Water Temperature of Keweenaw Bay Near Jacobsville, MI

Current Water Temperature

54.3°F

Measurement Time: Wednesday, October 8, 2025, 7:20 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

39°F
Sunny
Sunny
37.1°F
56°F
86%
NNE 3.1 mph
5.2 mph
53.8°F
49.1°F
0 in
0%
6 mi
1010 mbar
2.5

Five Day Weather Forecast

Partly Cloudy
Thu
H: 63°F
L: 34°F
Moderate rain
Fri
H: 70°F
L: 41°F
Moderate or heavy snow showers
Sat
H: 32°F
L: 26°F
Cloudy
Sun
H: 33°F
L: 24°F
Sunny
Mon
H: 49°F
L: 29°F

Air Quality

AQI: 1 - Good
PM2.5: 7.53 μg/m3
PM10: 9.93 μg/m3
Carbon Monoxide: 192.83 μg/m3
Nitrogen Dioxide: 6.03 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 1:53 PM
Sunset: 8:44 PM
Daylight: 13 hrs 40 mins
Moonrise: 6:24 AM
Moon Transit: 1:08 PM
Moonset: 8:11 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:38 AM - 3:08 PM

Minor Periods

7:41 PM - 9:11 PM
5:54 AM - 7:24 AM

Action Rating: 5 out of 5

Flood Warning issued April 15 at 11:03PM EDT by NWS Marquette MI

Effective: Wed April 15, 2026, 11:03 PM
Expires: Thu April 16, 2026, 3:15 PM

...The Flood Warning is extended for the following rivers in Michigan... Sturgeon River near Alston affecting Baraga and Houghton Counties. East Branch Escanaba River at Gwinn affecting Marquette County. ...The Flood Warning continues for the following rivers in Michigan... Sturgeon River near Chassell affecting Baraga and Houghton Counties. Paint River at Crystal Falls (Paint) affecting Iron County. Sturgeon River near Nahma Junction affecting Delta County. * WHAT...Minor flooding is occurring. * WHERE...Sturgeon River near Chassell. * WHEN...Until further notice. * IMPACTS...At 10.5 feet, The river begins to overflow onto Sturgeon River Road...Rajala Road...and Aho Road * ADDITIONAL DETAILS... - At 7:35 AM EDT Wednesday the stage was 10.9 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:35 AM EDT Wednesday was 10.9 feet. - Forecast...No forecast is available for this location. - Flood stage is 10.5 feet. - Flood History...This crest compares to a previous crest of 11.2 feet on 04/18/2023. - www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/marquette. The next statement will be issued Thursday afternoon at 315 PM EDT /215 PM CDT/.


Flood Warning issued April 15 at 11:03PM EDT until April 22 at 2:00PM EDT by NWS Marquette MI

Effective: Wed April 15, 2026, 11:03 PM
Expires: Thu April 16, 2026, 3:15 PM

...The Flood Warning is extended for the following rivers in Michigan... Sturgeon River near Alston affecting Baraga and Houghton Counties. East Branch Escanaba River at Gwinn affecting Marquette County. ...The Flood Warning continues for the following rivers in Michigan... Sturgeon River near Chassell affecting Baraga and Houghton Counties. Paint River at Crystal Falls (Paint) affecting Iron County. Sturgeon River near Nahma Junction affecting Delta County. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Sturgeon River near Alston. * WHEN...Until Wednesday, April 22. * IMPACTS...At 11.0 feet, Additional homes and structures near the river are impacted and evacuations may be necessary. Water levels may reach the bottom of Froberg bridge in addition to other bridges that cross the river * ADDITIONAL DETAILS... - At 10:30 PM EDT Wednesday the stage was 8.5 feet. - Bankfull stage is 7.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:30 PM EDT Wednesday was 8.5 feet. - Forecast...The river is expected to rise to a crest of 11.4 feet Saturday evening. It will then fall below flood stage early Tuesday afternoon. - Flood stage is 8.0 feet. - Flood History...This crest compares to a previous crest of 11.4 feet on 04/21/1985. - www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/marquette. The next statement will be issued Thursday afternoon at 315 PM EDT /215 PM CDT/.


Flood Watch issued April 16 at 3:09AM EDT until April 17 at 2:00AM EDT by NWS Marquette MI

Effective: Thu April 16, 2026, 3:09 AM
Expires: Thu April 16, 2026, 7:15 PM

* WHAT...Flooding caused by snowmelt continues to be possible. * WHERE...Portions of central Upper and western Upper Michigan, including the following areas, in central Upper Michigan, Alger, Baraga, Delta, Dickinson, Iron, Luce, Marquette, Menominee, Northern Schoolcraft and Southern Schoolcraft. In western Upper Michigan, Keweenaw, Northern Houghton and Southern Houghton. * WHEN...Through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.


Flood Warning issued April 16 at 1:04PM EDT by NWS Marquette MI

Effective: Thu April 16, 2026, 1:04 PM
Expires: Fri April 17, 2026, 9:15 AM

...The Flood Warning continues for the following rivers in Michigan... Sturgeon River near Chassell affecting Houghton and Baraga Counties. Sturgeon River near Alston affecting Houghton and Baraga Counties. East Branch Escanaba River at Gwinn affecting Marquette County. Paint River at Crystal Falls (Paint) affecting Iron County. Sturgeon River near Nahma Junction affecting Delta County. .Heavy rain will fall on a deep primed snowpack leading to the melt increasing. Flows in rivers will increase quickly and reach critical levels. * WHAT...Minor flooding is occurring. * WHERE...Sturgeon River near Chassell. * WHEN...Until further notice. * IMPACTS...At 10.5 feet, The river begins to overflow onto Sturgeon River Road...Rajala Road...and Aho Road * ADDITIONAL DETAILS... - At 7:35 AM EDT Wednesday, April 15 the stage was 10.9 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:35 AM EDT Wednesday was -9999.0 feet. - Forecast...No forecast is available for this location. - Flood stage is 10.5 feet. - Flood History...This crest compares to a previous crest of 11.2 feet on 04/18/2023. - www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/marquette. The next statement will be issued Friday morning at 915 AM EDT /815 AM CDT/.


