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

Current Water Temperature

39.6°F

Measurement Time: Thursday, April 2, 2026, 11:45 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

36.6°F
Light rain
Light rain
29.1°F
36.6°F
96%
ESE 9.8 mph
14.3 mph
29.1°F
35.7°F
0.09 in
100%
6 mi
1014 mbar
0.5

Five Day Weather Forecast

Heavy rain
Thu
H: 37°F
L: 29°F
Patchy rain nearby
Fri
H: 56°F
L: 35°F
Heavy rain
Sat
H: 38°F
L: 32°F
Overcast
Sun
H: 35°F
L: 30°F
Light snow
Mon
H: 41°F
L: 29°F

Air Quality

AQI: 1 - Good
PM2.5: 3.95 μg/m3
PM10: 4.05 μg/m3
Carbon Monoxide: 217.85 μg/m3
Nitrogen Dioxide: 9.05 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 58 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 1:38 PM
Sunset: 8:04 PM
Daylight: 12 hrs 50 mins
Moonrise: 9:06 PM
Moon Transit: 1:39 AM
Moonset: 7:10 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

1:09 AM - 3:39 AM
2:23 PM - 4:53 PM

Minor Periods

8:36 PM - 10:06 PM
6:40 AM - 8:10 AM

Action Rating: 3 out of 5

Winter Weather Advisory issued April 2 at 2:53AM EDT until April 2 at 2:00PM EDT by NWS Gaylord MI

Effective: Thu April 2, 2026, 2:53 AM
Expires: Thu April 2, 2026, 2:00 PM

* WHAT...Freezing rain expected. Total ice accumulations around one tenth to two tenths of an inch. * WHERE...Arenac, Gladwin, Iosco, Ogemaw, and Roscommon Counties. * WHEN...From 6 AM this morning to 2 PM EDT this afternoon. * IMPACTS...Difficult travel conditions are possible. The hazardous conditions could impact the morning commute. * ADDITIONAL DETAILS...Freezing rain is expected to arrive this morning. Temperatures are expected to warm above freezing by early afternoon resulting in a transition to plain rain.

Slow down and use caution while traveling. Prepare for possible power outages.


Winter Weather Advisory issued April 2 at 2:53AM EDT until April 2 at 6:00PM EDT by NWS Gaylord MI

Effective: Thu April 2, 2026, 2:53 AM
Expires: Thu April 2, 2026, 3:00 PM

* WHAT...Mixed precipitation expected. Total snow accumulations up to one inch and ice accumulations of one tenth to one quarter of an inch. Winds gusting as high as 35 mph. * WHERE...A portion of Northern Lower Michigan. * WHEN...From 8 AM this morning to 6 PM EDT this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute.

Slow down and use caution while traveling. Prepare for possible power outages.


Winter Weather Advisory issued April 2 at 10:23AM EDT until April 2 at 6:00PM EDT by NWS Gaylord MI

Effective: Thu April 2, 2026, 10:23 AM
Expires: Thu April 2, 2026, 6:00 PM

* WHAT...Mixed precipitation. Additional snow accumulations up to one inch and ice accumulations of one tenth to one quarter of an inch. Winds gusting as high as 40 mph. * WHERE...A portion of Northern Lower Michigan. * WHEN...Until 6 PM EDT this evening. * IMPACTS...Plan on slippery road conditions.

Slow down and use caution while traveling. Prepare for possible power outages.


Flood Warning issued April 2 at 10:50AM EDT until April 5 at 5:00PM EDT by NWS Gaylord MI

Effective: Thu April 2, 2026, 10:50 AM
Expires: Fri April 3, 2026, 11:00 AM

...The National Weather Service in Gaylord MI has issued a Flood Warning for the following rivers in Michigan... Rifle River near Sterling affecting Arenac County. For the Rifle River...including Sterling...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Rifle River near Sterling. * WHEN...From late tonight to Sunday afternoon. * IMPACTS...At 9.0 feet, High water begins to impact campground at White's Canoe Livery at Melita Road bridge. * ADDITIONAL DETAILS... - At 10:30 AM EDT Thursday the stage was 5.1 feet. - Bankfull stage is 4.5 feet. - Forecast...The river is expected to rise above flood stage late tonight to a crest of 8.8 feet early Saturday morning. It will then fall below flood stage late Sunday morning. - Flood stage is 6.0 feet. - Flood History...This crest compares to a previous crest of 8.8 feet on 03/18/1942. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued by Friday morning at 1100 AM EDT.


