Weather forecast for tomorrowRoslyn, WA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 59°F
  • 41°F
AM Fog / PM Sun
AM Fog / PM Sun
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphE 81°
  • Humidity: 49%
  • UV index: 3
  • Sunrise: 7:27 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
Tomorrow, on Sunday, October 18, expect a foggy and damp morning, followed by a clear, sunny afternoon.
The maximum temperature will be a moderate 59°F, while the minimum forecasted temperature is a cold 41°F.
Tomorrow, the maximum temperature will be higher and more reflective of September's average high of 64.6°F than October's of 50.7°F.
Sunrise will be at 7:27 am and sunset at 6:10 pm; tomorrow's daylight will last for 10h and 44min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 57°C.
Coldest hour: 6 am 37°C.

Chance of precipitation

Highest chance: 12 am 5%.

Hourly weather forecast

  • 12 am
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphW 272°
  • Humidity: 78%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 5mphW 277°
  • Humidity: 77%
  • Pressure: 30.21"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphWNW 300°
  • Humidity: 77%
  • Pressure: 30.21"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 6 am
  • 37°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphNW 310°
  • Humidity: 77%
  • Pressure: 30.21"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
Sunrise: 7:27 am
  • 8 am
  • 36°F
  • Feels like:
    36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphNW 310°
  • Humidity: 75%
  • Pressure: 30.21"Hg
  • Visibility: 1mi
  • UV index: 0
  • ▼
  • 10 am
  • 45°F
  • Feels like:
    45°F
Foggy
Foggy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphW 270°
  • Humidity: 57%
  • Pressure: 30.18"Hg
  • Visibility: 0mi
  • UV index: 1
  • ▼
  • 12 pm
  • 52°F
  • Feels like:
    52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphE 94°
  • Humidity: 41%
  • Pressure: 30.12"Hg
  • Visibility: 9mi
  • UV index: 3
  • ▼
  • 2 pm
  • 55°F
  • Feels like:
    55°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphESE 103°
  • Humidity: 34%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 55°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphESE 105°
  • Humidity: 36%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 52°F
  • Feels like:
    50°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphE 93°
  • Humidity: 44%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:10 pm
  • 8 pm
  • 46°F
  • Feels like:
    46°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphNE 50°
  • Humidity: 58%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 45°F
  • Feels like:
    45°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphNNE 11°
  • Humidity: 59%
  • Pressure: 29.97"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Tomorrow, a combination of primarily overcast and occasionally clear and fog-covered weather is forecasted.
The temperature will vary between the lowest temperature of 35.6°F and the highest temperature of 57.2°F. The warmest part of the day is anticipated around 3 pm.
The day’s peak temperature will reflect September's norm of 64.6°F more than October's 50.7°F. Tomorrow, the forecasted low is also more alike with September's minimum of 42.3°F than the average in October.
Updated: Oct 17, 2026 @ 20:09:27 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, dense morning fog will gradually lift, making way for a sunny and warm afternoon.

Tomorrow, the maximum temperature in Roslyn will be 59°F, while the minimum temperature will be 41°F.
The highest temperature tomorrow will be slightly warmer than the average maximum temperature in October. The lowest temperature tomorrow will be also a few degrees higher than the average low temperature.

On Sunday, in Roslyn, sunrise will be at 7:27 am and sunset at 6:10 pm (PDT).

In Roslyn, tomorrow, there will be 10h and 44min of daylight.