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

Current Water Temperature

59.2°F

Measurement Time: Wednesday, August 26, 2026, 11:30 PM 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

60°F
Patchy Fog
Patchy Fog
100%
W 5 mph
60°F

Weather Forecast

Patchy Fog
Overnight
58°F - Patchy Fog
Patchy Fog then Partly Sunny
Thursday
73°F - Patchy Fog then Partly Sunny
Mostly Clear then Areas Of Fog
Thursday Night
46°F - Mostly Clear then Areas Of Fog
Areas Of Fog then Mostly Sunny
Friday
73°F - Areas Of Fog then Mostly Sunny
Mostly Clear
Friday Night
48°F - Mostly Clear
Partly Sunny
Saturday
78°F - Partly Sunny
Chance Rain Showers
Saturday Night
59°F - Chance Rain Showers
Showers And Thunderstorms Likely
Sunday
78°F - Showers And Thunderstorms Likely
Showers And Thunderstorms Likely
Sunday Night
61°F - Showers And Thunderstorms Likely
Chance Showers And Thunderstorms
Monday
81°F - Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Monday Night
62°F - Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Tuesday
81°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Tuesday Night
60°F - Chance Showers And Thunderstorms
Chance Rain Showers
Wednesday
80°F - Chance Rain Showers

Astronomical

Sunrise: 6:55 AM
Sun Transit: 1:39 PM
Sunset: 8:23 PM
Daylight: 13 hrs 29 mins
Moonrise: 8:13 PM
Moon Transit: 12:56 AM
Moonset: 6:11 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 AM
1:34 PM - 4:04 PM

Minor Periods

7:43 PM - 9:13 PM
5:41 AM - 7:11 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: 6:55 AM
Sun Transit: 1:39 PM
Sunset: 8:23 PM
Daylight: 13 hrs 29 mins
Moonrise: 8:13 PM
Moon Transit: 12:56 AM
Moonset: 6:11 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 AM
1:34 PM - 4:04 PM

Minor Periods

7:43 PM - 9:13 PM
5:41 AM - 7:11 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: 6:55 AM
Sun Transit: 1:39 PM
Sunset: 8:23 PM
Daylight: 13 hrs 29 mins
Moonrise: 8:13 PM
Moon Transit: 12:56 AM
Moonset: 6:11 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 AM
1:34 PM - 4:04 PM

Minor Periods

7:43 PM - 9:13 PM
5:41 AM - 7:11 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: 6:55 AM
Sun Transit: 1:39 PM
Sunset: 8:23 PM
Daylight: 13 hrs 29 mins
Moonrise: 8:13 PM
Moon Transit: 12:56 AM
Moonset: 6:11 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 AM
1:34 PM - 4:04 PM

Minor Periods

7:43 PM - 9:13 PM
5:41 AM - 7:11 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: 6:56 AM
Sun Transit: 1:39 PM
Sunset: 8:22 PM
Daylight: 13 hrs 26 mins
Moonrise: 8:32 PM
Moon Transit: 1:40 AM
Moonset: 7:20 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

1:10 AM - 3:40 AM
2:18 PM - 4:48 PM

Minor Periods

8:02 PM - 9:32 PM
6:50 AM - 8:20 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: 6:56 AM
Sun Transit: 1:39 PM
Sunset: 8:22 PM
Daylight: 13 hrs 26 mins
Moonrise: 8:32 PM
Moon Transit: 1:40 AM
Moonset: 7:20 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

1:10 AM - 3:40 AM
2:18 PM - 4:48 PM

Minor Periods

8:02 PM - 9:32 PM
6:50 AM - 8:20 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: 6:57 AM
Sun Transit: 1:38 PM
Sunset: 8:20 PM
Daylight: 13 hrs 23 mins
Moonrise: 8:50 PM
Moon Transit: 2:24 AM
Moonset: 8:30 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

1:54 AM - 4:24 AM
12:00 AM - 12:00 AM

Minor Periods

8:20 PM - 9:50 PM
8:00 AM - 9:30 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: 6:57 AM
Sun Transit: 1:38 PM
Sunset: 8:20 PM
Daylight: 13 hrs 23 mins
Moonrise: 8:50 PM
Moon Transit: 2:24 AM
Moonset: 8:30 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

1:54 AM - 4:24 AM
12:00 AM - 12:00 AM

Minor Periods

8:20 PM - 9:50 PM
8:00 AM - 9:30 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: 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

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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