Flood Warning issued April 16 at 1:04PM EDT until April 22 at 2:00PM EDT by NWS Marquette MI

Effective: Thu April 16, 2026, 1:04 PM
Expires: Fri April 17, 2026, 9:15 AM

...The Flood Warning continues for the following rivers in Michigan... Sturgeon River near Chassell affecting Houghton and Baraga Counties. Sturgeon River near Alston affecting Houghton and Baraga Counties. East Branch Escanaba River at Gwinn affecting Marquette County. Paint River at Crystal Falls (Paint) affecting Iron County. Sturgeon River near Nahma Junction affecting Delta County. .Heavy rain will fall on a deep primed snowpack leading to the melt increasing. Flows in rivers will increase quickly and reach critical levels. * WHAT...Minor flooding is occurring and moderate flooding is forecast. This approaches the flood of record. * WHERE...Sturgeon River near Alston. * WHEN...Until early Wednesday afternoon. * IMPACTS...At 11.0 feet, Additional homes and structures near the river are impacted and evacuations may be necessary. Water levels may reach the bottom of Froberg bridge in addition to other bridges that cross the river * ADDITIONAL DETAILS... - At 12:30 PM EDT Thursday the stage was 8.8 feet. - Bankfull stage is 7.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 12:30 PM EDT Thursday was 8.9 feet. - Forecast...The river is expected to rise to a crest of 12.0 feet Saturday evening. - Flood stage is 8.0 feet. - Flood History...This crest compares to a previous crest of 11.9 feet on 04/18/2002. - www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov/marquette. The next statement will be issued Friday morning at 915 AM EDT /815 AM CDT/.


Thursday, April 16, 2026

Weather Forecast

Partly Cloudy
63°F
33.8°F
44.6°F
84%
0 in
0%
0%
8.7 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 5.74 μg/m3
PM10: 8.25 μg/m3
Carbon Monoxide: 179.15 μg/m3
Nitrogen Dioxide: 4.5 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 83.84 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 1:53 PM
Sunset: 8:44 PM
Daylight: 13 hrs 40 mins
Moonrise: 6:24 AM
Moon Transit: 1:08 PM
Moonset: 8:11 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:38 AM - 3:08 PM

Minor Periods

7:41 PM - 9:11 PM
5:54 AM - 7:24 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Moderate rain
70°F
41°F
56.7°F
77%
0.56 in
78%
0%
20.6 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 7.27 μg/m3
PM10: 9.15 μg/m3
Carbon Monoxide: 162.75 μg/m3
Nitrogen Dioxide: 3.01 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 97.4 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 1:53 PM
Sunset: 8:45 PM
Daylight: 13 hrs 43 mins
Moonrise: 6:44 AM
Moon Transit: 2:00 PM
Moonset: 9:36 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

1:17 AM - 3:47 AM
1:30 PM - 4:00 PM

Minor Periods

9:06 PM - 10:36 PM
6:14 AM - 7:44 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Moderate or heavy snow showers
31.6°F
25.9°F
32.6°F
72%
1.91 in
89%
3%
23.9 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 2.62 μg/m3
PM10: 2.97 μg/m3
Carbon Monoxide: 156.19 μg/m3
Nitrogen Dioxide: 1.81 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 90.2 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:52 PM
Sunset: 8:47 PM
Daylight: 13 hrs 47 mins
Moonrise: 7:09 AM
Moon Transit: 2:57 PM
Moonset: 11:03 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

2:11 AM - 4:41 AM
2:27 PM - 4:57 PM

Minor Periods

12:00 AM - 12:00 AM
6:39 AM - 8:09 AM

Action Rating: 4 out of 5

Sunday, April 19, 2026

Weather Forecast

Cloudy
33.4°F
23.9°F
28.7°F
53%
0 in
0%
0%
19.2 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 2.14 μg/m3
PM10: 2.59 μg/m3
Carbon Monoxide: 154.87 μg/m3
Nitrogen Dioxide: 1.08 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 95.92 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 1:52 PM
Sunset: 8:48 PM
Daylight: 13 hrs 50 mins
Moonrise: 7:42 AM
Moon Transit: 3:58 PM
Moonset: 12:03 AM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

3:10 AM - 5:40 AM
3:28 PM - 5:58 PM

Minor Periods

7:12 AM - 8:42 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, April 20, 2026

Weather Forecast

Sunny
48.9°F
28.8°F
38.3°F
52%
0 in
0%
0%
17.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.76 μg/m3
PM10: 3.42 μg/m3
Carbon Monoxide: 165.91 μg/m3
Nitrogen Dioxide: 1.73 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 95.69 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 1:52 PM
Sunset: 8:50 PM
Daylight: 13 hrs 53 mins
Moonrise: 8:27 AM
Moon Transit: 5:02 PM
Moonset: 12:29 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%

Best Times for Fishing or Hunting

Major Periods

4:13 AM - 6:43 AM
4:32 PM - 7:02 PM

Minor Periods

7:57 AM - 9:27 AM
12:00 AM - 12:00 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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