Portage Lake

Portage Lake

Onekama, MI

57°F
58°
3 mph65°/43°

Right Now

58°

Mostly Clear

Water

57°

Wind

3 mph

ESE

Gusts

8 mph

Pressure

30.27

falling

Forecast - Fri, May 22

7am
44°
10am
55°
1pm
63°
4pm
65°
7pm
63°

High / Low

65° / 43°

Wind

11 mph

gusts 25 mph

Precip

0%

UV

6

Sunrise

10:10 AM

Sunset

1:13 AM

Today Read

Portage Lake

Wind read

Moderate

11 mph avg

Water read

57°

Cool-water mix

Air range

43° / 65°

today

Precip

0%

low concern

Today's forecast for Portage Lake has moderate wind, 43F to 65F air temperatures, 0% chance of precipitation, and 57F water.

AI lake plannerGreen lightChecking questions

Ask what to do at Portage Lake today.

The planner reads this page's water temp, forecast, fish species, solunar timing, reports, and imagery context so you can decide what to throw, when to go, and when to move.

Today's AI read

Transition pattern for Largemouth bass / Smallmouth bass

74 confidence

Transition temps can split fish between warming edges and deeper comfort zones. Wind is not the main constraint, so timing and presentation can drive the plan. Check the solunar window against hourly wind and light.

Uses this lake data

Current water temp: 57°FWater temp history: 460 readingsHourly weather: 224 hoursSolunar timing: 3/5Fish species: 7 listedSatellite imagery: 471 captures

Trip read from the AI planner

Fishing Forecast

waxing crescent

3/5

Major

11:06 PM - 1:36 AM

Minor

3:51 PM - 5:21 PM

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May 17, 2025

Fish Species

7

Water Temperature History

Current

62°

May 31

Low

32°

Feb 1

Average

53°

Last 12 Months

Warmest avg: July (70°F)

Coolest avg: January (35°F)

Rapid warming: FebruaryMarch (+10°F)

Sharpest cooling: OctoberNovember (-10°F)

Weather Forecast

Wind speed, gusts, and pressure trends for trip timing.

Hourly Wind Forecast

22

12am - 11pm

Wind SpeedWind Gust
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Peak Wind

14 mph

1pm

Peak Gust

25 mph

highest gust

Pressure

30.31 inHg

rising

Visibility

30 mi

31% clouds

Tap chart for details, swipe left or right for different days.Tap chart for details • Swipe for different days

Daily Pressure Forecast

Pressure
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Nearby Lakes

FAQ

About Portage Lake

Portage Lake covers 2112.00 acres (3.30 square miles) with a maximum depth of 18.29 meters (~60 feet).

Portage Lake is located in Onekama, Manistee County, MI. It is accessible to the public for outdoor activities.