Updated
Grass Lake
Lake
Hot — visit early
lake in the Henry M. Jackson Wilderness, Washington, United States
Interactive map not available
Weather at Grass Lake
H: 96° L: 68°
Overcast
95°
|
Feels like 89°
Precipitation
6%
Humidity
13%
Wind
7 mph
UV Index
0.4
Water Conditions:
🏊Perfect for swimming
12 AM
75°
3 AM
72°
6 AM
69°
9 AM
79°
12 PM
90°
3 PM
96°
6 PM
95°
9 PM
86°
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.
Inflatable PaddleboardA popular way to explore calm coves and shorelines.
Compare on Amazon →Life JacketImportant around boats, paddling, and deeper swimming areas.
Compare on Amazon →Floating CoolerKeeps drinks nearby for swim areas, docks, and boats.
Compare on Amazon →Waterproof Phone PouchProtects phones around docks, boats, and splashy shorelines.
Compare on Amazon →Frequently asked questions
- Where is Grass Lake?
- Grass Lake is a lake in Washington.
- Can you swim at Grass Lake?
- There is no fixed answer for Grass Lake: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Grass Lake in Washington. Check current water conditions before you go, and follow posted signs and local guidance.
Advertisement
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
Very warm - visit early morning or evening
🏞️ 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
Washington
</> 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.