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

Current Water Temperature

64.2°F

Measurement Time: Wednesday, September 2, 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

72°F
Chance Rain Showers
Chance Rain Showers
93%
0 mph
70°F

Weather Forecast

Chance Showers And Thunderstorms
Today
78°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms then Patchy Fog
Tonight
59°F - Chance Showers And Thunderstorms then Patchy Fog
Patchy Fog
Thursday
79°F - Patchy Fog
Slight Chance Rain Showers then Patchy Fog
Thursday Night
60°F - Slight Chance Rain Showers then Patchy Fog
Patchy Fog
Friday
77°F - Patchy Fog
Slight Chance Rain Showers then Patchy Fog
Friday Night
58°F - Slight Chance Rain Showers then Patchy Fog
Patchy Fog then Mostly Sunny
Saturday
78°F - Patchy Fog then Mostly Sunny
Mostly Clear
Saturday Night
51°F - Mostly Clear
Mostly Sunny
Sunday
77°F - Mostly Sunny
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
Sunday Night
54°F - Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Labor Day
76°F - Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms then Mostly Cloudy
Monday Night
52°F - Slight Chance Showers And Thunderstorms then Mostly Cloudy
Slight Chance Rain Showers
Tuesday
71°F - Slight Chance Rain Showers
Chance Rain Showers
Tuesday Night
55°F - Chance Rain Showers

Astronomical

Sunrise: 7:02 AM
Sun Transit: 1:37 PM
Sunset: 8:13 PM
Daylight: 13 hrs 11 mins
Moonrise: 10:29 PM
Moon Transit: 5:34 AM
Moonset: 1:27 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

5:04 AM - 7:34 AM
6:17 PM - 8:47 PM

Minor Periods

9:59 PM - 11:29 PM
12:57 AM - 2:27 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: 7:02 AM
Sun Transit: 1:37 PM
Sunset: 8:13 PM
Daylight: 13 hrs 11 mins
Moonrise: 10:29 PM
Moon Transit: 5:34 AM
Moonset: 1:27 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

5:04 AM - 7:34 AM
6:17 PM - 8:47 PM

Minor Periods

9:59 PM - 11:29 PM
12:57 AM - 2:27 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: 7:02 AM
Sun Transit: 1:37 PM
Sunset: 8:13 PM
Daylight: 13 hrs 11 mins
Moonrise: 10:29 PM
Moon Transit: 5:34 AM
Moonset: 1:27 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

5:04 AM - 7:34 AM
6:17 PM - 8:47 PM

Minor Periods

9:59 PM - 11:29 PM
12:57 AM - 2:27 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: 7:03 AM
Sun Transit: 1:37 PM
Sunset: 8:11 PM
Daylight: 13 hrs 8 mins
Moonrise: 11:11 PM
Moon Transit: 6:30 AM
Moonset: 2:45 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

6:00 AM - 8:30 AM
7:16 PM - 9:46 PM

Minor Periods

12:00 AM - 12:00 AM
2:15 PM - 3:45 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: 7:03 AM
Sun Transit: 1:37 PM
Sunset: 8:11 PM
Daylight: 13 hrs 8 mins
Moonrise: 11:11 PM
Moon Transit: 6:30 AM
Moonset: 2:45 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

6:00 AM - 8:30 AM
7:16 PM - 9:46 PM

Minor Periods

12:00 AM - 12:00 AM
2:15 PM - 3:45 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: 7:04 AM
Sun Transit: 1:36 PM
Sunset: 8:09 PM
Daylight: 13 hrs 5 mins
Moonrise: 12:11 AM
Moon Transit: 7:31 AM
Moonset: 3:57 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

7:01 AM - 9:31 AM
8:18 PM - 10:48 PM

Minor Periods

3:27 PM - 4:57 PM
12:00 AM - 12:00 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: 7:04 AM
Sun Transit: 1:36 PM
Sunset: 8:09 PM
Daylight: 13 hrs 5 mins
Moonrise: 12:11 AM
Moon Transit: 7:31 AM
Moonset: 3:57 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

7:01 AM - 9:31 AM
8:18 PM - 10:48 PM

Minor Periods

3:27 PM - 4:57 PM
12:00 AM - 12:00 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: 7:05 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

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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