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Opossum Lake — Current Water Temperature, Annual Trends and Forecast

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

Lake of the Isles, United States
Lake of the Isles, United States © By Bjoertvedt, CC BY-SA 3.0

Current Water Temperature

23.5°C
Today
23.0°C
Yesterday
23.9°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 Opossum Lake today is 23.5°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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 30 to June 30

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 2323.9°C20.0°C
JUN 2423.9°C20.0°C
JUN 2523.7°C20.0°C
JUN 2623.7°C20.0°C
JUN 2722.6°C20.0°C
JUN 2822.7°C20.0°C
JUN 2923.0°C20.0°C
JUN 3023.5°C20.0°C
JUL 124.0°C23.5°C
JUL 224.0°C23.6°C
JUL 324.0°C23.6°C
JUL 424.0°C23.6°C
JUL 524.0°C23.6°C
JUL 624.0°C23.7°C
JUL 724.0°C23.7°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°C4°C7°C
February0°C4°C7°C
March2°C7°C11°C
April9°C13°C17°C
May13°C18°C24°C
June16°C20°C24°C
July19°C24°C29°C
August20°C23°C26°C
September20°C23°C26°C
October17°C21°C24°C
November6°C12°C17°C
December2°C6°C10°C

Opossum Lake: Water Temperature by Location

Opossum Lake: Weather Forecast

July 1

° / °
slight thunderstorm
rain: 6% | wind:

July 2

° / °
slight thunderstorm
rain: 4% | wind:

July 3

° / °
slight thunderstorm
rain: 8% | wind:

July 4

° / °
slight thunderstorm
rain: 28% | wind:

July 5

° / °
slight thunderstorm
rain: 37% | wind:

Location & Local Information

Opossum Lake in Pennsylvania typically follows the seasonal temperature patterns common to small northeastern lakes. Surface water in winter can approach freezing, roughly 32°F (0°C), with pockets of 30–34°F (−1 to 1°C) where ice forms. In early spring temperatures often sit in the mid‑30s to mid‑40s °F (1–7°C) as the lake stratifies. By late spring and early summer the surface commonly warms to about 50–70°F (10–21°C) depending on weather, and on warm, calm summer days surface readings can reach the low to upper 70s °F (21–26°C). As autumn progresses the surface cools again to the 50s and 40s °F (10–5°C). Deeper water remains colder year‑round, and conditions can vary with wind, sunlight, and recent precipitation.

Swimming at Opossum Lake is generally governed by local park rules and the presence of designated swimming areas; where an official beach is open during summer months, swimming is allowed because authorities monitor water quality and provide safety measures. In places without a designated beach, swimming may be discouraged or restricted due to submerged hazards, sudden depth changes, boat traffic, or variable water quality. In winter, ice cover makes swimming unsafe except for organized, supervised events. Visitors should check posted signs and local management information before entering the water.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Opossum Lake?
Water Temperature in Opossum Lake today is 23.5°C.
What is the water temperature in Opossum Lake during the summer months?
The water temperature in Opossum Lake in summer fluctuates in the range of 16°C - 29°C.
Is it possible to swim in Opossum Lake and what are the possibilities for this?
Yes, it is possible to swim in Opossum Lake in Pennsylvania. However, please be aware of any local regulations and conditions to ensure safety.