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

Current Water Temperature

32.9°F

Measurement Time: Monday, February 23, 2026, 2:30 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
Light snow
Light snow
-2.2°F
8.9°F
78%
NNW 12.1 mph
14.9 mph
-4.8°F
3.1°F
0 in
100%
4 mi
1025 mbar
0.1

Five Day Weather Forecast

Overcast
Mon
H: 19°F
L: 7°F
Moderate or heavy snow showers
Tue
H: 20°F
L: 6°F
Moderate or heavy snow showers
Wed
H: 21°F
L: 17°F
Heavy snow
Thu
H: 23°F
L: 13°F
Freezing fog
Fri
H: 32°F
L: 9°F

Air Quality

AQI: 1 - Good
PM2.5: 2.35 μg/m3
PM10: 2.65 μg/m3
Carbon Monoxide: 146.85 μg/m3
Nitrogen Dioxide: 1.35 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:51 AM
Sunset: 6:18 PM
Daylight: 10 hrs 53 mins
Moonrise: 10:01 AM
Moon Transit: 6:00 PM
Moonset: 12:53 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

5:47 AM - 8:17 AM
5:30 PM - 8:00 PM

Minor Periods

9:31 AM - 11:01 AM
12:23 AM - 1:53 AM

Action Rating: 2 out of 5

Winter Weather Advisory issued February 22 at 10:51PM EST until February 23 at 11:00AM EST by NWS Gaylord MI

Effective: Sun February 22, 2026, 10:51 PM
Expires: Mon February 23, 2026, 11:00 AM

* WHAT...Snow. Additional snow accumulations up to 3 inches. * WHERE...Alcona, Alpena, and Presque Isle Counties. * WHEN...Until 11 AM EST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Monday morning commute.

Slow down and use caution while traveling.
Monday, February 23, 2026

Weather Forecast

Overcast
18.9°F
7°F
13.2°F
79%
0 in
0%
0%
13.2 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 2.99 μg/m3
PM10: 3.33 μg/m3
Carbon Monoxide: 151.97 μg/m3
Nitrogen Dioxide: 1.91 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 78.96 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:51 AM
Sunset: 6:18 PM
Daylight: 10 hrs 53 mins
Moonrise: 10:01 AM
Moon Transit: 6:00 PM
Moonset: 12:53 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

5:47 AM - 8:17 AM
5:30 PM - 8:00 PM

Minor Periods

9:31 AM - 11:01 AM
12:23 AM - 1:53 AM

Action Rating: 2 out of 5

Tuesday, February 24, 2026

Weather Forecast

Moderate or heavy snow showers
19.8°F
5.7°F
12.9°F
75%
0.35 in
83%
21%
10.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 2.71 μg/m3
PM10: 2.89 μg/m3
Carbon Monoxide: 158.17 μg/m3
Nitrogen Dioxide: 2.81 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 80.6 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:50 AM
Sunset: 6:19 PM
Daylight: 10 hrs 56 mins
Moonrise: 10:41 AM
Moon Transit: 7:00 PM
Moonset: 2:13 AM
Moon Phase: First Quarter
Moon Illumination: 51.1%

Best Times for Fishing or Hunting

Major Periods

6:45 AM - 9:15 AM
6:30 PM - 9:00 PM

Minor Periods

10:11 AM - 11:41 AM
1:43 AM - 3:13 AM

Action Rating: 3 out of 5

Wednesday, February 25, 2026

Weather Forecast

Moderate or heavy snow showers
21.3°F
17.2°F
19.6°F
80%
0.76 in
71%
19%
12.1 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 3.28 μg/m3
PM10: 3.37 μg/m3
Carbon Monoxide: 176.17 μg/m3
Nitrogen Dioxide: 3.51 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 75.76 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:50 AM
Sunset: 6:21 PM
Daylight: 10 hrs 59 mins
Moonrise: 11:34 AM
Moon Transit: 8:02 PM
Moonset: 3:27 AM
Moon Phase: First Quarter
Moon Illumination: 62.3%

Best Times for Fishing or Hunting

Major Periods

7:47 AM - 10:17 AM
7:32 PM - 10:02 PM

Minor Periods

11:04 AM - 12:34 AM
2:57 AM - 4:27 AM

Action Rating: 3 out of 5

Thursday, February 26, 2026

Weather Forecast

Heavy snow
23.1°F
13°F
18.7°F
89%
0.11 in
69%
40%
10.3 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.76 μg/m3
PM10: 2.88 μg/m3
Carbon Monoxide: 173.92 μg/m3
Nitrogen Dioxide: 3.24 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 80.08 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:50 AM
Sunset: 6:22 PM
Daylight: 11 hrs 2 mins
Moonrise: 12:40 AM
Moon Transit: 9:05 PM
Moonset: 4:32 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

8:50 AM - 11:20 AM
8:35 PM - 11:05 PM

Minor Periods

12:10 AM - 1:40 PM
4:02 AM - 5:32 AM

Action Rating: 2 out of 5

Friday, February 27, 2026

Weather Forecast

Freezing fog
32.1°F
9.3°F
19.4°F
92%
0 in
0%
20%
13.4 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6.86 μg/m3
PM10: 7.3 μg/m3
Carbon Monoxide: 223 μg/m3
Nitrogen Dioxide: 6.77 μg/m3
Sulphur Dioxide: 1.76 μg/m3
Ozone: 75.92 μg/m3

Astronomical

Sunrise: 7:18 AM
Sun Transit: 12:50 AM
Sunset: 6:23 PM
Daylight: 11 hrs 5 mins
Moonrise: 1:55 PM
Moon Transit: 10:04 PM
Moonset: 5:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

9:51 AM - 12:21 AM
12:00 AM - 12:00 AM

Minor Periods

1:25 PM - 2:55 PM
4:52 AM - 6:22 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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