Winter Weather Advisory issued April 2 at 2:53AM EDT until April 2 at 6:00PM EDT by NWS Gaylord MI

Effective: Thu April 2, 2026, 2:53 AM
Expires: Thu April 2, 2026, 3:00 PM

* WHAT...Mixed precipitation expected. Total snow and sleet accumulations up to one inch and ice accumulations between one tenth to one quarter of an inch. Winds gusting as high as 35 mph. * WHERE...Alpena, Cheboygan, Emmet, Montmorency, and Presque Isle Counties. * WHEN...From 10 AM this morning to 6 PM EDT this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Thursday evening commute. * ADDITIONAL DETAILS...An initial brief mix of snow/sleet/freezing rain is expected to change to all freezing rain later this morning. Temperatures are expected to warm above freezing from south to north through the afternoon.

Slow down and use caution while traveling. Prepare for possible power outages.


Thursday, April 2, 2026

Weather Forecast

Heavy rain
37°F
28.8°F
33.8°F
90%
1.42 in
86%
9%
15.7 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.68 μg/m3
PM10: 3.16 μg/m3
Carbon Monoxide: 172.53 μg/m3
Nitrogen Dioxide: 3.34 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 84.92 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 1:38 PM
Sunset: 8:04 PM
Daylight: 12 hrs 50 mins
Moonrise: 9:06 PM
Moon Transit: 1:39 AM
Moonset: 7:10 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

1:09 AM - 3:39 AM
2:23 PM - 4:53 PM

Minor Periods

8:36 PM - 10:06 PM
6:40 AM - 8:10 AM

Action Rating: 3 out of 5

Friday, April 3, 2026

Weather Forecast

Patchy rain nearby
55.6°F
34.6°F
45.7°F
82%
0.06 in
87%
0%
18.1 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 2.7 μg/m3
PM10: 2.81 μg/m3
Carbon Monoxide: 170.29 μg/m3
Nitrogen Dioxide: 3.31 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 77.68 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 1:38 PM
Sunset: 8:05 PM
Daylight: 12 hrs 53 mins
Moonrise: 10:14 PM
Moon Transit: 2:22 AM
Moonset: 7:29 AM
Moon Phase: Full
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

1:52 AM - 4:22 AM
3:06 PM - 5:36 PM

Minor Periods

9:44 PM - 11:14 PM
6:59 AM - 8:29 AM

Action Rating: 4 out of 5

Saturday, April 4, 2026

Weather Forecast

Heavy rain
38.1°F
31.6°F
34.9°F
93%
1.53 in
84%
16%
15 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.98 μg/m3
PM10: 2.04 μg/m3
Carbon Monoxide: 173.89 μg/m3
Nitrogen Dioxide: 3.63 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 75.6 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 1:37 PM
Sunset: 8:06 PM
Daylight: 12 hrs 56 mins
Moonrise: 11:21 PM
Moon Transit: 3:07 AM
Moonset: 7:52 AM
Moon Phase: Full
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
3:52 PM - 6:22 PM

Minor Periods

12:00 AM - 12:00 AM
7:22 AM - 8:52 AM

Action Rating: 4 out of 5

Sunday, April 5, 2026

Weather Forecast

Overcast
35.1°F
30.2°F
33.9°F
78%
0 in
0%
0%
16.1 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 2.13 μg/m3
PM10: 2.22 μg/m3
Carbon Monoxide: 159.14 μg/m3
Nitrogen Dioxide: 2.03 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 87.92 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 1:37 PM
Sunset: 8:07 PM
Daylight: 12 hrs 59 mins
Moonrise: 12:21 AM
Moon Transit: 3:53 AM
Moonset: 8:19 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.9%

Best Times for Fishing or Hunting

Major Periods

3:23 AM - 5:53 AM
4:39 PM - 7:09 PM

Minor Periods

7:49 AM - 9:19 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, April 6, 2026

Weather Forecast

Light snow
40.5°F
28.7°F
33.4°F
72%
0.05 in
84%
16%
15.4 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 3.13 μg/m3
PM10: 4.27 μg/m3
Carbon Monoxide: 148.31 μg/m3
Nitrogen Dioxide: 1.84 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 100.08 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 1:37 PM
Sunset: 8:09 PM
Daylight: 13 hrs 2 mins
Moonrise: 12:28 AM
Moon Transit: 4:42 AM
Moonset: 8:53 AM
Moon Phase: Waning Gibbous
Moon Illumination: 74.7%

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
5:30 PM - 8:00 PM

Minor Periods

8:23 AM - 9:53 AM
12:00 AM - 12:00 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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