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

Current Water Temperature

57.0°F

Measurement Time: Friday, September 11, 2026, 5:30 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

58°F
Sunny
Sunny
72%
SW 5 mph
49°F

Weather Forecast

Sunny
Today
78°F - Sunny
Partly Cloudy
Tonight
50°F - Partly Cloudy
Partly Sunny then Chance Rain Showers
Saturday
81°F - Partly Sunny then Chance Rain Showers
Chance Rain Showers
Saturday Night
48°F - Chance Rain Showers
Patchy Fog then Slight Chance Rain Showers
Sunday
68°F - Patchy Fog then Slight Chance Rain Showers
Slight Chance Rain Showers then Patchy Fog
Sunday Night
44°F - Slight Chance Rain Showers then Patchy Fog
Chance Rain Showers
Monday
69°F - Chance Rain Showers
Showers And Thunderstorms
Monday Night
54°F - Showers And Thunderstorms
Showers And Thunderstorms
Tuesday
74°F - Showers And Thunderstorms
Slight Chance Rain Showers
Tuesday Night
46°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Wednesday
70°F - Slight Chance Rain Showers
Chance Rain Showers
Wednesday Night
47°F - Chance Rain Showers
Chance Rain Showers
Thursday
72°F - Chance Rain Showers
Slight Chance Rain Showers
Thursday Night
46°F - Slight Chance Rain Showers

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

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: 7:13 AM
Sun Transit: 1:34 PM
Sunset: 7:54 PM
Daylight: 12 hrs 41 mins
Moonrise: 8:57 AM
Moon Transit: 2:43 PM
Moonset: 8:19 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
2:13 PM - 4:43 PM

Minor Periods

7:49 PM - 9:19 PM
8:27 AM - 9:57 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: 7:13 AM
Sun Transit: 1:34 PM
Sunset: 7:54 PM
Daylight: 12 hrs 41 mins
Moonrise: 8:57 AM
Moon Transit: 2:43 PM
Moonset: 8:19 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
2:13 PM - 4:43 PM

Minor Periods

7:49 PM - 9:19 PM
8:27 AM - 9:57 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: 7:14 AM
Sun Transit: 1:33 PM
Sunset: 7:52 PM
Daylight: 12 hrs 38 mins
Moonrise: 10:09 AM
Moon Transit: 3:28 PM
Moonset: 8:39 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

3:22 AM - 5:52 AM
2:58 PM - 5:28 PM

Minor Periods

8:09 PM - 9:39 PM
9:39 AM - 11:09 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: 7:14 AM
Sun Transit: 1:33 PM
Sunset: 7:52 PM
Daylight: 12 hrs 38 mins
Moonrise: 10:09 AM
Moon Transit: 3:28 PM
Moonset: 8:39 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

3:22 AM - 5:52 AM
2:58 PM - 5:28 PM

Minor Periods

8:09 PM - 9:39 PM
9:39 AM - 11:09 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: 7:15 AM
Sun Transit: 1:33 PM
Sunset: 7:50 PM
Daylight: 12 hrs 35 mins
Moonrise: 11:19 AM
Moon Transit: 4:14 PM
Moonset: 9:02 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
3:44 PM - 6:14 PM

Minor Periods

8:32 PM - 10:02 PM
10:49 AM - 12:19 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: 7:15 AM
Sun Transit: 1:33 PM
Sunset: 7:50 PM
Daylight: 12 hrs 35 mins
Moonrise: 11:19 AM
Moon Transit: 4:14 PM
Moonset: 9:02 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
3:44 PM - 6:14 PM

Minor Periods

8:32 PM - 10:02 PM
10:49 AM - 12:19 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: 7:17 AM
Sun Transit: 1:32 PM
Sunset: 7:48 PM
Daylight: 12 hrs 32 mins
Moonrise: 12:29 AM
Moon Transit: 5:02 PM
Moonset: 9:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

4:54 AM - 7:24 AM
4:32 PM - 7:02 PM

Minor Periods

8:59 PM - 10:29 PM
11:59 AM - 1:29 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: 7:17 AM
Sun Transit: 1:32 PM
Sunset: 7:48 PM
Daylight: 12 hrs 32 mins
Moonrise: 12:29 AM
Moon Transit: 5:02 PM
Moonset: 9:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

4:54 AM - 7:24 AM
4:32 PM - 7:02 PM

Minor Periods

8:59 PM - 10:29 PM
11:59 AM - 1:29 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: 7:18 AM
Sun Transit: 1:32 PM
Sunset: 7:46 PM
Daylight: 12 hrs 29 mins
Moonrise: 1:36 PM
Moon Transit: 5:51 PM
Moonset: 10:03 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

5:42 AM - 8:12 AM
5:21 PM - 7:51 PM

Minor Periods

9:33 PM - 11:03 PM
1:06 PM - 2:36 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: 7:18 AM
Sun Transit: 1:32 PM
Sunset: 7:46 PM
Daylight: 12 hrs 29 mins
Moonrise: 1:36 PM
Moon Transit: 5:51 PM
Moonset: 10:03 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

5:42 AM - 8:12 AM
5:21 PM - 7:51 PM

Minor Periods

9:33 PM - 11:03 PM
1:06 PM - 2:36 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: 7:19 AM
Sun Transit: 1:32 PM
Sunset: 7:44 PM
Daylight: 12 hrs 25 mins
Moonrise: 2:39 PM
Moon Transit: 6:42 PM
Moonset: 10:45 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

6:33 AM - 9:03 AM
6:12 PM - 8:42 PM

Minor Periods

10:15 PM - 11:45 PM
2:09 PM - 3:39 PM

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: 7:19 AM
Sun Transit: 1:32 PM
Sunset: 7:44 PM
Daylight: 12 hrs 25 mins
Moonrise: 2:39 PM
Moon Transit: 6:42 PM
Moonset: 10:45 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

6:33 AM - 9:03 AM
6:12 PM - 8:42 PM

Minor Periods

10:15 PM - 11:45 PM
2:09 PM - 3:39 PM

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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