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

Current Water Temperature

56.8°F

Measurement Time: Sunday, May 31, 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

55.8°F
Sunny
Sunny
56°F
55.8°F
55%
W 4.7 mph
5.4 mph
56°F
40°F
0 in
0%
6 mi
1022 mbar
1.8

Five Day Weather Forecast

Sunny
Sun
H: 77°F
L: 41°F
Sunny
Mon
H: 70°F
L: 45°F
Sunny
Tue
H: 75°F
L: 48°F
Sunny
Wed
H: 79°F
L: 49°F
Sunny
Thu
H: 80°F
L: 51°F

Air Quality

AQI: 1 - Good
PM2.5: 4.25 μg/m3
PM10: 4.35 μg/m3
Carbon Monoxide: 113.85 μg/m3
Nitrogen Dioxide: 2.75 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:35 PM
Sunset: 9:15 PM
Daylight: 15 hrs 19 mins
Moonrise: 10:14 PM
Moon Transit: 1:25 AM
Moonset: 5:32 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:55 AM - 3:25 AM
2:06 PM - 4:36 PM

Minor Periods

9:44 PM - 11:14 PM
5:02 AM - 6:32 AM

Action Rating: 4 out of 5

Special Weather Statement issued May 31 at 7:26AM EDT by NWS Gaylord MI

Effective: Sun May 31, 2026, 7:26 AM
Expires: Sun May 31, 2026, 8:00 PM

The combination of drying fuels, low relative humidity values, and breezy winds will result in elevated fire danger conditions across northern lower Michigan today. Northwest winds between 5-10 mph will gust to 15 mph at times through this afternoon. Relative humidity values between 15-30 percent are expected across parts of interior northern Michigan with the potential for localized minimum relative humidity readings in the low teens. These conditions support the quick start and spread of wildfires, so be sure to take the proper precautions to prevent fires from starting.


Sunday, May 31, 2026

Weather Forecast

Sunny
77.2°F
41°F
58.3°F
52%
0 in
0%
0%
9.6 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 3.42 μg/m3
PM10: 3.6 μg/m3
Carbon Monoxide: 121.1 μg/m3
Nitrogen Dioxide: 2.22 μg/m3
Sulphur Dioxide: 1.52 μg/m3
Ozone: 75.38 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:35 PM
Sunset: 9:15 PM
Daylight: 15 hrs 19 mins
Moonrise: 10:14 PM
Moon Transit: 1:25 AM
Moonset: 5:32 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:55 AM - 3:25 AM
2:06 PM - 4:36 PM

Minor Periods

9:44 PM - 11:14 PM
5:02 AM - 6:32 AM

Action Rating: 4 out of 5

Monday, June 1, 2026

Weather Forecast

Sunny
70.1°F
45.1°F
57.6°F
52%
0 in
0%
0%
10.1 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 2.6 μg/m3
PM10: 3.09 μg/m3
Carbon Monoxide: 120.2 μg/m3
Nitrogen Dioxide: 2.11 μg/m3
Sulphur Dioxide: 0.32 μg/m3
Ozone: 70.25 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:35 PM
Sunset: 9:16 PM
Daylight: 15 hrs 20 mins
Moonrise: 11:06 PM
Moon Transit: 2:16 AM
Moonset: 6:18 AM
Moon Phase: Full
Moon Illumination: 96.8%

Best Times for Fishing or Hunting

Major Periods

1:46 AM - 4:16 AM
2:57 PM - 5:27 PM

Minor Periods

12:00 AM - 12:00 AM
5:48 AM - 7:18 AM

Action Rating: 4 out of 5

Tuesday, June 2, 2026

Weather Forecast

Sunny
75.2°F
48.2°F
61.2°F
48%
0 in
0%
0%
7.4 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 5.59 μg/m3
PM10: 6.33 μg/m3
Carbon Monoxide: 124.65 μg/m3
Nitrogen Dioxide: 1.57 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 76.5 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:35 PM
Sunset: 9:17 PM
Daylight: 15 hrs 22 mins
Moonrise: 12:06 AM
Moon Transit: 3:07 AM
Moonset: 7:11 AM
Moon Phase: Full
Moon Illumination: 91.7%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
3:49 PM - 6:19 PM

Minor Periods

6:41 AM - 8:11 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, June 3, 2026

Weather Forecast

Sunny
79.3°F
48.9°F
63.6°F
51%
0 in
0%
0%
4.7 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 5.48 μg/m3
PM10: 6.63 μg/m3
Carbon Monoxide: 138.51 μg/m3
Nitrogen Dioxide: 1.97 μg/m3
Sulphur Dioxide: 0.39 μg/m3
Ozone: 84.33 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:36 PM
Sunset: 9:18 PM
Daylight: 15 hrs 23 mins
Moonrise: 12:49 AM
Moon Transit: 3:58 AM
Moonset: 8:12 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.4%

Best Times for Fishing or Hunting

Major Periods

3:28 AM - 5:58 AM
4:39 PM - 7:09 PM

Minor Periods

7:42 AM - 9:12 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Thursday, June 4, 2026

Weather Forecast

Sunny
80.3°F
51.2°F
62.9°F
58%
0 in
0%
0%
10.3 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 4.77 μg/m3
PM10: 5.77 μg/m3
Carbon Monoxide: 158.67 μg/m3
Nitrogen Dioxide: 3.77 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 77.67 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:36 PM
Sunset: 9:18 PM
Daylight: 15 hrs 24 mins
Moonrise: 12:25 AM
Moon Transit: 4:47 AM
Moonset: 9:16 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.3%

Best Times for Fishing or Hunting

Major Periods

4:17 AM - 6:47 AM
5:26 PM - 7:56 PM

Minor Periods

8:46 AM - 10:16 AM
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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