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American Lake — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in American Lake, trends, monthly ranges and the forecast for the coming days.

Siltcoos Lake, United States
Siltcoos Lake, United States © By Visitor7, CC BY-SA 3.0

Current Water Temperature

17.7°C
Today
18.0°C
Yesterday
15.5°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in American Lake today is 17.7°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart Over the Last 30 Days

From May 10 to June 10

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 317.7°C18.5°C
JUN 417.7°C18.5°C
JUN 517.7°C18.5°C
JUN 617.7°C18.5°C
JUN 718.0°C18.5°C
JUN 817.9°C18.5°C
JUN 1118.5°C17.7°C
JUN 1218.5°C17.8°C
JUN 1318.5°C17.8°C
JUN 1418.5°C17.9°C
JUN 1518.5°C17.9°C
JUN 1618.5°C17.9°C
JUN 1718.5°C18.0°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.

Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.

Monthly Water Temperature Range (Min, Max & Average)

Month Min Avg Max
January0°C3°C7°C
February3°C6°C8°C
March5°C8°C11°C
April7°C11°C15°C
May12°C17°C21°C
June13°C19°C24°C
July17°C24°C31°C
August19°C25°C30°C
September17°C22°C26°C
October12°C16°C20°C
November6°C11°C14°C
December4°C7°C9°C

American Lake: Water Temperature by Location

American Lake: Weather Forecast

June 9

° / °
moderate rain
rain: 90% | wind:

June 10

° / °
light drizzle
rain: 90% | wind:

June 11

° / °
mainly clear
rain: 17% | wind:

June 12

° / °
partly cloudy
rain: 6% | wind:

June 13

° / °
overcast
rain: 2% | wind:

Location & Local Information

American Lake, near Lakewood in western Washington, experiences typical Pacific Northwest seasonal temperature swings. Surface water in winter commonly sits around the mid-30s to mid-40s °F (about 2–7 °C), rising through spring into the mid-40s to low 60s °F (roughly 7–16 °C). In summer, surface temperatures frequently reach the low to mid 60s up to the low 70s °F (around 16–23 °C), occasionally warming a bit higher during extended heat spells. By fall the lake cools again, with surface readings generally falling back into the 50s–60s °F range (10–16 °C). Deeper water remains significantly colder year-round, so swimmers typically feel a marked drop in temperature away from the surface.

Swimming is allowed at American Lake in designated park and beach areas and the lake is used widely for recreation in warmer months. Local authorities and park signs should be followed because water quality and safety conditions can change; periodic advisories for bacterial contamination or algal blooms, as well as boat traffic and changing weather, can affect whether swimming is recommended. Lifeguard presence and facilities vary by location and season, so checking current posted information before entering the water is advisable.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in American Lake?
Water Temperature in American Lake today is 17.7°C.
What is the water temperature in American Lake during the summer months?
The water temperature in American Lake in summer fluctuates in the range of 13°C - 31°C.
Is it possible to swim in American Lake and what are the possibilities for this?
Yes, it's possible to swim in American Lake in Washington. The lake offers swimming beaches, boat ramps for access, and is popular for water sports.