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

Current Water Temperature

56.7°F

Measurement Time: Tuesday, September 29, 2026, 7:30 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

60°F
Cloudy
Cloudy
78%
SW 5 mph
53°F

Weather Forecast

Chance Rain Showers
Overnight
57°F - Chance Rain Showers
Rain Showers Likely
Wednesday
66°F - Rain Showers Likely
Chance Rain Showers
Wednesday Night
58°F - Chance Rain Showers
Rain Showers Likely
Thursday
68°F - Rain Showers Likely
Rain Showers Likely
Thursday Night
41°F - Rain Showers Likely
Mostly Sunny
Friday
64°F - Mostly Sunny
Mostly Clear
Friday Night
29°F - Mostly Clear
Sunny
Saturday
63°F - Sunny
Mostly Cloudy then Slight Chance Rain Showers
Saturday Night
37°F - Mostly Cloudy then Slight Chance Rain Showers
Slight Chance Rain Showers
Sunday
63°F - Slight Chance Rain Showers
Mostly Clear
Sunday Night
30°F - Mostly Clear
Sunny
Monday
56°F - Sunny
Mostly Clear
Monday Night
28°F - Mostly Clear
Sunny
Tuesday
61°F - Sunny

Astronomical

Sunrise: 7:34 AM
Sun Transit: 1:27 PM
Sunset: 7:20 PM
Daylight: 11 hrs 45 mins
Moonrise: 9:10 PM
Moon Transit: 4:25 AM
Moonset: 12:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:55 AM - 6:25 AM
5:10 PM - 7:40 PM

Minor Periods

8:40 PM - 10:10 PM
12:04 AM - 1:34 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 1:27 PM
Sunset: 7:20 PM
Daylight: 11 hrs 45 mins
Moonrise: 9:10 PM
Moon Transit: 4:25 AM
Moonset: 12:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:55 AM - 6:25 AM
5:10 PM - 7:40 PM

Minor Periods

8:40 PM - 10:10 PM
12:04 AM - 1:34 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 1:27 PM
Sunset: 7:20 PM
Daylight: 11 hrs 45 mins
Moonrise: 9:10 PM
Moon Transit: 4:25 AM
Moonset: 12:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:55 AM - 6:25 AM
5:10 PM - 7:40 PM

Minor Periods

8:40 PM - 10:10 PM
12:04 AM - 1:34 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 1:27 PM
Sunset: 7:20 PM
Daylight: 11 hrs 45 mins
Moonrise: 9:10 PM
Moon Transit: 4:25 AM
Moonset: 12:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:55 AM - 6:25 AM
5:10 PM - 7:40 PM

Minor Periods

8:40 PM - 10:10 PM
12:04 AM - 1:34 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:36 AM
Sun Transit: 1:27 PM
Sunset: 7:18 PM
Daylight: 11 hrs 42 mins
Moonrise: 10:02 PM
Moon Transit: 5:25 AM
Moonset: 1:49 PM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:55 AM - 7:25 AM
6:12 PM - 8:42 PM

Minor Periods

9:32 PM - 11:02 PM
1:19 PM - 2:49 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:36 AM
Sun Transit: 1:27 PM
Sunset: 7:18 PM
Daylight: 11 hrs 42 mins
Moonrise: 10:02 PM
Moon Transit: 5:25 AM
Moonset: 1:49 PM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:55 AM - 7:25 AM
6:12 PM - 8:42 PM

Minor Periods

9:32 PM - 11:02 PM
1:19 PM - 2:49 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:37 AM
Sun Transit: 1:27 PM
Sunset: 7:16 PM
Daylight: 11 hrs 39 mins
Moonrise: 11:06 PM
Moon Transit: 6:27 AM
Moonset: 2:54 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:57 AM - 8:27 AM
7:15 PM - 9:45 PM

Minor Periods

12:00 AM - 12:00 AM
2:24 PM - 3:54 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:37 AM
Sun Transit: 1:27 PM
Sunset: 7:16 PM
Daylight: 11 hrs 39 mins
Moonrise: 11:06 PM
Moon Transit: 6:27 AM
Moonset: 2:54 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:57 AM - 8:27 AM
7:15 PM - 9:45 PM

Minor Periods

12:00 AM - 12:00 AM
2:24 PM - 3:54 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:38 AM
Sun Transit: 1:26 PM
Sunset: 7:14 PM
Daylight: 11 hrs 36 mins
Moonrise: 12:06 AM
Moon Transit: 7:30 AM
Moonset: 3:46 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

7:00 AM - 9:30 AM
8:16 PM - 10:46 PM

Minor Periods

3:16 PM - 4:46 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:38 AM
Sun Transit: 1:26 PM
Sunset: 7:14 PM
Daylight: 11 hrs 36 mins
Moonrise: 12:06 AM
Moon Transit: 7:30 AM
Moonset: 3:46 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

7:00 AM - 9:30 AM
8:16 PM - 10:46 PM

Minor Periods

3:16 PM - 4:46 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:39 AM
Sun Transit: 1:26 PM
Sunset: 7:13 PM
Daylight: 11 hrs 33 mins
Moonrise: 12:21 AM
Moon Transit: 8:30 AM
Moonset: 4:27 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

8:00 AM - 10:30 AM
9:14 PM - 11:44 PM

Minor Periods

3:57 PM - 5:27 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:39 AM
Sun Transit: 1:26 PM
Sunset: 7:13 PM
Daylight: 11 hrs 33 mins
Moonrise: 12:21 AM
Moon Transit: 8:30 AM
Moonset: 4:27 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

8:00 AM - 10:30 AM
9:14 PM - 11:44 PM

Minor Periods

3:57 PM - 5:27 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:41 AM
Sun Transit: 1:26 PM
Sunset: 7:11 PM
Daylight: 11 hrs 30 mins
Moonrise: 1:39 AM
Moon Transit: 9:26 AM
Moonset: 4:58 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:56 AM - 11:26 AM
12:00 AM - 12:00 AM

Minor Periods

4:28 PM - 5:58 PM
1:09 AM - 2:39 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:41 AM
Sun Transit: 1:26 PM
Sunset: 7:11 PM
Daylight: 11 hrs 30 mins
Moonrise: 1:39 AM
Moon Transit: 9:26 AM
Moonset: 4:58 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:56 AM - 11:26 AM
12:00 AM - 12:00 AM

Minor Periods

4:28 PM - 5:58 PM
1:09 AM - 2:39 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 1:25 PM
Sunset: 7:09 PM
Daylight: 11 hrs 27 mins
Moonrise: 2:57 AM
Moon Transit: 10:17 AM
Moonset: 5:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:47 AM - 12:17 AM

Minor Periods

4:53 PM - 6:23 PM
2:27 AM - 3:57 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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