Skip to content
Satellite view of Grass Lake

Grass Lake

Lake

Cool water — ease in carefully

Use caution

Cool water — ease in carefully: water temperature is 69°F, cool enough to cause cold-water shock on a sudden entry.

  • Water temperature is 69°F, cool enough to cause cold-water shock on a sudden entry.
  • Heavy rain today can raise bacteria levels near outfalls and river mouths.

lake in Luce County, Michigan, United States of America

Interactive map not available

Cool water — ease in carefully

Use caution

Cool water — ease in carefully: water temperature is 69°F, cool enough to cause cold-water shock on a sudden entry.

  • Water temperature is 69°F, cool enough to cause cold-water shock on a sudden entry. NOAA buoy PNLM4, as of Aug 22, 3:00 AM UTC
  • Heavy rain today can raise bacteria levels near outfalls and river mouths.
Water temp
69°F
21°C

No official beach-advisory feed for Michigan yet — follow posted signs and local guidance.

Live data from NOAA buoy PNLM4 (34.6 mi away), as of Aug 22, 3:00 AM UTC.

Weather at Grass Lake

H: 66° L: 58°
Patchy light rain
Patchy light rain
61°
|
Feels like 62°
Precipitation
81%
Humidity
89%
Wind
4 mph
UV Index
0
Water Conditions:
🥶Too cold for most swimmers🌧️Rain expected
12 AM
Light rain
63°
3 AM
Light rain
59°
6 AM
Light rain
59°
9 AM
Mist
59°
12 PM
Overcast
66°
3 PM
Cloudy
66°
6 PM
Sunny
63°
9 PM
Clear
58°

Sponsored gear checklist

Pack smarter for Grass Lake

Useful gear categories for this kind of water spot. These links open Amazon search results so you can compare current options.

As an Amazon Associate we earn from qualifying purchases.

Frequently asked questions

Where is Grass Lake?
Grass Lake is a lake in Michigan.
What is the water temperature at Grass Lake?
As of August 22, 2026, the water temperature at Grass Lake in Michigan is 69°F (21°C), measured by NOAA buoy PNLM4, 34.6 miles away.
Can you swim at Grass Lake?
Cool water — ease in carefully: water temperature is 69°F, cool enough to cause cold-water shock on a sudden entry. Checked August 22, 2026.

Visitor Reviews

Be the first to share your experience here

Join our community to share your water adventures

Earn badges as you share your experiences!

💧 Droplet💦 Stream🌊 Wave💧 Current🌀 Tide🌊 Ocean

No reviews yet — share what you know

Been here? A quick note helps the next visitor plan their day. Handy things to mention:

Water temperatureCrowds & parkingBest time to goSafety & access

Best Times to Visit

🌧️
Right Now
Not ideal for outdoor activities today
🏞️ Lakes Tips:
  • Check for boat launch facilities and fees
  • Obtain required fishing licenses before arrival
  • Be aware of lake-specific regulations and restrictions
  • Monitor water quality reports before swimming
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Michigan

</> Embed this location on your site

Paste this snippet into your website to show a live badge for Grass Lake — free to use with the included credit link.