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

Current Water Temperature

32.0°F

Measurement Time: Saturday, January 24, 2026, 2:05 PM EST

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

3.4°F
Overcast
Overcast
-1.2°F
5°F
66%
SW 2.2 mph
3 mph
-0.1°F
-0.9°F
0 in
100%
8 mi
1033 mbar
0

Five Day Weather Forecast

Light freezing rain
Sat
H: 8°F
L: -14°F
Overcast
Sun
H: 12°F
L: -6°F
Partly Cloudy
Mon
H: 12°F
L: 8°F
Overcast
Tue
H: 19°F
L: 7°F
Light snow
Wed
H: 17°F
L: 6°F

Air Quality

AQI: 1 - Good
PM2.5: 3.65 μg/m3
PM10: 3.75 μg/m3
Carbon Monoxide: 196.85 μg/m3
Nitrogen Dioxide: 7.35 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 59 μg/m3

Astronomical

Sunrise: 8:05 AM
Sun Transit: 12:49 AM
Sunset: 5:35 PM
Daylight: 9 hrs 31 mins
Moonrise: 10:38 AM
Moon Transit: 5:24 PM
Moonset: 12:12 AM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:54 PM - 7:24 PM

Minor Periods

10:08 AM - 11:38 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, January 24, 2026

Weather Forecast

Light freezing rain
7.5°F
-14.1°F
-4.5°F
66%
0.01 in
86%
25%
7.2 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 1.99 μg/m3
PM10: 2.07 μg/m3
Carbon Monoxide: 169.81 μg/m3
Nitrogen Dioxide: 3.14 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 62.48 μg/m3

Astronomical

Sunrise: 8:05 AM
Sun Transit: 12:49 AM
Sunset: 5:35 PM
Daylight: 9 hrs 31 mins
Moonrise: 10:38 AM
Moon Transit: 5:24 PM
Moonset: 12:12 AM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:54 PM - 7:24 PM

Minor Periods

10:08 AM - 11:38 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, January 25, 2026

Weather Forecast

Overcast
12°F
-5.6°F
5°F
62%
0 in
0%
0%
7.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.58 μg/m3
PM10: 3.65 μg/m3
Carbon Monoxide: 186.85 μg/m3
Nitrogen Dioxide: 5.78 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 63.12 μg/m3

Astronomical

Sunrise: 8:04 AM
Sun Transit: 12:50 AM
Sunset: 5:37 PM
Daylight: 9 hrs 33 mins
Moonrise: 11:00 AM
Moon Transit: 6:13 PM
Moonset: 12:27 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

6:04 AM - 8:34 AM
5:43 PM - 8:13 PM

Minor Periods

10:30 AM - 12:00 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, January 26, 2026

Weather Forecast

Partly Cloudy
11.7°F
8.1°F
9.6°F
71%
0 in
0%
0%
12.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 2.62 μg/m3
PM10: 2.65 μg/m3
Carbon Monoxide: 169.21 μg/m3
Nitrogen Dioxide: 3.08 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 69.96 μg/m3

Astronomical

Sunrise: 8:03 AM
Sun Transit: 12:50 AM
Sunset: 5:38 PM
Daylight: 9 hrs 35 mins
Moonrise: 11:26 AM
Moon Transit: 7:07 PM
Moonset: 1:44 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

6:56 AM - 9:26 AM
6:37 PM - 9:07 PM

Minor Periods

10:56 AM - 12:26 AM
1:14 AM - 2:44 AM

Action Rating: 2 out of 5

Tuesday, January 27, 2026

Weather Forecast

Overcast
18.7°F
6.9°F
13.6°F
77%
0 in
0%
0%
11.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.48 μg/m3
PM10: 5.58 μg/m3
Carbon Monoxide: 170.73 μg/m3
Nitrogen Dioxide: 4.2 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 68.56 μg/m3

Astronomical

Sunrise: 8:02 AM
Sun Transit: 12:50 AM
Sunset: 5:40 PM
Daylight: 9 hrs 38 mins
Moonrise: 12:00 AM
Moon Transit: 8:05 PM
Moonset: 3:04 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

7:52 AM - 10:22 AM
7:35 PM - 10:05 PM

Minor Periods

11:30 AM - 1:00 PM
2:34 AM - 4:04 AM

Action Rating: 3 out of 5

Wednesday, January 28, 2026

Weather Forecast

Light snow
16.6°F
6°F
11.5°F
88%
0.02 in
85%
48%
10.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.87 μg/m3
PM10: 3.91 μg/m3
Carbon Monoxide: 185.8 μg/m3
Nitrogen Dioxide: 3.24 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 69.62 μg/m3

Astronomical

Sunrise: 8:01 AM
Sun Transit: 12:50 AM
Sunset: 5:41 PM
Daylight: 9 hrs 40 mins
Moonrise: 12:45 AM
Moon Transit: 9:08 PM
Moonset: 4:24 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

8:52 AM - 11:22 AM
8:38 PM - 11:08 PM

Minor Periods

12:15 AM - 1:45 PM
3:54 AM - 5:24 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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