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

Current Water Temperature

32.5°F

Measurement Time: Tuesday, February 17, 2026, 3:45 PM 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

28.9°F
Freezing fog
Freezing fog
20.6°F
32°F
100%
E 8.7 mph
12.3 mph
24.3°F
30.7°F
0 in
60%
0 mi
1016 mbar
0

Five Day Weather Forecast

Cloudy
Tue
H: 41°F
L: 26°F
Moderate or heavy snow showers
Wed
H: 32°F
L: 30°F
Fog
Thu
H: 33°F
L: 31°F
Moderate or heavy freezing rain
Fri
H: 34°F
L: 32°F
Light freezing rain
Sat
H: 34°F
L: 28°F

Air Quality

AQI: 1 - Good
PM2.5: 13.25 μg/m3
PM10: 14.05 μg/m3
Carbon Monoxide: 271.85 μg/m3
Nitrogen Dioxide: 2.95 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 71 μg/m3

Astronomical

Sunrise: 7:31 AM
Sun Transit: 12:48 AM
Sunset: 6:07 PM
Daylight: 10 hrs 35 mins
Moonrise: 7:43 AM
Moon Transit: 1:01 PM
Moonset: 6:31 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:59 AM - 3:29 AM
12:31 AM - 3:01 PM

Minor Periods

6:01 PM - 7:31 PM
7:13 AM - 8:43 AM

Action Rating: 5 out of 5

Winter Weather Advisory issued February 17 at 12:05PM EST until February 18 at 7:00PM EST by NWS Gaylord MI

Effective: Tue February 17, 2026, 12:05 PM
Expires: Wed February 18, 2026, 12:15 AM

* WHAT...Mixed precipitation expected. Total snow and sleet accumulations up to one inch and ice accumulations between one tenth and one quarter of an inch. Winds gusting as high as 35 mph. * WHERE...Iosco, Kalkaska, Missaukee, Ogemaw, and Roscommon Counties. * WHEN...From 1 AM to 7 PM EST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning and evening commutes.

Slow down and use caution while traveling. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Winter Weather Advisory issued February 17 at 2:28PM EST until February 18 at 7:00PM EST by NWS Gaylord MI

Effective: Tue February 17, 2026, 2:28 PM
Expires: Wed February 18, 2026, 2:30 AM

* WHAT...Mixed precipitation expected. Total snow and sleet accumulations up to one inch and ice accumulations around one quarter of an inch. Winds gusting as high as 40 mph. * WHERE...Iosco, Kalkaska, Missaukee, Ogemaw, and Roscommon Counties. * WHEN...From 1 AM to 7 PM EST Wednesday. * IMPACTS...Roads will likely become slick and hazardous. Plan on slippery road conditions. Power outages and tree damage is possible due to the ice. The hazardous conditions could impact the Wednesday morning and evening commutes.

Slow down and use caution while traveling. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Winter Weather Advisory issued February 17 at 12:05PM EST until February 18 at 7:00PM EST by NWS Gaylord MI

Effective: Tue February 17, 2026, 12:05 PM
Expires: Wed February 18, 2026, 12:15 AM

* WHAT...Mixed precipitation expected. Total snow and sleet accumulations of 1 to 4 inches. In addition, ice accumulations between one tenth and one quarter of an inch. Winds gusting as high as 35 mph. * WHERE...A portion of Northern Lower Michigan. * WHEN...From 1 AM to 7 PM EST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Power outages and tree damage is possible due to the ice. The hazardous conditions could impact the Wednesday morning and evening commutes.

Slow down and use caution while traveling. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Winter Weather Advisory issued February 17 at 2:28PM EST until February 18 at 7:00PM EST by NWS Gaylord MI

Effective: Tue February 17, 2026, 2:28 PM
Expires: Wed February 18, 2026, 2:30 AM

* WHAT...Mixed precipitation expected. Total snow and sleet accumulations of 1 to 4 inches. In addition, ice accumulations between one tenth and one quarter of an inch. Winds gusting as high as 35 mph. * WHERE...A portion of Northern Lower Michigan. * WHEN...From 1 AM to 7 PM EST Wednesday. * IMPACTS...Roads will likely become slick and hazardous. Power outages and tree damage is possible due to the ice. The hazardous conditions could impact the Wednesday morning and evening commutes.

