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

Current Water Temperature

59.5°F

Measurement Time: Tuesday, September 8, 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

59°F
Partly Sunny
Partly Sunny
83%
0 mph
54°F

Weather Forecast

Mostly Cloudy then Slight Chance Rain Showers
Today
75°F - Mostly Cloudy then Slight Chance Rain Showers
Showers And Thunderstorms Likely
Tonight
66°F - Showers And Thunderstorms Likely
Showers And Thunderstorms Likely
Wednesday
77°F - Showers And Thunderstorms Likely
Mostly Clear
Wednesday Night
53°F - Mostly Clear
Sunny
Thursday
71°F - Sunny
Clear
Thursday Night
44°F - Clear
Sunny
Friday
75°F - Sunny
Partly Cloudy
Friday Night
54°F - Partly Cloudy
Slight Chance Rain Showers
Saturday
75°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Saturday Night
52°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Sunday
71°F - Slight Chance Rain Showers
Chance Rain Showers
Sunday Night
50°F - Chance Rain Showers
Chance Rain Showers then Slight Chance Showers And Thunderstorms
Monday
70°F - Chance Rain Showers then Slight Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Monday Night
52°F - Chance Showers And Thunderstorms

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: 7:08 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

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

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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