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Little Payette Lake — Current Water Temperature, Annual Trends and Forecast

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

Arrowrock Reservoir, United States
Arrowrock Reservoir, United States © By Bureau of Reclamation, CC BY-SA 2.0

Current Water Temperature

24.0°C
Today
24.0°C
Yesterday
20.7°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 Little Payette Lake today is 24°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 June 20 to July 21

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUL 1420.7°C18.5°C
JUL 1522.5°C18.5°C
JUL 1622.5°C18.5°C
JUL 1722.5°C18.5°C
JUL 1823.2°C18.5°C
JUL 1923.9°C18.5°C
JUL 2024.0°C18.5°C
JUL 2124.0°C18.5°C
JUL 2218.5°C23.7°C
JUL 2318.5°C23.5°C
JUL 2418.5°C23.2°C
JUL 2518.5°C22.9°C
JUL 2618.5°C22.6°C
JUL 2718.5°C22.4°C
JUL 2818.5°C22.1°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°C2°C5°C
February1°C5°C7°C
March2°C5°C8°C
April2°C6°C9°C
May3°C9°C15°C
June8°C13°C18°C
July13°C19°C24°C
August20°C23°C25°C
September16°C19°C21°C
October9°C13°C17°C
November2°C6°C9°C
December0°C2°C5°C

Little Payette Lake: Water Temperature by Location

Little Payette Lake: Weather Forecast

July 22

° / °
overcast
rain: 34% | wind:

July 23

° / °
overcast
rain: 34% | wind:

July 24

° / °
overcast
rain: 11% | wind:

July 25

° / °
clear sky
rain: 3% | wind:

July 26

° / °
clear sky
rain: 1% | wind:

Location & Local Information

Little Payette Lake, being a higher‑elevation inland lake in Idaho, experiences a strong seasonal swing in surface water temperatures. In early spring and during snowmelt (April–June) surface readings are often cool, roughly 45–60°F (7–16°C). Peak summer afternoons, typically July into early August, can warm surface waters into the 60–70°F range (15–21°C), with occasional warm spells pushing the top layer toward the low 70s°F (~22°C). By late summer and early fall the lake cools again, commonly falling to around 50–40°F (10–4°C) as air temperatures drop and by winter the lake is near freezing at the surface, often ice‑covered and close to 32°F (0°C) beneath the ice.

Swimming is generally permitted in Little Payette Lake where public access exists, but conditions and safety vary. The water is often cold outside the brief midsummer window, so hypothermia is a real risk even on warm days; inexperienced swimmers should avoid long exposure. Local shorelines may be private or have limited access, and there are usually no lifeguards, so swimmers should choose accessible beaches or designated recreation areas, check current local advisories for water quality or restrictions, and use appropriate precautions like wearing a wetsuit or staying close to shore.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Little Payette Lake?
Water Temperature in Little Payette Lake today is 24°C.
What is the water temperature in Little Payette Lake during the summer months?
The water temperature in Little Payette Lake in summer fluctuates in the range of 8°C - 25°C.
Is it possible to swim in Little Payette Lake and what are the possibilities for this?
Yes, it is possible to swim in Little Payette Lake in Idaho. The lake's accessibility and its clear, cool waters make it a popular spot for recreational swimming and water activities.