Slow down and use caution while traveling. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Winter Weather Advisory issued February 17 at 12:05PM EST until February 18 at 1:00PM EST by NWS Gaylord MI

Effective: Tue February 17, 2026, 12:05 PM
Expires: Wed February 18, 2026, 12:15 AM

* WHAT...Freezing rain expected. Total ice accumulations up to one tenth of an inch. * WHERE...Arenac and Gladwin Counties. * WHEN...From 1 AM to 1 PM EST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Difficult travel conditions are possible. The hazardous conditions could impact the Wednesday morning commute.

Slow down and use caution while traveling. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Tuesday, February 17, 2026

Weather Forecast

Cloudy
40.6°F
26.4°F
33.1°F
94%
0 in
0%
0%
9.8 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 11.8 μg/m3
PM10: 12.53 μg/m3
Carbon Monoxide: 226.89 μg/m3
Nitrogen Dioxide: 5.92 μg/m3
Sulphur Dioxide: 1.97 μg/m3
Ozone: 68.48 μg/m3

Astronomical

Sunrise: 7:31 AM
Sun Transit: 12:48 AM
Sunset: 6:07 PM
Daylight: 10 hrs 35 mins
Moonrise: 7:43 AM
Moon Transit: 1:01 PM
Moonset: 6:31 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:59 AM - 3:29 AM
12:31 AM - 3:01 PM

Minor Periods

6:01 PM - 7:31 PM
7:13 AM - 8:43 AM

Action Rating: 5 out of 5

Wednesday, February 18, 2026

Weather Forecast

Moderate or heavy snow showers
32.4°F
29.7°F
31°F
95%
0.69 in
70%
17%
16.1 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 8.85 μg/m3
PM10: 9.29 μg/m3
Carbon Monoxide: 273.97 μg/m3
Nitrogen Dioxide: 8.35 μg/m3
Sulphur Dioxide: 2.72 μg/m3
Ozone: 67.08 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:48 AM
Sunset: 6:08 PM
Daylight: 10 hrs 38 mins
Moonrise: 8:03 AM
Moon Transit: 1:47 PM
Moonset: 7:44 PM
Moon Phase: New
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

1:46 AM - 4:16 AM
1:17 PM - 3:47 PM

Minor Periods

7:14 PM - 8:44 PM
7:33 AM - 9:03 AM

Action Rating: 4 out of 5

Thursday, February 19, 2026

Weather Forecast

Fog
33.3°F
30.9°F
32.1°F
97%
0 in
0%
0%
11 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 1.97 μg/m3
PM10: 2.02 μg/m3
Carbon Monoxide: 201.09 μg/m3
Nitrogen Dioxide: 4.35 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 74.56 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:48 AM
Sunset: 6:10 PM
Daylight: 10 hrs 41 mins
Moonrise: 8:22 AM
Moon Transit: 4:07 PM
Moonset: 8:58 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

3:37 PM - 6:07 PM
3:37 PM - 6:07 PM

Minor Periods

8:28 PM - 9:58 PM
7:52 AM - 9:22 AM

Action Rating: 5 out of 5

Friday, February 20, 2026

Weather Forecast

Moderate or heavy freezing rain
34°F
31.6°F
32.6°F
96%
1.81 in
76%
28%
13.2 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 4.69 μg/m3
PM10: 4.81 μg/m3
Carbon Monoxide: 216.38 μg/m3
Nitrogen Dioxide: 6.02 μg/m3
Sulphur Dioxide: 2.19 μg/m3
Ozone: 73.64 μg/m3

Astronomical

Sunrise: 7:27 AM
Sun Transit: 12:48 AM
Sunset: 6:11 PM
Daylight: 10 hrs 44 mins
Moonrise: 8:41 AM
Moon Transit: 3:19 PM
Moonset: 10:13 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:49 PM - 5:19 PM

Minor Periods

9:43 PM - 11:13 PM
8:11 AM - 9:41 AM

Action Rating: 2 out of 5

Saturday, February 21, 2026

Weather Forecast

Light freezing rain
34.2°F
28.3°F
31.6°F
84%
0.01 in
68%
27%
10.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.96 μg/m3
PM10: 2.07 μg/m3
Carbon Monoxide: 189.65 μg/m3
Nitrogen Dioxide: 2.92 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 85.38 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:48 AM
Sunset: 6:12 PM
Daylight: 10 hrs 47 mins
Moonrise: 9:02 AM
Moon Transit: 4:08 PM
Moonset: 11:30 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

4:05 AM - 6:35 AM
3:38 PM - 6:08 PM

Minor Periods

12:00 AM - 12:00 AM
8:32 AM - 10:02 AM

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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