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

Current Water Temperature

54.9°F

Measurement Time: Sunday, May 24, 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

48.6°F
Overcast
Overcast
48.8°F
47°F
91%
N 2.2 mph
6.7 mph
46.9°F
46.1°F
0 in
100%
9 mi
1016 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 64°F
L: 46°F
Patchy rain nearby
Mon
H: 75°F
L: 48°F
Sunny
Tue
H: 84°F
L: 56°F
Patchy rain nearby
Wed
H: 79°F
L: 58°F
Sunny
Thu
H: 80°F
L: 47°F

Air Quality

AQI: 1 - Good
PM2.5: 3.25 μg/m3
PM10: 3.35 μg/m3
Carbon Monoxide: 140.85 μg/m3
Nitrogen Dioxide: 2.85 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 60 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 1:34 PM
Sunset: 9:09 PM
Daylight: 15 hrs 8 mins
Moonrise: 2:37 PM
Moon Transit: 8:58 PM
Moonset: 2:50 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

8:52 AM - 11:22 AM
8:28 PM - 10:58 PM

Minor Periods

2:07 PM - 3:37 PM
2:20 AM - 3:50 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Patchy rain nearby
64.2°F
46.2°F
53.4°F
91%
0.13 in
89%
0%
7.4 mph
4.5


Air Quality

AQI: 1 - Good
PM2.5: 4.67 μg/m3
PM10: 4.75 μg/m3
Carbon Monoxide: 147.69 μg/m3
Nitrogen Dioxide: 3.39 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 69.88 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 1:34 PM
Sunset: 9:09 PM
Daylight: 15 hrs 8 mins
Moonrise: 2:37 PM
Moon Transit: 8:58 PM
Moonset: 2:50 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

8:52 AM - 11:22 AM
8:28 PM - 10:58 PM

Minor Periods

2:07 PM - 3:37 PM
2:20 AM - 3:50 AM

Action Rating: 2 out of 5

Monday, May 25, 2026

Weather Forecast

Patchy rain nearby
75°F
47.7°F
61.1°F
79%
0.08 in
88%
0%
10.5 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 7.7 μg/m3
PM10: 8.5 μg/m3
Carbon Monoxide: 146.77 μg/m3
Nitrogen Dioxide: 2.74 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 79.56 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 1:34 PM
Sunset: 9:10 PM
Daylight: 15 hrs 9 mins
Moonrise: 3:44 PM
Moon Transit: 9:40 PM
Moonset: 3:08 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

9:35 AM - 12:05 AM
9:10 PM - 11:40 PM

Minor Periods

3:14 PM - 4:44 PM
2:38 AM - 4:08 AM

Action Rating: 3 out of 5

Tuesday, May 26, 2026

Weather Forecast

Sunny
84.3°F
56.3°F
69.3°F
67%
0 in
0%
0%
11.4 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 7.53 μg/m3
PM10: 8.46 μg/m3
Carbon Monoxide: 138.85 μg/m3
Nitrogen Dioxide: 2.73 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 90.28 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 1:34 PM
Sunset: 9:11 PM
Daylight: 15 hrs 11 mins
Moonrise: 4:51 PM
Moon Transit: 10:22 PM
Moonset: 3:25 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

10:16 AM - 12:46 AM
12:00 AM - 12:00 AM

Minor Periods

4:21 PM - 5:51 PM
2:55 AM - 4:25 AM

Action Rating: 2 out of 5

Wednesday, May 27, 2026

Weather Forecast

Patchy rain nearby
78.9°F
57.9°F
67.1°F
72%
0.04 in
84%
0%
8.3 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 6.94 μg/m3
PM10: 7.87 μg/m3
Carbon Monoxide: 155.85 μg/m3
Nitrogen Dioxide: 2.1 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 94.76 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 1:35 PM
Sunset: 9:12 PM
Daylight: 15 hrs 13 mins
Moonrise: 5:57 PM
Moon Transit: 11:04 PM
Moonset: 3:43 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

10:58 AM - 1:28 PM
12:00 AM - 12:00 AM

Minor Periods

5:27 PM - 6:57 PM
3:13 AM - 4:43 AM

Action Rating: 2 out of 5

Thursday, May 28, 2026

Weather Forecast

Sunny
79.8°F
47.1°F
59.8°F
64%
0 in
0%
0%
8.7 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 4.2 μg/m3
PM10: 4.39 μg/m3
Carbon Monoxide: 140.75 μg/m3
Nitrogen Dioxide: 2.4 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 65.08 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 1:35 PM
Sunset: 9:13 PM
Daylight: 15 hrs 14 mins
Moonrise: 7:03 PM
Moon Transit: 11:49 PM
Moonset: 4:04 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

11:42 AM - 2:12 PM
12:00 AM - 12:00 AM

Minor Periods

6:33 PM - 8:03 PM
3:34 AM - 5:04 AM

Action Rating: 2 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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