Weather forecast for 10 daysJohn Sam Lake, WA

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 59°F
  • 37°F
AM Showers
AM Showers
  • Precip. probability: 42%
  • Precipitation: 0"
  • Wind: 10mphNW 310°
  • Humidity: 67%
  • UV index: 3
  • Sunrise: 7:31 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
Today, in John Sam Lake, expect light passing rain showers before midday.
Minimal precipitation is expected. The maximum temperature will be a mild 59°F, while the minimum predicted temperature is an icy 37.4°F.
Forecasts show that today the temperature will align with October's standard maximum of 57°F.
Sunrise was at 7:31 am and sunset will be at 6:16 pm; the daylight will last for 10h and 44min.

Sunday Oct 18, 2026

  • 57°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 9mphNNW 329°
  • Humidity: 78%
  • UV index: 3
  • Sunrise: 7:33 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
Tomorrow, in John Sam Lake, a mix of clouds and blue sky is expected.
Rainfall is not anticipated. The maximum temperature will be a refreshing 57.2°F, while the minimum temperature will be a frosty 42.8°F.
Forecasts show that tomorrow the temperature will align with October's standard maximum of 57°F.
Sunrise will be at 7:33 am and sunset at 6:14 pm; tomorrow's daylight will last for 10h and 41min.

10-day overview

Daily temperatures

Maximum temperature: 59°C.
Coldest period: Friday - Monday 54°C.

Chance of precipitation

Highest chance: Friday 48%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 59°F
  • 37°F
AM Showers
AM Showers
  • Precip. probability: 42%
  • Precipitation: 0"
  • Wind: 10mphNW 310°
  • Humidity: 67%
  • UV index: 3
  • Sunrise: 7:31 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 57°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 9mphNNW 329°
  • Humidity: 78%
  • UV index: 3
  • Sunrise: 7:33 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 57°F
  • 39°F
Cloudy
Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 6mphNW 307°
  • Humidity: 79%
  • UV index: 1
  • Sunrise: 7:34 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 57°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 9mphNW 322°
  • Humidity: 77%
  • UV index: 2
  • Sunrise: 7:36 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 59°F
  • 43°F
AM Fog / PM Sun
AM Fog / PM Sun
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 6mphNW 325°
  • Humidity: 76%
  • UV index: 2
  • Sunrise: 7:37 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 55°F
  • 43°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0.08"
  • Wind: 6mphW 269°
  • Humidity: 81%
  • UV index: 2
  • Sunrise: 7:39 am PDT
  • Sunset: 6:07 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 54°F
  • 41°F
AM Showers
AM Showers
  • Precip. probability: 48%
  • Precipitation: 0.12"
  • Wind: 6mphSW 236°
  • Humidity: 79%
  • UV index: 2
  • Sunrise: 7:40 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 54°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphN 0°
  • Humidity: 78%
  • UV index: 2
  • Sunrise: 7:42 am PDT
  • Sunset: 6:03 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 54°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0.04"
  • Wind: 7mphNW 326°
  • Humidity: 72%
  • UV index: 2
  • Sunrise: 7:43 am PDT
  • Sunset: 6:02 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 54°F
  • 41°F
PM Showers
PM Showers
  • Precip. probability: 31%
  • Precipitation: 0.16"
  • Wind: 6mphSW 221°
  • Humidity: 73%
  • UV index: 2
  • Sunrise: 7:45 am PDT
  • Sunset: 6:00 pm PDT
  • ▼
For the next ten days, a combination of dull, showery and hazy weather is anticipated.
Rainfall is predicted for Thursday, Friday, next Sunday and Monday.
The maximum temperature will be almost identical throughout the coming week. Maximum temperatures will fall between 53.6°F and 59°F, while the lowest nightly temperature differences will be also negligible, as the minimum temperature will fluctuate between 37.4°F and 42.8°F.
With a maximum temperature of 59°F, Saturday and Wednesday will be the warmest days in John Sam Lake; the coldest days will be Friday through next Monday, with a maximum of 53.6°F.
Updated: Oct 17, 2026 @ 16:39:13 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, patchy morning showers will bring occasional rain.

Today, there is a low probability of minimal rainfall in John Sam Lake.

Today, the highest temperature in John Sam Lake will be 59°F, while the lowest temperature will be 37.4°F.
The highest temperature will be in line with the average maximum of 57°F in October. The lowest temperature will be relatively lower than the average low of 44.4°F.

On Saturday, in John Sam Lake, sunrise was at 7:31 am and sunset will be at 6:16 pm (PDT).

In John Sam Lake, today, there will be 10h and 44min of daylight.

On Sunday, clouds will come and go, but expect bright periods in between.

No, it will not rain tomorrow.

Tomorrow, the maximum temperature will be 57.2°F, while the minimum temperature will be 42.8°F.
The maximum temperature will be in line with the average highest temperature of 57°F in October. Tomorrow, the lowest temperature will be also in line with the average low temperature.

On Sunday, in John Sam Lake, sunrise will be at 7:33 am and sunset at 6:14 pm (PDT).

In John Sam Lake, tomorrow, there will be 10h and 41min of daylight.