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

Current Water Temperature

39.7°F

Measurement Time: Monday, March 9, 2026, 9:30 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

61°F
Sunny
Sunny
61°F
64.4°F
41%
WSW 13.4 mph
15.4 mph
64.3°F
44.3°F
0 in
0%
9 mi
1004 mbar
2.8

Five Day Weather Forecast

Sunny
Mon
H: 66°F
L: 41°F
Moderate or heavy snow showers
Tue
H: 35°F
L: 30°F
Moderate or heavy snow showers
Wed
H: 31°F
L: 27°F
Overcast
Thu
H: 29°F
L: 25°F
Heavy snow
Fri
H: 35°F
L: 23°F

Air Quality

AQI: 1 - Good
PM2.5: 4.35 μg/m3
PM10: 4.55 μg/m3
Carbon Monoxide: 169.85 μg/m3
Nitrogen Dioxide: 3.95 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 8:01 AM
Sun Transit: 1:48 PM
Sunset: 7:36 PM
Daylight: 11 hrs 35 mins
Moonrise: 1:40 AM
Moon Transit: 6:04 AM
Moonset: 10:22 AM
Moon Phase: Waning Gibbous
Moon Illumination: 58.5%

Best Times for Fishing or Hunting

Major Periods

5:34 AM - 8:04 AM
6:44 PM - 9:14 PM

Minor Periods

9:52 AM - 11:22 AM
1:10 AM - 2:40 AM

Action Rating: 3 out of 5

Monday, March 9, 2026

Weather Forecast

Sunny
65.5°F
41.2°F
52.6°F
61%
0 in
0%
0%
15 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 4.44 μg/m3
PM10: 5.07 μg/m3
Carbon Monoxide: 169.69 μg/m3
Nitrogen Dioxide: 3.46 μg/m3
Sulphur Dioxide: 1.89 μg/m3
Ozone: 82.12 μg/m3

Astronomical

Sunrise: 8:01 AM
Sun Transit: 1:48 PM
Sunset: 7:36 PM
Daylight: 11 hrs 35 mins
Moonrise: 1:40 AM
Moon Transit: 6:04 AM
Moonset: 10:22 AM
Moon Phase: Waning Gibbous
Moon Illumination: 58.5%

Best Times for Fishing or Hunting

Major Periods

5:34 AM - 8:04 AM
6:44 PM - 9:14 PM

Minor Periods

9:52 AM - 11:22 AM
1:10 AM - 2:40 AM

Action Rating: 3 out of 5

Tuesday, March 10, 2026

Weather Forecast

Moderate or heavy snow showers
34.7°F
29.8°F
33.7°F
84%
0.09 in
77%
9%
15 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 2.59 μg/m3
PM10: 2.7 μg/m3
Carbon Monoxide: 162.65 μg/m3
Nitrogen Dioxide: 2.73 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 78.16 μg/m3

Astronomical

Sunrise: 7:59 AM
Sun Transit: 1:48 PM
Sunset: 7:37 PM
Daylight: 11 hrs 38 mins
Moonrise: 2:46 AM
Moon Transit: 6:53 AM
Moonset: 10:58 AM
Moon Phase: Last Quarter
Moon Illumination: 47.2%

Best Times for Fishing or Hunting

Major Periods

6:23 AM - 8:53 AM
7:34 PM - 10:04 PM

Minor Periods

10:28 AM - 11:58 AM
2:16 AM - 3:46 AM

Action Rating: 3 out of 5

Wednesday, March 11, 2026

Weather Forecast

Moderate or heavy snow showers
30.7°F
27°F
28.6°F
84%
2.02 in
82%
34%
17 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 2.01 μg/m3
PM10: 2.11 μg/m3
Carbon Monoxide: 169.25 μg/m3
Nitrogen Dioxide: 2.14 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 80.44 μg/m3

Astronomical

Sunrise: 7:57 AM
Sun Transit: 1:47 PM
Sunset: 7:39 PM
Daylight: 11 hrs 41 mins
Moonrise: 3:45 AM
Moon Transit: 7:44 AM
Moonset: 11:43 AM
Moon Phase: Last Quarter
Moon Illumination: 36.0%

Best Times for Fishing or Hunting

Major Periods

7:14 AM - 9:44 AM
8:26 PM - 10:56 PM

Minor Periods

11:13 AM - 12:43 AM
3:15 AM - 4:45 AM

Action Rating: 2 out of 5

Thursday, March 12, 2026

Weather Forecast

Overcast
29.1°F
24.8°F
26.8°F
69%
0 in
0%
15%
15.7 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 1.94 μg/m3
PM10: 2.55 μg/m3
Carbon Monoxide: 162.21 μg/m3
Nitrogen Dioxide: 1.48 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 94.2 μg/m3

Astronomical

Sunrise: 7:55 AM
Sun Transit: 1:47 PM
Sunset: 7:40 PM
Daylight: 11 hrs 45 mins
Moonrise: 4:37 AM
Moon Transit: 8:36 AM
Moonset: 12:38 AM
Moon Phase: Last Quarter
Moon Illumination: 25.6%

Best Times for Fishing or Hunting

Major Periods

8:06 AM - 10:36 AM
9:18 PM - 11:48 PM

Minor Periods

12:08 AM - 1:38 PM
4:07 AM - 5:37 AM

Action Rating: 3 out of 5

Friday, March 13, 2026

Weather Forecast

Heavy snow
35.3°F
23.3°F
28.1°F
86%
0.75 in
63%
45%
18.1 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.33 μg/m3
PM10: 4.5 μg/m3
Carbon Monoxide: 189.52 μg/m3
Nitrogen Dioxide: 2.97 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 83.85 μg/m3

Astronomical

Sunrise: 7:54 AM
Sun Transit: 1:47 PM
Sunset: 7:41 PM
Daylight: 11 hrs 48 mins
Moonrise: 5:20 AM
Moon Transit: 9:28 AM
Moonset: 1:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 16.4%

Best Times for Fishing or Hunting

Major Periods

8:58 AM - 11:28 AM
12:00 AM - 12:00 AM

Minor Periods

1:10 PM - 2:40 PM
4:50 AM - 6:20 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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