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

Current Water Temperature

32.0°F

Measurement Time: Tuesday, October 6, 2026, 4:25 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

39°F
Partly Sunny
Partly Sunny
89%
S 5 mph
36°F

Weather Forecast

Slight Chance Rain Showers
Today
64°F - Slight Chance Rain Showers
Slight Chance Rain Showers then Mostly Cloudy
Tonight
50°F - Slight Chance Rain Showers then Mostly Cloudy
Mostly Sunny
Wednesday
67°F - Mostly Sunny
Mostly Clear
Wednesday Night
40°F - Mostly Clear
Sunny
Thursday
60°F - Sunny
Mostly Clear
Thursday Night
33°F - Mostly Clear
Mostly Sunny
Friday
62°F - Mostly Sunny
Partly Cloudy
Friday Night
37°F - Partly Cloudy
Mostly Sunny
Saturday
69°F - Mostly Sunny
Partly Cloudy
Saturday Night
50°F - Partly Cloudy
Mostly Sunny
Sunday
75°F - Mostly Sunny
Partly Cloudy
Sunday Night
46°F - Partly Cloudy
Chance Rain Showers
Columbus Day
67°F - Chance Rain Showers
Chance Rain Showers
Monday Night
39°F - Chance Rain Showers

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

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

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

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: 7:43 AM
Sun Transit: 1:25 PM
Sunset: 7:07 PM
Daylight: 11 hrs 24 mins
Moonrise: 4:14 AM
Moon Transit: 11:06 AM
Moonset: 5:44 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:14 PM - 6:44 PM
3:44 AM - 5:14 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: 7:43 AM
Sun Transit: 1:25 PM
Sunset: 7:07 PM
Daylight: 11 hrs 24 mins
Moonrise: 4:14 AM
Moon Transit: 11:06 AM
Moonset: 5:44 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:14 PM - 6:44 PM
3:44 AM - 5:14 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: 7:44 AM
Sun Transit: 1:25 PM
Sunset: 7:05 PM
Daylight: 11 hrs 21 mins
Moonrise: 5:27 AM
Moon Transit: 11:52 AM
Moonset: 6:04 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:22 AM - 1:52 PM

Minor Periods

5:34 PM - 7:04 PM
4:57 AM - 6:27 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: 7:44 AM
Sun Transit: 1:25 PM
Sunset: 7:05 PM
Daylight: 11 hrs 21 mins
Moonrise: 5:27 AM
Moon Transit: 11:52 AM
Moonset: 6:04 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:22 AM - 1:52 PM

Minor Periods

5:34 PM - 7:04 PM
4:57 AM - 6:27 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: 7:46 AM
Sun Transit: 1:25 PM
Sunset: 7:04 PM
Daylight: 11 hrs 18 mins
Moonrise: 6:39 AM
Moon Transit: 12:36 AM
Moonset: 6:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:30 AM - 3:00 AM
12:06 AM - 2:36 PM

Minor Periods

5:53 PM - 7:23 PM
6:09 AM - 7:39 AM

Action Rating: 4 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: 7:46 AM
Sun Transit: 1:25 PM
Sunset: 7:04 PM
Daylight: 11 hrs 18 mins
Moonrise: 6:39 AM
Moon Transit: 12:36 AM
Moonset: 6:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:30 AM - 3:00 AM
12:06 AM - 2:36 PM

Minor Periods

5:53 PM - 7:23 PM
6:09 AM - 7:39 AM

Action Rating: 4 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: 7:47 AM
Sun Transit: 1:24 PM
Sunset: 7:02 PM
Daylight: 11 hrs 15 mins
Moonrise: 7:50 AM
Moon Transit: 1:21 PM
Moonset: 6:42 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

6:12 PM - 7:42 PM
7:20 AM - 8:50 AM

Action Rating: 4 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: 7:47 AM
Sun Transit: 1:24 PM
Sunset: 7:02 PM
Daylight: 11 hrs 15 mins
Moonrise: 7:50 AM
Moon Transit: 1:21 PM
Moonset: 6:42 PM
Moon Phase: New
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

6:12 PM - 7:42 PM
7:20 AM - 8:50 AM

Action Rating: 4 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: 7:48 AM
Sun Transit: 1:24 PM
Sunset: 7:00 PM
Daylight: 11 hrs 12 mins
Moonrise: 9:00 AM
Moon Transit: 2:07 PM
Moonset: 7:04 PM
Moon Phase: New
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

1:59 AM - 4:29 AM
1:37 PM - 4:07 PM

Minor Periods

6:34 PM - 8:04 PM
8:30 AM - 10:00 AM

Action Rating: 4 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: 7:48 AM
Sun Transit: 1:24 PM
Sunset: 7:00 PM
Daylight: 11 hrs 12 mins
Moonrise: 9:00 AM
Moon Transit: 2:07 PM
Moonset: 7:04 PM
Moon Phase: New
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

1:59 AM - 4:29 AM
1:37 PM - 4:07 PM

Minor Periods

6:34 PM - 8:04 PM
8:30 AM - 10:00 AM

Action Rating: 4 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: 7:49 AM
Sun Transit: 1:24 PM
Sunset: 6:58 PM
Daylight: 11 hrs 9 mins
Moonrise: 10:11 AM
Moon Transit: 2:54 PM
Moonset: 7:30 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

2:46 AM - 5:16 AM
2:24 PM - 4:54 PM

Minor Periods

7:00 PM - 8:30 PM
9:41 AM - 11:11 AM

Action Rating: 4 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: 7:49 AM
Sun Transit: 1:24 PM
Sunset: 6:58 PM
Daylight: 11 hrs 9 mins
Moonrise: 10:11 AM
Moon Transit: 2:54 PM
Moonset: 7:30 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

2:46 AM - 5:16 AM
2:24 PM - 4:54 PM

Minor Periods

7:00 PM - 8:30 PM
9:41 AM - 11:11 AM

Action Rating: 4 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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