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

Current Water Temperature

36.3°F

Measurement Time: Thursday, December 25, 2025, 3:30 PM EST

Temperature Locations

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Local Points of Interest

Au Sable State Forest-Grayling Unit; Luzerne, MI

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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

23.9°F
Cloudy
Conditions: Cloudy
Humidity: 76%
Heat Index: 23.9°F
Feels Like: 14°F
Wind: E 6.2 mph
Wind Gusts: 17 mph
Wind Chill: 14°F
Air Pressure: 1025.52 millibars
Dew Point: 14°F
Chance of Precipitation: 0%
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 10 mi
UV Index: 0

Five Day Weather Forecast

Overcast
Thu
H: 32°F
L: 24°F
Moderate or heavy snow showers
Fri
H: 28°F
L: 23°F
Overcast
Sat
H: 29°F
L: 26°F
Light freezing rain
Sun
H: 33°F
L: 28°F
Blowing snow
Mon
H: 31°F
L: 17°F

Air Quality

AQI: 1 - Good
PM2.5: 1.15 μg/m3
PM10: 1.25 μg/m3
Carbon Monoxide: 153.85 μg/m3
Nitrogen Dioxide: 1.45 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 8:14 AM
Sun Transit: 12:38 AM
Sunset: 5:03 PM
Daylight: 8 hrs 49 mins
Moonrise: 11:35 AM
Moon Transit: 5:10 PM
Moonset: 10:56 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.7%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
4:40 PM - 7:10 PM

Minor Periods

10:26 PM - 11:56 PM
11:05 AM - 12:35 AM

Action Rating: 3 out of 5

Winter Weather Advisory issued December 25 at 10:32AM EST until December 26 at 4:00PM EST by NWS Gaylord MI

Effective: Thu December 25, 2025, 10:32 AM
Expires: Thu December 25, 2025, 10:45 PM

* WHAT...Mixed precipitation expected. Total snow and sleet accumulations up to an inch and ice accumulations around a light glaze. * WHERE...A portion of Northern Lower Michigan. * WHEN...From 5 AM to 4 PM EST Friday. * IMPACTS...Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.

Slow down and use caution while traveling.


Winter Weather Advisory issued December 25 at 1:56PM EST until December 26 at 4:00PM EST by NWS Gaylord MI

Effective: Thu December 25, 2025, 1:56 PM
Expires: Fri December 26, 2025, 2:00 AM

* WHAT...Mixed precipitation expected. Total snow and sleet accumulations up to one inch and ice accumulations up to one tenth of an inch. * WHERE...A portion of Northern Lower Michigan. * WHEN...From 5 AM to 4 PM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday morning commute.

Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Winter Weather Advisory issued December 25 at 10:32AM EST until December 26 at 4:00PM EST by NWS Gaylord MI

Effective: Thu December 25, 2025, 10:32 AM
Expires: Thu December 25, 2025, 10:45 PM

* WHAT...Mixed precipitation and freezing rain expected. Total snow and sleet accumulations less than an inch and ice accumulations up to one tenth of an inch. * WHERE...A portion of Northern Lower Michigan. * WHEN...From 5 AM to 4 PM EST Friday. * IMPACTS...Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.

Slow down and use caution while traveling.


Winter Weather Advisory issued December 25 at 1:56PM EST until December 26 at 4:00PM EST by NWS Gaylord MI

Effective: Thu December 25, 2025, 1:56 PM
Expires: Fri December 26, 2025, 2:00 AM

* WHAT...Freezing rain and light mixed precipitation expected. Ice accumulations up to one tenth of an inch, with snow and sleet accumulations likely remaining under an inch. * WHERE...A portion of Northern Lower Michigan. * WHEN...From 5 AM to 4 PM EST Friday. * IMPACTS...Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.

Slow down and use caution while traveling.


Winter Weather Advisory issued December 25 at 10:32AM EST until December 26 at 4:00PM EST by NWS Gaylord MI

Effective: Thu December 25, 2025, 10:32 AM
Expires: Thu December 25, 2025, 10:45 PM

* WHAT...Mixed precipitation expected. Total snow and sleet accumulations up to two inches and ice accumulations around a light glaze. * WHERE...Alpena, Cheboygan, Emmet, Montmorency, and Presque Isle Counties. * WHEN...From 5 AM to 4 PM EST Friday. * IMPACTS...Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.

Slow down and use caution while traveling.


Winter Weather Advisory issued December 25 at 1:56PM EST until December 26 at 4:00PM EST by NWS Gaylord MI

Effective: Thu December 25, 2025, 1:56 PM
Expires: Fri December 26, 2025, 2:00 AM

* WHAT...Mixed precipitation expected. Total snow and sleet accumulations up to two inches and ice accumulations around a light glaze. * WHERE...A portion of Northern Lower Michigan. * WHEN...From 5 AM to 4 PM EST Friday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday morning commute.

Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Thursday, December 25, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 28.5°F
Average Humidity: 81%
Chance of Rain: 0%
Wind: 11 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 2.64 μg/m3
PM10: 2.82 μg/m3
Carbon Monoxide: 181.13 μg/m3
Nitrogen Dioxide: 3.85 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 65.68 μg/m3

Astronomical

Sunrise: 8:14 AM
Sun Transit: 12:38 AM
Sunset: 5:03 PM
Daylight: 8 hrs 49 mins
Moonrise: 11:35 AM
Moon Transit: 5:10 PM
Moonset: 10:56 PM
Moon Phase: Waxing Crescent
Moon Illumination: 29.7%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
4:40 PM - 7:10 PM

Minor Periods

10:26 PM - 11:56 PM
11:05 AM - 12:35 AM

Action Rating: 3 out of 5

Friday, December 26, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 25.9°F
Average Humidity: 83%
Chance of Rain: 75%
Wind: 13 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 1.8 μg/m3
PM10: 1.88 μg/m3
Carbon Monoxide: 163.41 μg/m3
Nitrogen Dioxide: 3.4 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 76.2 μg/m3

Astronomical

Sunrise: 8:14 AM
Sun Transit: 12:38 AM
Sunset: 5:04 PM
Daylight: 8 hrs 50 mins
Moonrise: 11:54 AM
Moon Transit: 5:54 PM
Moonset: 12:08 PM
Moon Phase: First Quarter
Moon Illumination: 40.5%

Best Times for Fishing or Hunting

Major Periods

5:47 AM - 8:17 AM
5:24 PM - 7:54 PM

Minor Periods

12:00 AM - 12:00 AM
11:24 AM - 12:54 AM

Action Rating: 4 out of 5

Saturday, December 27, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 27.2°F
Average Humidity: 91%
Chance of Rain: 0%
Wind: 8.9 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 2.83 μg/m3
PM10: 2.85 μg/m3
Carbon Monoxide: 173.65 μg/m3
Nitrogen Dioxide: 4.97 μg/m3
Sulphur Dioxide: 2.11 μg/m3
Ozone: 67.76 μg/m3

Astronomical

Sunrise: 8:14 AM
Sun Transit: 12:39 AM
Sunset: 5:04 PM
Daylight: 8 hrs 50 mins
Moonrise: 12:13 AM
Moon Transit: 4:23 AM
Moonset: 12:08 AM
Moon Phase: First Quarter
Moon Illumination: 51.8%

Best Times for Fishing or Hunting

Major Periods

3:53 AM - 6:23 AM
3:53 AM - 6:23 AM

Minor Periods

11:43 AM - 1:13 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, December 28, 2025

Weather Forecast

Conditions: Light freezing rain
Average Temperature: 30.4°F
Average Humidity: 95%
Chance of Rain: 87%
Wind: 9.4 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 4.35 μg/m3
PM10: 4.38 μg/m3
Carbon Monoxide: 237.51 μg/m3
Nitrogen Dioxide: 10.28 μg/m3
Sulphur Dioxide: 2.77 μg/m3
Ozone: 41.68 μg/m3

Astronomical

Sunrise: 8:14 AM
Sun Transit: 12:39 AM
Sunset: 5:05 PM
Daylight: 8 hrs 51 mins
Moonrise: 12:33 AM
Moon Transit: 7:27 PM
Moonset: 1:21 AM
Moon Phase: First Quarter
Moon Illumination: 63.0%

Best Times for Fishing or Hunting

Major Periods

7:19 AM - 9:49 AM
6:57 PM - 9:27 PM

Minor Periods

12:03 AM - 1:33 PM
12:51 AM - 2:21 AM

Action Rating: 2 out of 5

Monday, December 29, 2025

Weather Forecast

Conditions: Blowing snow
Average Temperature: 24.1°F
Average Humidity: 89%
Chance of Rain: 84%
Wind: 18.6 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 1.89 μg/m3
PM10: 1.89 μg/m3
Carbon Monoxide: 250.43 μg/m3
Nitrogen Dioxide: 9.39 μg/m3
Sulphur Dioxide: 1.69 μg/m3
Ozone: 36.62 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 12:40 AM
Sunset: 5:06 PM
Daylight: 8 hrs 51 mins
Moonrise: 12:57 AM
Moon Transit: 8:19 PM
Moonset: 2:39 AM
Moon Phase: First Quarter
Moon Illumination: 73.5%

Best Times for Fishing or Hunting

Major Periods

8:09 AM - 10:39 AM
7:49 PM - 10:19 PM

Minor Periods

12:27 AM - 1:57 PM
2:09 AM - 3:39 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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