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

Current Water Temperature

35.2°F

Measurement Time: Monday, March 23, 2026, 10:30 PM 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

9.9°F
Clear
Clear
1.1°F
14°F
87%
SW 4.9 mph
8.3 mph
10.2°F
6.2°F
0 in
0%
9 mi
1027 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 41°F
L: 14°F
Overcast
Wed
H: 47°F
L: 30°F
Mist
Thu
H: 50°F
L: 28°F
Overcast
Fri
H: 27°F
L: 15°F
Patchy moderate snow
Sat
H: 39°F
L: 22°F

Air Quality

AQI: 1 - Good
PM2.5: 2.15 μg/m3
PM10: 2.75 μg/m3
Carbon Monoxide: 182.85 μg/m3
Nitrogen Dioxide: 2.15 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 7:33 AM
Sun Transit: 12:00 AM
Sunset: 7:55 PM
Daylight: 12 hrs 22 mins
Moonrise: 10:30 AM
Moon Transit: 6:56 PM
Moonset: 2:18 AM
Moon Phase: Waxing Crescent
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

6:41 AM - 9:11 AM
6:26 PM - 8:56 PM

Minor Periods

10:00 AM - 11:30 AM
1:48 AM - 3:18 AM

Action Rating: 2 out of 5

Tuesday, March 24, 2026

Weather Forecast

Sunny
41°F
13.6°F
27.5°F
71%
0 in
0%
3%
13.6 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 4.4 μg/m3
PM10: 4.97 μg/m3
Carbon Monoxide: 185.13 μg/m3
Nitrogen Dioxide: 3.41 μg/m3
Sulphur Dioxide: 1.63 μg/m3
Ozone: 89.36 μg/m3

Astronomical

Sunrise: 7:33 AM
Sun Transit: 12:00 AM
Sunset: 7:55 PM
Daylight: 12 hrs 22 mins
Moonrise: 10:30 AM
Moon Transit: 6:56 PM
Moonset: 2:18 AM
Moon Phase: Waxing Crescent
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

6:41 AM - 9:11 AM
6:26 PM - 8:56 PM

Minor Periods

10:00 AM - 11:30 AM
1:48 AM - 3:18 AM

Action Rating: 2 out of 5

Wednesday, March 25, 2026

Weather Forecast

Overcast
46.8°F
30°F
38.7°F
69%
0 in
0%
0%
8.7 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 11.38 μg/m3
PM10: 12.27 μg/m3
Carbon Monoxide: 204.33 μg/m3
Nitrogen Dioxide: 8.3 μg/m3
Sulphur Dioxide: 3.62 μg/m3
Ozone: 67.56 μg/m3

Astronomical

Sunrise: 7:31 AM
Sun Transit: 12:00 AM
Sunset: 7:57 PM
Daylight: 12 hrs 25 mins
Moonrise: 11:32 AM
Moon Transit: 8:00 PM
Moonset: 3:26 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

7:44 AM - 10:14 AM
7:30 PM - 10:00 PM

Minor Periods

11:02 AM - 12:32 AM
2:56 AM - 4:26 AM

Action Rating: 4 out of 5

Thursday, March 26, 2026

Weather Forecast

Mist
49.8°F
28.4°F
42.9°F
80%
0 in
0%
0%
17 mph
0.5


Air Quality

AQI: 2 - Moderate
PM2.5: 18.18 μg/m3
PM10: 18.77 μg/m3
Carbon Monoxide: 233.45 μg/m3
Nitrogen Dioxide: 8.86 μg/m3
Sulphur Dioxide: 4.79 μg/m3
Ozone: 58.08 μg/m3

Astronomical

Sunrise: 7:29 AM
Sun Transit: 12:00 AM
Sunset: 7:58 PM
Daylight: 12 hrs 29 mins
Moonrise: 12:44 AM
Moon Transit: 9:00 PM
Moonset: 4:21 AM
Moon Phase: First Quarter
Moon Illumination: 56.4%

Best Times for Fishing or Hunting

Major Periods

8:46 AM - 11:16 AM
8:30 PM - 11:00 PM

Minor Periods

12:14 AM - 1:44 PM
3:51 AM - 5:21 AM

Action Rating: 2 out of 5

Friday, March 27, 2026

Weather Forecast

Overcast
27.1°F
14.9°F
22.2°F
59%
0 in
0%
24%
16.3 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 1.99 μg/m3
PM10: 2.48 μg/m3
Carbon Monoxide: 166.14 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 91 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:00 AM
Sunset: 7:59 PM
Daylight: 12 hrs 32 mins
Moonrise: 2:01 PM
Moon Transit: 9:54 PM
Moonset: 5:02 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

9:43 AM - 12:13 AM
9:24 PM - 11:54 PM

Minor Periods

1:31 PM - 3:01 PM
4:32 AM - 6:02 AM

Action Rating: 2 out of 5

Saturday, March 28, 2026

Weather Forecast

Patchy moderate snow
38.6°F
21.8°F
27°F
57%
0.02 in
65%
12%
16.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.37 μg/m3
PM10: 3.03 μg/m3
Carbon Monoxide: 178.93 μg/m3
Nitrogen Dioxide: 2.19 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 88.31 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:00 AM
Sunset: 8:01 PM
Daylight: 12 hrs 35 mins
Moonrise: 3:18 PM
Moon Transit: 10:46 PM
Moonset: 5:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

10:36 AM - 1:06 PM
12:00 AM - 12:00 AM

Minor Periods

2:48 PM - 4:18 PM
5:03 AM - 6:33 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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