Water Temperature of Keweenaw Bay Near Jacobsville, MI

Current Water Temperature

61.7°F

Measurement Time: Saturday, August 1, 2026, 2:40 AM EDT

Temperature Locations

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Local Points of Interest

Keweenaw Peninsula; Torch Lake Township, MI

Keweenaw Bay

Station Name: South Entry Buoy, South Keweenaw Peninsula, MI
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 587 feet

Nearest Address:
Offshore
Jacobsville, MI
Houghton County

GPS Coordinates: 46.969, -88.398

Nearby Water Temperatures

Pilgrim River, Houghton, MI (10.7 mi)
Falls River, L'Anse, MI (16.3 mi)
Sturgeon River, Pelkie, MI (20.9 mi)
Lake Superior, Calumet, MI (23 mi)
Salmon Trout River, Champion, MI (27.8 mi)
East Branch Salmon Trout River, Powell, MI (28.7 mi)
Middle Branch Escanaba River, , MI (40.5 mi)
Middle Branch Escanaba River, Humboldt, MI (41.4 mi)
Lake Superior, Marquette, MI (56.4 mi)
West Branch Ontonagon River, Bergland, MI (60.4 mi)
Lake Superior, Lake Superior, MI (70.3 mi)
Presque Isle River, Tula, MI (71.5 mi)
Washington Creek, Windigo, MI (74.5 mi)
Lake Superior, Isle Royale, MI (79.9 mi)
Popple River, Fence, WI (83.3 mi)

Weather Near Jacobsville, Michigan

Current Weather

71.1°F
Sunny
Sunny
71.6°F
76°F
76%
NNE 7.2 mph
10.2 mph
71.1°F
63°F
0 in
10%
1 mi
1014 mbar
2

Five Day Weather Forecast

Sunny
Sat
H: 80°F
L: 63°F
Sunny
Sun
H: 69°F
L: 55°F
Sunny
Mon
H: 77°F
L: 53°F
Sunny
Tue
H: 75°F
L: 61°F
Sunny
Wed
H: 66°F
L: 57°F

Air Quality

AQI: 1 - Good
PM2.5: 1.9 μg/m3
PM10: 1.9 μg/m3
Carbon Monoxide: 133 μg/m3
Nitrogen Dioxide: 0.5 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 56 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 2:00 PM
Sunset: 9:26 PM
Daylight: 14 hrs 52 mins
Moonrise: 10:42 PM
Moon Transit: 4:00 AM
Moonset: 9:46 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.9%

Best Times for Fishing or Hunting

Major Periods

3:30 AM - 6:00 AM
4:04 PM - 6:34 PM

Minor Periods

10:12 PM - 11:42 PM
9:16 AM - 10:46 AM

Action Rating: 2 out of 5

Dense Fog Advisory issued August 1 at 6:38AM EDT until August 1 at 5:00PM EDT by NWS Marquette MI

Effective: Sat August 1, 2026, 6:38 AM
Expires: Sat August 1, 2026, 5:00 PM

* WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore and Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore. * WHEN...Until 5 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult.

If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.


Dense Fog Advisory issued August 1 at 6:38AM EDT until August 1 at 11:00AM EDT by NWS Marquette MI

Effective: Sat August 1, 2026, 6:38 AM
Expires: Sat August 1, 2026, 11:00 AM

* WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Ontonagon to Upper Entrance of Portage Canal MI, Upper Entrance of Portage Canal to Eagle River MI, Eagle River to Manitou Island MI and Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border. * WHEN...Until 11 AM EDT this morning. * IMPACTS...Low visibility will make navigation difficult.

If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.
Saturday, August 1, 2026

Weather Forecast

Sunny
79.7°F
63.3°F
70.8°F
77%
0 in
9%
0%
10.1 mph
6.2


Air Quality

AQI: 1 - Good
PM2.5: 5.58 μg/m3
PM10: 5.75 μg/m3
Carbon Monoxide: 130.58 μg/m3
Nitrogen Dioxide: 0.9 μg/m3
Sulphur Dioxide: 0.32 μg/m3
Ozone: 62.63 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 2:00 PM
Sunset: 9:26 PM
Daylight: 14 hrs 52 mins
Moonrise: 10:42 PM
Moon Transit: 4:00 AM
Moonset: 9:46 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.9%

Best Times for Fishing or Hunting

Major Periods

3:30 AM - 6:00 AM
4:04 PM - 6:34 PM

Minor Periods

10:12 PM - 11:42 PM
9:16 AM - 10:46 AM

Action Rating: 2 out of 5

Sunday, August 2, 2026

Weather Forecast

Sunny
68.9°F
55.3°F
61.9°F
69%
0 in
6%
0%
8.5 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 2.11 μg/m3
PM10: 2.41 μg/m3
Carbon Monoxide: 109.17 μg/m3
Nitrogen Dioxide: 0.77 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 60.13 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 2:00 PM
Sunset: 9:24 PM
Daylight: 14 hrs 49 mins
Moonrise: 10:58 PM
Moon Transit: 4:42 AM
Moonset: 10:57 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.9%

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
6:20 PM - 8:50 PM

Minor Periods

10:28 PM - 11:58 PM
10:27 AM - 11:57 AM

Action Rating: 3 out of 5

Monday, August 3, 2026

Weather Forecast

Sunny
76.9°F
53.4°F
63.9°F
57%
0 in
3%
0%
9.8 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 2.21 μg/m3
PM10: 2.33 μg/m3
Carbon Monoxide: 124.25 μg/m3
Nitrogen Dioxide: 1.51 μg/m3
Sulphur Dioxide: 0.34 μg/m3
Ozone: 65.5 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 2:00 PM
Sunset: 9:23 PM
Daylight: 14 hrs 47 mins
Moonrise: 11:15 PM
Moon Transit: 12:00 AM
Moonset: 12:10 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
5:31 PM - 8:01 PM

Minor Periods

12:00 AM - 12:00 AM
11:40 AM - 1:10 PM

Action Rating: 2 out of 5

Tuesday, August 4, 2026

Weather Forecast

Sunny
74.6°F
60.7°F
67.5°F
73%
0 in
17%
0%
13.2 mph
6.3


Air Quality

AQI: 1 - Good
PM2.5: 3.43 μg/m3
PM10: 3.54 μg/m3
Carbon Monoxide: 129.45 μg/m3
Nitrogen Dioxide: 0.97 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 76.54 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 2:00 PM
Sunset: 9:21 PM
Daylight: 14 hrs 44 mins
Moonrise: 12:15 AM
Moon Transit: 6:11 AM
Moonset: 1:25 PM
Moon Phase: Last Quarter
Moon Illumination: 54.6%

Best Times for Fishing or Hunting

Major Periods

5:41 AM - 8:11 AM
6:19 PM - 8:49 PM

Minor Periods

12:55 AM - 2:25 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, August 5, 2026

Weather Forecast

Sunny
66.1°F
56.9°F
62.1°F
64%
0 in
6%
0%
6.7 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 2.98 μg/m3
PM10: 3.11 μg/m3
Carbon Monoxide: 195.67 μg/m3
Nitrogen Dioxide: 1.07 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 74.44 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 2:00 PM
Sunset: 9:20 PM
Daylight: 14 hrs 41 mins
Moonrise: 12:35 AM
Moon Transit: 7:00 AM
Moonset: 2:44 PM
Moon Phase: Last Quarter
Moon Illumination: 43.2%

Best Times for Fishing or Hunting

Major Periods

6:30 AM - 9:00 AM
7:10 PM - 9:40 PM

Minor Periods

2:14 PM - 3:44 PM
12:00 AM - 12:00 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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