Weather forecast for tomorrowMill Creek, WA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 59°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 8mphNNW 346°
  • Humidity: 75%
  • UV index: 3
  • Sunrise: 7:32 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
On Sunday, in Mill Creek, expect a mix of sun and clouds throughout the day.
Predicted temperature values will span from a moderate 59°F down to a chilly 44.6°F.
Tomorrow's peak temperature is forecasted to align with October's common high of 57.6°F.
Sunrise will be at 7:32 am and sunset at 6:14 pm; tomorrow's daylight will last for 10h and 42min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 57°C.
Coldest hour: 6 am 43°C.

Chance of precipitation

Highest chance: 9 am 20%.

Hourly weather forecast

  • 12 am
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphN 10°
  • Humidity: 89%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphN 6°
  • Humidity: 90%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 2mphN 11°
  • Humidity: 95%
  • Pressure: 30.21"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 6 am
  • 43°F
  • Feels like:
    43°F
Mostly Clear
Mostly Clear
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 2mphNNE 12°
  • Humidity: 95%
  • Pressure: 30.21"Hg
  • Visibility: 8mi
  • UV index: 0
  • ▼
Sunrise: 7:32 am
  • 8 am
  • 43°F
  • Feels like:
    43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 2mphN 11°
  • Humidity: 97%
  • Pressure: 30.18"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 10 am
  • 48°F
  • Feels like:
    48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 3mphN 11°
  • Humidity: 89%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 54°F
  • Feels like:
    52°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphNNW 334°
  • Humidity: 70%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 2 pm
  • 55°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphNNW 331°
  • Humidity: 61%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 55°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 8mphNNW 332°
  • Humidity: 61%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 52°F
  • Feels like:
    50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphNW 324°
  • Humidity: 71%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:14 pm
  • 8 pm
  • 50°F
  • Feels like:
    48°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphNNW 330°
  • Humidity: 81%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    48°F
Cloudy
Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 3mphNNW 345°
  • Humidity: 87%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, primarily overcast and occasionally clear weather is expected.
The temperature will be between the lowest temperature of 42.8°F and the highest temperature of 57.2°F. The warmest part of the day is expected around 3 pm.
The temperature tomorrow will be close to the average high in October. The lowest temperature is also in line with October's typical minimum of 45.9°F.
Updated: Oct 18, 2026 @ 03:10:39 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, some passing clouds may drift through, but the sun will shine at times.

Tomorrow, the highest temperature will be 59°F, while the lowest temperature will be 44.6°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature will be also in line with the average low of 45.9°F.

On Sunday, in Mill Creek, sunrise will be at 7:32 am and sunset at 6:14 pm (PDT).

In Mill Creek, the length of the day tomorrow will be 10h and 42min.