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

Current Water Temperature

59.0°F

Measurement Time: Sunday, August 30, 2026, 1:30 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

63°F
Rain Showers
Rain Showers
93%
S 5 mph
61°F

Weather Forecast

Rain Showers
Today
73°F - Rain Showers
Areas Of Fog
Tonight
61°F - Areas Of Fog
Rain Showers Likely then Slight Chance Showers And Thunderstorms
Monday
81°F - Rain Showers Likely then Slight Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms then Mostly Cloudy
Monday Night
64°F - Slight Chance Showers And Thunderstorms then Mostly Cloudy
Mostly Sunny then Slight Chance Rain Showers
Tuesday
86°F - Mostly Sunny then Slight Chance Rain Showers
Chance Showers And Thunderstorms
Tuesday Night
63°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Wednesday
82°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Wednesday Night
57°F - Chance Showers And Thunderstorms
Slight Chance Rain Showers
Thursday
79°F - Slight Chance Rain Showers
Slight Chance Rain Showers then Partly Cloudy
Thursday Night
54°F - Slight Chance Rain Showers then Partly Cloudy
Mostly Sunny then Slight Chance Rain Showers
Friday
78°F - Mostly Sunny then Slight Chance Rain Showers
Chance Rain Showers
Friday Night
54°F - Chance Rain Showers
Chance Rain Showers then Slight Chance Showers And Thunderstorms
Saturday
78°F - Chance Rain Showers then Slight Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms then Partly Cloudy
Saturday Night
54°F - Slight Chance Showers And Thunderstorms then Partly Cloudy

Astronomical

Sunrise: 6:58 AM
Sun Transit: 1:38 PM
Sunset: 8:18 PM
Daylight: 13 hrs 20 mins
Moonrise: 9:09 PM
Moon Transit: 12:49 AM
Moonset: 9:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
12:19 AM - 2:49 AM

Minor Periods

8:39 PM - 10:09 PM
9:10 AM - 10:40 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: 6:58 AM
Sun Transit: 1:38 PM
Sunset: 8:18 PM
Daylight: 13 hrs 20 mins
Moonrise: 9:09 PM
Moon Transit: 12:49 AM
Moonset: 9:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
12:19 AM - 2:49 AM

Minor Periods

8:39 PM - 10:09 PM
9:10 AM - 10:40 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: 6:58 AM
Sun Transit: 1:38 PM
Sunset: 8:18 PM
Daylight: 13 hrs 20 mins
Moonrise: 9:09 PM
Moon Transit: 12:49 AM
Moonset: 9:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
12:19 AM - 2:49 AM

Minor Periods

8:39 PM - 10:09 PM
9:10 AM - 10:40 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: 6:59 AM
Sun Transit: 1:38 PM
Sunset: 8:16 PM
Daylight: 13 hrs 17 mins
Moonrise: 9:30 PM
Moon Transit: 3:53 AM
Moonset: 10:54 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

3:23 AM - 5:53 AM
4:33 PM - 7:03 PM

Minor Periods

9:00 PM - 10:30 PM
10:24 AM - 11:54 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: 6:59 AM
Sun Transit: 1:38 PM
Sunset: 8:16 PM
Daylight: 13 hrs 17 mins
Moonrise: 9:30 PM
Moon Transit: 3:53 AM
Moonset: 10:54 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

3:23 AM - 5:53 AM
4:33 PM - 7:03 PM

Minor Periods

9:00 PM - 10:30 PM
10:24 AM - 11:54 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: 7:00 AM
Sun Transit: 1:37 PM
Sunset: 8:14 PM
Daylight: 13 hrs 14 mins
Moonrise: 9:56 PM
Moon Transit: 4:42 AM
Moonset: 12:09 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
5:23 PM - 7:53 PM

Minor Periods

9:26 PM - 10:56 PM
11:39 AM - 1:09 PM

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: 7:00 AM
Sun Transit: 1:37 PM
Sunset: 8:14 PM
Daylight: 13 hrs 14 mins
Moonrise: 9:56 PM
Moon Transit: 4:42 AM
Moonset: 12:09 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
5:23 PM - 7:53 PM

Minor Periods

9:26 PM - 10:56 PM
11:39 AM - 1:09 PM

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: 7:02 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

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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