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

Current Water Temperature

32.4°F

Measurement Time: Thursday, January 1, 2026, 5:30 AM EST

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

12.2°F
Overcast
Overcast
-0.7°F
9.5°F
72%
W 9.8 mph
12.2 mph
-3.4°F
6°F
0 in
100%
8 mi
1010 mbar
0.7

Five Day Weather Forecast

Light freezing rain
Thu
H: 15°F
L: -1°F
Cloudy
Fri
H: 23°F
L: 15°F
Cloudy
Sat
H: 27°F
L: 18°F
Light snow
Sun
H: 22°F
L: 12°F
Light snow
Mon
H: 26°F
L: 14°F

Air Quality

AQI: 1 - Good
PM2.5: 1.25 μg/m3
PM10: 1.35 μg/m3
Carbon Monoxide: 144.85 μg/m3
Nitrogen Dioxide: 1.35 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 12:41 AM
Sunset: 5:08 PM
Daylight: 8 hrs 53 mins
Moonrise: 2:58 PM
Moon Transit: 11:25 PM
Moonset: 6:44 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

11:08 AM - 1:38 PM
12:00 AM - 12:00 AM

Minor Periods

2:28 PM - 3:58 PM
6:14 AM - 7:44 AM

Action Rating: 2 out of 5

Winter Storm Warning issued December 31 at 9:56PM EST until January 1 at 7:00AM EST by NWS Gaylord MI

Effective: Wed December 31, 2025, 9:56 PM
Expires: Thu January 1, 2026, 7:00 AM

* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 inches, with locally higher amounts up to 6 inches. Winds gusting as high as 30 mph. * WHERE...Antrim, Crawford, Kalkaska, and Otsego Counties. * WHEN...Until 7 AM EST Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Thursday morning commute.

Roads will be snow-covered and slippery. Be sure to travel at an appropriate speed for the weather conditions. During lake effect snow, the weather can vary from bands of locally heavy snow to dry weather just a few miles away. Visibilities can also vary greatly. Be prepared for rapid changes in weather, visibility, and road conditions.


Winter Weather Advisory issued December 31 at 9:56PM EST until January 1 at 7:00AM EST by NWS Gaylord MI

Effective: Wed December 31, 2025, 9:56 PM
Expires: Thu January 1, 2026, 7:00 AM

* WHAT...Snow. Additional snow accumulations up to two inches, with locally higher amounts possible. Winds gusting as high as 30 mph. * WHERE...Missaukee and Roscommon Counties. * WHEN...Until 7 AM EST Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the New Years Eve and Day commutes.

Slow down and use caution while traveling.
Thursday, January 1, 2026

Weather Forecast

Light freezing rain
14.7°F
-0.9°F
8.3°F
73%
0.08 in
77%
60%
11.9 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.23 μg/m3
PM10: 1.34 μg/m3
Carbon Monoxide: 148.21 μg/m3
Nitrogen Dioxide: 1.57 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 78.36 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 12:41 AM
Sunset: 5:08 PM
Daylight: 8 hrs 53 mins
Moonrise: 2:58 PM
Moon Transit: 11:25 PM
Moonset: 6:44 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.0%

Best Times for Fishing or Hunting

Major Periods

11:08 AM - 1:38 PM
12:00 AM - 12:00 AM

Minor Periods

2:28 PM - 3:58 PM
6:14 AM - 7:44 AM

Action Rating: 2 out of 5

Friday, January 2, 2026

Weather Forecast

Cloudy
23°F
14.9°F
19.7°F
79%
0 in
0%
0%
11.2 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.59 μg/m3
PM10: 1.67 μg/m3
Carbon Monoxide: 154.13 μg/m3
Nitrogen Dioxide: 2.04 μg/m3
Sulphur Dioxide: 1.39 μg/m3
Ozone: 79.32 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 12:42 AM
Sunset: 5:09 PM
Daylight: 8 hrs 54 mins
Moonrise: 4:05 PM
Moon Transit: 12:00 AM
Moonset: 7:55 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:15 AM - 2:45 PM

Minor Periods

3:35 PM - 5:05 PM
7:25 AM - 8:55 AM

Action Rating: 4 out of 5

Saturday, January 3, 2026

Weather Forecast

Cloudy
26.8°F
18.2°F
23.1°F
79%
0 in
0%
7%
7.6 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 1.55 μg/m3
PM10: 1.57 μg/m3
Carbon Monoxide: 152.73 μg/m3
Nitrogen Dioxide: 2.22 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 78.76 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 12:42 AM
Sunset: 5:10 PM
Daylight: 8 hrs 55 mins
Moonrise: 5:23 PM
Moon Transit: 12:32 AM
Moonset: 8:52 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:02 AM - 2:32 AM
1:20 PM - 3:50 PM

Minor Periods

4:53 PM - 6:23 PM
8:22 AM - 9:52 AM

Action Rating: 5 out of 5

Sunday, January 4, 2026

Weather Forecast

Light snow
22.4°F
11.7°F
17.4°F
90%
0.02 in
74%
63%
10.3 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.41 μg/m3
PM10: 1.44 μg/m3
Carbon Monoxide: 155.07 μg/m3
Nitrogen Dioxide: 2.18 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 77.96 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 12:42 AM
Sunset: 5:11 PM
Daylight: 8 hrs 56 mins
Moonrise: 6:45 PM
Moon Transit: 1:35 AM
Moonset: 9:34 AM
Moon Phase: Full
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

1:05 AM - 3:35 AM
2:21 PM - 4:51 PM

Minor Periods

6:15 PM - 7:45 PM
9:04 AM - 10:34 AM

Action Rating: 4 out of 5

Monday, January 5, 2026

Weather Forecast

Light snow
26.3°F
14.2°F
19.5°F
93%
0.01 in
62%
56%
5.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.26 μg/m3
PM10: 3.31 μg/m3
Carbon Monoxide: 190.52 μg/m3
Nitrogen Dioxide: 4.5 μg/m3
Sulphur Dioxide: 1.61 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 12:43 AM
Sunset: 5:12 PM
Daylight: 8 hrs 57 mins
Moonrise: 8:05 PM
Moon Transit: 2:33 AM
Moonset: 10:06 AM
Moon Phase: Full
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

2:03 AM - 4:33 AM
3:16 PM - 5:46 PM

Minor Periods

7:35 PM - 9:05 PM
9:36 AM - 11:06 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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