

AQI: 1 - Good
PM2.5: 1.55 μg/m3
PM10: 1.65 μg/m3
Carbon Monoxide: 184.85 μg/m3
Nitrogen Dioxide: 5.25 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 87 μg/m3

Astronomical

Sunrise: 7:51 AM
Sun Transit: 1:44 PM
Sunset: 7:38 PM
Daylight: 11 hrs 48 mins
Moonrise: 5:17 AM
Moon Transit: 9:25 AM
Moonset: 1:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 16.4%

Best Times for Fishing or Hunting

Major Periods

8:55 AM - 11:25 AM
12:00 AM - 12:00 AM

Minor Periods

1:08 PM - 2:38 PM
4:47 AM - 6:17 AM

Action Rating: 2 out of 5

Winter Storm Watch issued March 13 at 3:42AM EDT until March 16 at 8:00PM EDT by NWS Gaylord MI

Effective: Fri March 13, 2026, 3:42 AM
Expires: Fri March 13, 2026, 3:45 PM

* WHAT...For the Winter Weather Advisory, snow and blowing snow. Additional snow accumulations between 3 and 6 inches. Winds gusting as high as 40 mph. For the Winter Storm Watch, heavy mixed precipitation possible. Total snow accumulations between 6 and 12 inches and ice accumulations up to one quarter of an inch possible. Winds could gust as high as 40 mph. * WHERE...A portion of Northern Lower Michigan. * WHEN...For the Winter Weather Advisory, until 2 PM EDT this afternoon. For the Winter Storm Watch, from late Saturday night through Monday evening. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Friday morning and evening commutes.

Monitor the latest forecasts for updates on this situation. Slow down and use caution while traveling.


Winter Weather Advisory issued March 13 at 3:42AM EDT until March 13 at 2:00PM EDT by NWS Gaylord MI

Effective: Fri March 13, 2026, 3:42 AM
Expires: Fri March 13, 2026, 3:45 PM

* WHAT...For the Winter Weather Advisory, snow and blowing snow. Additional snow accumulations between 3 and 6 inches. Winds gusting as high as 40 mph. For the Winter Storm Watch, heavy mixed precipitation possible. Total snow accumulations between 6 and 12 inches and ice accumulations up to one quarter of an inch possible. Winds could gust as high as 40 mph. * WHERE...A portion of Northern Lower Michigan. * WHEN...For the Winter Weather Advisory, until 2 PM EDT this afternoon. For the Winter Storm Watch, from late Saturday night through Monday evening. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Friday morning and evening commutes.

Monitor the latest forecasts for updates on this situation. Slow down and use caution while traveling.


Winter Storm Watch issued March 13 at 9:45AM EDT until March 16 at 8:00PM EDT by NWS Gaylord MI

Effective: Fri March 13, 2026, 9:45 AM
Expires: Fri March 13, 2026, 9:45 PM

* WHAT...For the Winter Weather Advisory, snow and blowing snow. Additional snow accumulations between 2 and 5 inches. Winds gusting as high as 40 mph. For the Winter Storm Watch, heavy mixed precipitation possible. Total snow accumulations between 6 and 12 inches and ice accumulations up to one quarter of an inch possible. Winds could gust as high as 40 mph. * WHERE...A portion of Northern Lower Michigan. * WHEN...For the Winter Weather Advisory, until 2 AM EDT Saturday. For the Winter Storm Watch, from late Saturday night through Monday evening. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the Friday evening and Monday morning commutes.

Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation.


Winter Weather Advisory issued March 13 at 9:45AM EDT until March 14 at 2:00AM EDT by NWS Gaylord MI

Effective: Fri March 13, 2026, 9:45 AM
Expires: Fri March 13, 2026, 9:45 PM

* WHAT...For the Winter Weather Advisory, snow and blowing snow. Additional snow accumulations between 2 and 5 inches. Winds gusting as high as 40 mph. For the Winter Storm Watch, heavy mixed precipitation possible. Total snow accumulations between 6 and 12 inches and ice accumulations up to one quarter of an inch possible. Winds could gust as high as 40 mph. * WHERE...A portion of Northern Lower Michigan. * WHEN...For the Winter Weather Advisory, until 2 AM EDT Saturday. For the Winter Storm Watch, from late Saturday night through Monday evening. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the Friday evening and Monday morning commutes.

Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation.


