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

Current Water Temperature

61.0°F

Measurement Time: Wednesday, July 22, 2026, 12:30 AM EDT

Temperature Locations

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Local Points of Interest

Au Sable State Forest-Grayling Unit; Luzerne, MI

South Branch Au Sable River

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

Elevation Above Sea Level: 1,070 feet

Nearest Address:
7801 Old M-72
Grayling, MI 49738
Crawford County

GPS Coordinates: 44.61473849, -84.455575

Nearby Water Temperatures

North Branch Au Sable River, Grayling, MI (7.3 mi)
Au Sable River, Luzerne, MI (9.1 mi)
Au Sable River, Mio, MI (16.3 mi)
Manistee River, Grayling, MI (20 mi)
Au Sable River, Curran, MI (30.4 mi)
Au Sable River, Glennie, MI (32.3 mi)
Au Sable River, South Branch, MI (37.6 mi)
Au Sable River, Glennie, MI (40 mi)
Rifle River, Sterling, MI (43.2 mi)
Au Sable River, Oscoda, MI (44.6 mi)
Au Sable River, Oscoda, MI (51.8 mi)
Thunder Bay River, Alpena, MI (59.1 mi)
Manistee River, Mesick, MI (62.5 mi)
Little Traverse Bay, Petoskey, MI (62.7 mi)
Lake Huron, Alpena, MI (63.6 mi)

Weather for Grayling, Michigan

Current Weather

49.3°F
Clear
Clear
45.5°F
50.9°F
94%
NW 8.9 mph
12.1 mph
48.7°F
44.9°F
0 in
0%
9 mi
1012 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 70°F
L: 51°F
Sunny
Thu
H: 78°F
L: 49°F
Sunny
Fri
H: 82°F
L: 55°F
Sunny
Sat
H: 84°F
L: 57°F
Sunny
Sun
H: 92°F
L: 62°F

Air Quality

AQI: 1 - Good
PM2.5: 6.5 μg/m3
PM10: 7 μg/m3
Carbon Monoxide: 93 μg/m3
Nitrogen Dioxide: 0.7 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 67 μg/m3

Astronomical

Sunrise: 6:14 AM
Sun Transit: 1:44 PM
Sunset: 9:14 PM
Daylight: 15 hrs mins
Moonrise: 3:52 PM
Moon Transit: 8:29 PM
Moonset: 12:34 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

8:22 AM - 10:52 AM
7:59 PM - 10:29 PM

Minor Periods

3:22 PM - 4:52 PM
12:04 AM - 1:34 AM

Action Rating: 2 out of 5

Beach Hazards Statement issued July 22 at 2:43AM EDT until July 22 at 8:00PM EDT by NWS Gaylord MI

Effective: Wed July 22, 2026, 2:43 AM
Expires: Wed July 22, 2026, 10:45 AM

* WHAT...Dangerous swimming conditions due to 3-7 ft waves and rip currents. * WHERE...Cheboygan and Alpena Counties. * WHEN...From 8 AM EDT this morning through Wednesday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers.

Remain out of the water to avoid hazardous swimming conditions.


Beach Hazards Statement issued July 21 at 10:40PM EDT until July 22 at 8:00PM EDT by NWS Gaylord MI

Effective: Tue July 21, 2026, 10:40 PM
Expires: Wed July 22, 2026, 6:45 AM

* WHAT...Dangerous swimming conditions due to 3-7 ft waves and rip currents. * WHERE...Presque Isle County. * WHEN...From 8 AM EDT this morning through Wednesday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers.

Remain out of the water to avoid hazardous swimming conditions.


Beach Hazards Statement issued July 22 at 2:43AM EDT until July 22 at 8:00PM EDT by NWS Gaylord MI

Effective: Wed July 22, 2026, 2:43 AM
Expires: Wed July 22, 2026, 10:45 AM

* WHAT...Dangerous swimming conditions due to 3-7 ft waves and rip currents. * WHERE...Presque Isle County. * WHEN...From 8 AM EDT this morning through Wednesday evening. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers.

Remain out of the water to avoid hazardous swimming conditions.
Wednesday, July 22, 2026

Weather Forecast

Sunny
69.6°F
50.9°F
59.4°F
62%
0 in
17%
0%
14.5 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 5.24 μg/m3
PM10: 5.58 μg/m3
Carbon Monoxide: 95.79 μg/m3
Nitrogen Dioxide: 0.64 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 72.71 μg/m3

Astronomical

Sunrise: 6:14 AM
Sun Transit: 1:44 PM
Sunset: 9:14 PM
Daylight: 15 hrs mins
Moonrise: 3:52 PM
Moon Transit: 8:29 PM
Moonset: 12:34 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

8:22 AM - 10:52 AM
7:59 PM - 10:29 PM

Minor Periods

3:22 PM - 4:52 PM
12:04 AM - 1:34 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
78.3°F
48.9°F
63.1°F
54%
0 in
2%
0%
6.7 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 3.17 μg/m3
PM10: 3.41 μg/m3
Carbon Monoxide: 111.67 μg/m3
Nitrogen Dioxide: 1.67 μg/m3
Sulphur Dioxide: 0.16 μg/m3
Ozone: 71.88 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 1:44 PM
Sunset: 9:13 PM
Daylight: 14 hrs 58 mins
Moonrise: 4:58 PM
Moon Transit: 9:17 PM
Moonset: 1:00 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

9:08 AM - 11:38 AM
8:47 PM - 11:17 PM

Minor Periods

4:28 PM - 5:58 PM
12:30 AM - 2:00 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
82.2°F
54.6°F
67.7°F
52%
0 in
2%
0%
4.9 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 5.13 μg/m3
PM10: 5.34 μg/m3
Carbon Monoxide: 125.75 μg/m3
Nitrogen Dioxide: 1.93 μg/m3
Sulphur Dioxide: 0.57 μg/m3
Ozone: 84.58 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 1:44 PM
Sunset: 9:12 PM
Daylight: 14 hrs 56 mins
Moonrise: 6:01 PM
Moon Transit: 10:07 PM
Moonset: 1:31 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

9:57 AM - 12:27 AM
12:00 AM - 12:00 AM

Minor Periods

5:31 PM - 7:01 PM
1:01 AM - 2:31 AM

Action Rating: 3 out of 5

Saturday, July 25, 2026

Weather Forecast

Sunny
84.2°F
56.5°F
70°F
61%
0 in
4%
0%
8.9 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 6.47 μg/m3
PM10: 6.68 μg/m3
Carbon Monoxide: 130.92 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 97.54 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 1:44 PM
Sunset: 9:11 PM
Daylight: 14 hrs 54 mins
Moonrise: 6:58 PM
Moon Transit: 10:58 PM
Moonset: 2:11 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

10:48 AM - 1:18 PM
12:00 AM - 12:00 AM

Minor Periods

6:28 PM - 7:58 PM
1:41 AM - 3:11 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
91.7°F
62.2°F
75°F
74%
0.12 in
60%
0%
11 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 6.51 μg/m3
PM10: 6.66 μg/m3
Carbon Monoxide: 172.56 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 1.09 μg/m3
Ozone: 102.22 μg/m3

Astronomical

Sunrise: 6:18 AM
Sun Transit: 1:44 PM
Sunset: 9:10 PM
Daylight: 14 hrs 52 mins
Moonrise: 7:47 PM
Moon Transit: 11:49 PM
Moonset: 2:59 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

11:40 AM - 2:10 PM
12:00 AM - 12:00 AM

Minor Periods

7:17 PM - 8:47 PM
2:29 AM - 3:59 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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