Weather forecast for tomorrowJohn Sam Lake, WA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 57°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 9mphNNW 332°
  • Humidity: 76%
  • UV index: 3
  • Sunrise: 7:33 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
Tomorrow, in John Sam Lake, a pleasant mix of sun and clouds will define the day.
The temperature is anticipated to vary between a mild 57.2°F and a frosty 42.8°F.
Tomorrow's high temperature will mirror the usual October 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.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 55°C.
Coldest hour: 6 am 41°C.

Chance of precipitation

Highest chance: 3 am - 9 am 9%.

Hourly weather forecast

  • 12 am
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 3mphN 355°
  • Humidity: 94%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 2mphN 349°
  • Humidity: 95%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 2mphN 349°
  • Humidity: 97%
  • Pressure: 30.21"Hg
  • Visibility: 8mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    41°F
Mostly Clear
Mostly Clear
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 2mphN 9°
  • Humidity: 98%
  • Pressure: 30.21"Hg
  • Visibility: 8mi
  • UV index: 0
  • ▼
Sunrise: 7:33 am
  • 8 am
  • 39°F
  • Feels like:
    39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 2mphNNE 14°
  • Humidity: 100%
  • Pressure: 30.18"Hg
  • Visibility: 8mi
  • UV index: 0
  • ▼
  • 10 am
  • 46°F
  • Feels like:
    46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 2mphN 1°
  • Humidity: 85%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 54°F
  • Feels like:
    52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphNW 312°
  • Humidity: 69%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 2 pm
  • 55°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 8mphNW 309°
  • Humidity: 62%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 55°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphNW 315°
  • Humidity: 63%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 52°F
  • Feels like:
    48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphNW 313°
  • Humidity: 73%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:14 pm
  • 8 pm
  • 48°F
  • Feels like:
    46°F
Cloudy
Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphNW 315°
  • Humidity: 84%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 46°F
  • Feels like:
    46°F
Cloudy
Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 4mphNNW 330°
  • Humidity: 88%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, primarily overcast and occasionally sunny weather is expected.
The temperature will be between a minimum of 39.2°F and a maximum of 55.4°F. The warmest part of the day will be from 2 pm to 4 pm.
The forecasted high will be consistent with the typical October maximum of 57°F. The nighttime low tomorrow will be also close to October's typical minimum temperature.
Updated: Oct 17, 2026 @ 23:14:17 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, a mix of clouds and blue sky is expected.

Tomorrow, the highest temperature will be 57.2°F, while the lowest temperature will be 42.8°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature 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, the length of the day tomorrow will be 10h and 41min.