Winter Storm Watch issued March 13 at 3:42AM EDT until March 16 at 8:00PM EDT by NWS Gaylord MI

Effective: Fri March 13, 2026, 3:42 AM
Expires: Fri March 13, 2026, 3:45 PM

* WHAT...For the Winter Weather Advisory, snow and blowing snow. Additional snow accumulations between 4 and 7 inches. Winds gusting as high as 45 mph. For the Winter Storm Watch, heavy mixed precipitation possible. Total snow accumulations between 8 and 16 inches and ice accumulations of around one quarter of an inch possible. Winds could gust as high as 35 mph. * WHERE...Alpena and Montmorency Counties. * WHEN...For the Winter Weather Advisory, until 8 PM EDT this evening. For the Winter Storm Watch, from late Saturday night through Monday evening. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Friday morning and evening commutes. Gusty winds could bring down tree branches.

Monitor the latest forecasts for updates on this situation. Slow down and use caution while traveling.
Friday, March 13, 2026

Weather Forecast

Light snow
36.1°F
22.8°F
30.6°F
88%
0.57 in
82%
35%
21.7 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 3.43 μg/m3
PM10: 4.28 μg/m3
Carbon Monoxide: 174.69 μg/m3
Nitrogen Dioxide: 4.47 μg/m3
Sulphur Dioxide: 1.82 μg/m3
Ozone: 83.88 μg/m3

Astronomical

Sunrise: 7:51 AM
Sun Transit: 1:44 PM
Sunset: 7:38 PM
Daylight: 11 hrs 48 mins
Moonrise: 5:17 AM
Moon Transit: 9:25 AM
Moonset: 1:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 16.4%

Best Times for Fishing or Hunting

Major Periods

8:55 AM - 11:25 AM
12:00 AM - 12:00 AM

Minor Periods

1:08 PM - 2:38 PM
4:47 AM - 6:17 AM

Action Rating: 2 out of 5

Saturday, March 14, 2026

Weather Forecast

Patchy moderate snow
36.7°F
21.4°F
28.7°F
68%
0.02 in
81%
3%
17 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 2.12 μg/m3
PM10: 2.66 μg/m3
Carbon Monoxide: 178.85 μg/m3
Nitrogen Dioxide: 2.02 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 97.68 μg/m3

Astronomical

Sunrise: 7:49 AM
Sun Transit: 1:44 PM
Sunset: 7:40 PM
Daylight: 11 hrs 51 mins
Moonrise: 5:52 AM
Moon Transit: 10:15 AM
Moonset: 2:46 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:45 AM - 12:15 AM

Minor Periods

2:16 PM - 3:46 PM
5:22 AM - 6:52 AM

Action Rating: 2 out of 5

Sunday, March 15, 2026

Weather Forecast

Moderate or heavy snow showers
38.2°F
27.7°F
32.6°F
93%
2.57 in
88%
36%
16.3 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 3.5 μg/m3
PM10: 3.98 μg/m3
Carbon Monoxide: 181.85 μg/m3
Nitrogen Dioxide: 5.04 μg/m3
Sulphur Dioxide: 1.73 μg/m3
Ozone: 92.2 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 1:43 PM
Sunset: 7:41 PM
Daylight: 11 hrs 54 mins
Moonrise: 6:21 AM
Moon Transit: 11:04 AM
Moonset: 3:57 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:34 AM - 1:04 PM

Minor Periods

3:27 PM - 4:57 PM
5:51 AM - 7:21 AM

Action Rating: 3 out of 5

Monday, March 16, 2026

Weather Forecast

Moderate or heavy snow showers
38.2°F
15.6°F
32.1°F
83%
2.32 in
77%
32%
21.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.21 μg/m3
PM10: 1.25 μg/m3
Carbon Monoxide: 172.38 μg/m3
Nitrogen Dioxide: 2.63 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 91.16 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:00 AM
Sunset: 7:42 PM
Daylight: 11 hrs 57 mins
Moonrise: 6:45 AM
Moon Transit: 11:52 AM
Moonset: 5:10 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:22 AM - 1:52 PM

Minor Periods

4:40 PM - 6:10 PM
6:15 AM - 7:45 AM

Action Rating: 3 out of 5

Tuesday, March 17, 2026

Weather Forecast

Light snow
19.6°F
11°F
14.7°F
62%
0.03 in
60%
58%
15.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.44 μg/m3
PM10: 1.62 μg/m3
Carbon Monoxide: 170.93 μg/m3
Nitrogen Dioxide: 1.17 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 87 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 12:00 AM
Sunset: 7:44 PM
Daylight: 12 hrs mins
Moonrise: 7:06 AM
Moon Transit: 12:38 AM
Moonset: 6:24 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 AM
12:08 AM - 2:38 PM

Minor Periods

5:54 PM - 7:24 PM
6:36 AM - 8:06 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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