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

Current Water Temperature

32.4°F

Measurement Time: Tuesday, January 27, 2026, 2:30 PM 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

9.1°F
Light snow
Light snow
-4.9°F
6.5°F
85%
WNW 10.3 mph
15 mph
-7.7°F
2.1°F
0 in
100%
2 mi
1016 mbar
0

Five Day Weather Forecast

Light freezing rain
Tue
H: 14°F
L: 5°F
Light freezing rain
Wed
H: 14°F
L: 2°F
Sunny
Thu
H: 12°F
L: 0°F
Partly Cloudy
Fri
H: 9°F
L: -4°F
Light freezing rain
Sat
H: 14°F
L: 4°F

Air Quality

AQI: 1 - Good
PM2.5: 2.65 μg/m3
PM10: 2.65 μg/m3
Carbon Monoxide: 177.85 μg/m3
Nitrogen Dioxide: 2.05 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 78 μg/m3

Astronomical

Sunrise: 8:02 AM
Sun Transit: 12:50 AM
Sunset: 5:40 PM
Daylight: 9 hrs 38 mins
Moonrise: 12:00 AM
Moon Transit: 8:05 PM
Moonset: 3:04 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

7:52 AM - 10:22 AM
7:35 PM - 10:05 PM

Minor Periods

11:30 AM - 1:00 PM
2:34 AM - 4:04 AM

Action Rating: 3 out of 5

Winter Weather Advisory issued January 27 at 10:42AM EST until January 27 at 7:00PM EST by NWS Gaylord MI

Effective: Tue January 27, 2026, 10:42 AM
Expires: Tue January 27, 2026, 7:00 PM

* WHAT...Snow. Additional localized snow accumulations up to two inches. * WHERE...A portion of Northern Lower Michigan. * WHEN...Until 7 PM EST this evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Tuesday evening commute.

Slow down and use caution while traveling. Be prepared for slippery roads. Slow down and use caution while driving. 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.
Tuesday, January 27, 2026

Weather Forecast

Light freezing rain
13.5°F
5°F
8.7°F
75%
0.07 in
88%
71%
13.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.18 μg/m3
PM10: 5.36 μg/m3
Carbon Monoxide: 188.97 μg/m3
Nitrogen Dioxide: 2.97 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 73 μg/m3

Astronomical

Sunrise: 8:02 AM
Sun Transit: 12:50 AM
Sunset: 5:40 PM
Daylight: 9 hrs 38 mins
Moonrise: 12:00 AM
Moon Transit: 8:05 PM
Moonset: 3:04 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

7:52 AM - 10:22 AM
7:35 PM - 10:05 PM

Minor Periods

11:30 AM - 1:00 PM
2:34 AM - 4:04 AM

Action Rating: 3 out of 5

Wednesday, January 28, 2026

Weather Forecast

Light freezing rain
14.2°F
2.1°F
8.3°F
78%
0.01 in
60%
19%
10.7 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 2.29 μg/m3
PM10: 2.33 μg/m3
Carbon Monoxide: 169.25 μg/m3
Nitrogen Dioxide: 2 μg/m3
Sulphur Dioxide: 1.09 μg/m3
Ozone: 76.04 μg/m3

Astronomical

Sunrise: 8:01 AM
Sun Transit: 12:50 AM
Sunset: 5:41 PM
Daylight: 9 hrs 40 mins
Moonrise: 12:45 AM
Moon Transit: 9:08 PM
Moonset: 4:24 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

8:52 AM - 11:22 AM
8:38 PM - 11:08 PM

Minor Periods

12:15 AM - 1:45 PM
3:54 AM - 5:24 AM

Action Rating: 2 out of 5

Thursday, January 29, 2026

Weather Forecast

Sunny
11.5°F
0.3°F
5.2°F
65%
0 in
0%
0%
8.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.6 μg/m3
PM10: 1.65 μg/m3
Carbon Monoxide: 164.29 μg/m3
Nitrogen Dioxide: 2.43 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 8:00 AM
Sun Transit: 12:50 AM
Sunset: 5:42 PM
Daylight: 9 hrs 43 mins
Moonrise: 1:43 PM
Moon Transit: 10:13 PM
Moonset: 5:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.7%

Best Times for Fishing or Hunting

Major Periods

9:56 AM - 12:26 AM
12:00 AM - 12:00 AM

Minor Periods

1:13 PM - 2:43 PM
5:07 AM - 6:37 AM

Action Rating: 2 out of 5

Friday, January 30, 2026

Weather Forecast

Partly Cloudy
8.7°F
-4°F
2.4°F
70%
0 in
0%
6%
7.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.86 μg/m3
PM10: 2 μg/m3
Carbon Monoxide: 166.55 μg/m3
Nitrogen Dioxide: 2.15 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 70.64 μg/m3

Astronomical

Sunrise: 7:59 AM
Sun Transit: 12:51 AM
Sunset: 5:44 PM
Daylight: 9 hrs 45 mins
Moonrise: 2:55 PM
Moon Transit: 11:16 PM
Moonset: 6:39 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.4%

Best Times for Fishing or Hunting

Major Periods

11:01 AM - 1:31 PM
12:00 AM - 12:00 AM

Minor Periods

2:25 PM - 3:55 PM
6:09 AM - 7:39 AM

Action Rating: 3 out of 5

Saturday, January 31, 2026

Weather Forecast

Light freezing rain
14.1°F
3.8°F
8.1°F
89%
0.02 in
67%
55%
9.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.71 μg/m3
PM10: 1.86 μg/m3
Carbon Monoxide: 163.23 μg/m3
Nitrogen Dioxide: 2.17 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 76.23 μg/m3

Astronomical

Sunrise: 7:58 AM
Sun Transit: 12:51 AM
Sunset: 5:45 PM
Daylight: 9 hrs 48 mins
Moonrise: 4:15 PM
Moon Transit: 12:00 AM
Moonset: 7:26 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:03 AM - 2:33 PM

Minor Periods

3:45 PM - 5:15 PM
6:56 AM - 8:26 AM

Action Rating: 4 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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