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

Current Water Temperature

62.6°F

Measurement Time: Saturday, September 5, 2026, 3:30 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

64°F
Mostly Sunny
Mostly Sunny
84%
0 mph
59°F

Weather Forecast

Sunny
Today
78°F - Sunny
Mostly Clear then Patchy Fog
Tonight
46°F - Mostly Clear then Patchy Fog
Mostly Sunny
Sunday
77°F - Mostly Sunny
Partly Cloudy
Sunday Night
48°F - Partly Cloudy
Mostly Sunny
Labor Day
79°F - Mostly Sunny
Mostly Cloudy
Monday Night
54°F - Mostly Cloudy
Slight Chance Rain Showers
Tuesday
77°F - Slight Chance Rain Showers
Showers And Thunderstorms
Tuesday Night
64°F - Showers And Thunderstorms
Showers And Thunderstorms
Wednesday
80°F - Showers And Thunderstorms
Partly Cloudy
Wednesday Night
55°F - Partly Cloudy
Partly Sunny
Thursday
70°F - Partly Sunny
Partly Cloudy
Thursday Night
48°F - Partly Cloudy
Mostly Sunny then Slight Chance Rain Showers
Friday
74°F - Mostly Sunny then Slight Chance Rain Showers
Slight Chance Rain Showers
Friday Night
52°F - Slight Chance Rain Showers

Astronomical

Sunrise: 7:05 AM
Sun Transit: 1:36 PM
Sunset: 8:07 PM
Daylight: 13 hrs 2 mins
Moonrise: 12:06 AM
Moon Transit: 8:33 AM
Moonset: 4:59 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
9:21 PM - 11:51 PM

Minor Periods

4:29 PM - 5:59 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: 7:05 AM
Sun Transit: 1:36 PM
Sunset: 8:07 PM
Daylight: 13 hrs 2 mins
Moonrise: 12:06 AM
Moon Transit: 8:33 AM
Moonset: 4:59 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
9:21 PM - 11:51 PM

Minor Periods

4:29 PM - 5:59 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: 7:05 AM
Sun Transit: 1:36 PM
Sunset: 8:07 PM
Daylight: 13 hrs 2 mins
Moonrise: 12:06 AM
Moon Transit: 8:33 AM
Moonset: 4:59 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
9:21 PM - 11:51 PM

Minor Periods

4:29 PM - 5:59 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: 7:06 AM
Sun Transit: 1:36 PM
Sunset: 8:05 PM
Daylight: 12 hrs 59 mins
Moonrise: 1:14 AM
Moon Transit: 9:36 AM
Moonset: 5:48 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:06 AM - 11:36 AM

Minor Periods

5:18 PM - 6:48 PM
12:44 AM - 2:14 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: 7:06 AM
Sun Transit: 1:36 PM
Sunset: 8:05 PM
Daylight: 12 hrs 59 mins
Moonrise: 1:14 AM
Moon Transit: 9:36 AM
Moonset: 5:48 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:06 AM - 11:36 AM

Minor Periods

5:18 PM - 6:48 PM
12:44 AM - 2:14 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: 7:07 AM
Sun Transit: 1:35 PM
Sunset: 8:03 PM
Daylight: 12 hrs 56 mins
Moonrise: 2:32 AM
Moon Transit: 10:36 AM
Moonset: 6:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:56 PM - 7:26 PM
2:02 AM - 3:32 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: 7:07 AM
Sun Transit: 1:35 PM
Sunset: 8:03 PM
Daylight: 12 hrs 56 mins
Moonrise: 2:32 AM
Moon Transit: 10:36 AM
Moonset: 6:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:56 PM - 7:26 PM
2:02 AM - 3:32 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: 7:08 AM
Sun Transit: 1:35 PM
Sunset: 8:01 PM
Daylight: 12 hrs 53 mins
Moonrise: 3:53 AM
Moon Transit: 11:32 AM
Moonset: 6:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:02 AM - 1:32 PM

Minor Periods

6:26 PM - 7:56 PM
3:23 AM - 4:53 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: 7:08 AM
Sun Transit: 1:35 PM
Sunset: 8:01 PM
Daylight: 12 hrs 53 mins
Moonrise: 3:53 AM
Moon Transit: 11:32 AM
Moonset: 6:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:02 AM - 1:32 PM

Minor Periods

6:26 PM - 7:56 PM
3:23 AM - 4:53 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: 7:10 AM
Sun Transit: 1:35 PM
Sunset: 8:00 PM
Daylight: 12 hrs 50 mins
Moonrise: 5:13 AM
Moon Transit: 12:24 AM
Moonset: 7:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:14 AM - 2:44 AM
11:54 AM - 2:24 PM

Minor Periods

6:49 PM - 8:19 PM
4:43 AM - 6:13 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: 7:10 AM
Sun Transit: 1:35 PM
Sunset: 8:00 PM
Daylight: 12 hrs 50 mins
Moonrise: 5:13 AM
Moon Transit: 12:24 AM
Moonset: 7:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:14 AM - 2:44 AM
11:54 AM - 2:24 PM

Minor Periods

6:49 PM - 8:19 PM
4:43 AM - 6:13 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: 7:11 AM
Sun Transit: 1:34 PM
Sunset: 7:58 PM
Daylight: 12 hrs 47 mins
Moonrise: 6:31 AM
Moon Transit: 1:12 PM
Moonset: 7:40 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:04 AM - 3:34 AM
12:42 AM - 3:12 PM

Minor Periods

7:10 PM - 8:40 PM
6:01 AM - 7:31 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: 7:11 AM
Sun Transit: 1:34 PM
Sunset: 7:58 PM
Daylight: 12 hrs 47 mins
Moonrise: 6:31 AM
Moon Transit: 1:12 PM
Moonset: 7:40 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

1:04 AM - 3:34 AM
12:42 AM - 3:12 PM

Minor Periods

7:10 PM - 8:40 PM
6:01 AM - 7:31 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: 7:12 AM
Sun Transit: 1:34 PM
Sunset: 7:56 PM
Daylight: 12 hrs 44 mins
Moonrise: 7:45 AM
Moon Transit: 1:58 PM
Moonset: 7:59 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

1:51 AM - 4:21 AM
1:28 PM - 3:58 PM

Minor Periods

7:29 PM - 8:59 PM
7:15 AM - 8:45 AM

Action Rating: 5 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: 7:12 AM
Sun Transit: 1:34 PM
Sunset: 7:56 PM
Daylight: 12 hrs 44 mins
Moonrise: 7:45 AM
Moon Transit: 1:58 PM
Moonset: 7:59 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

1:51 AM - 4:21 AM
1:28 PM - 3:58 PM

Minor Periods

7:29 PM - 8:59 PM
7:15 AM - 8:45 AM

Action Rating: 5 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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