Weather forecast for tomorrowIndex, WA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 61°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphN 352°
  • Humidity: 67%
  • UV index: 3
  • Sunrise: 7:30 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
Tomorrow, on Sunday, October 18, expect plenty of sunshine and only a few scattered clouds.
The highest temperature will be a breezy 60.8°F, while the lowest temperature will be a chilly 46.4°F.
Tomorrow, the expected high will be higher and much closer to September's average high of 66.4°F than October's 54.5°F.
Sunrise will be at 7:30 am and sunset at 6:12 pm; tomorrow's daylight will last for 10h and 42min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 59°C.
Coldest hour: 6 am 41°C.

Chance of precipitation

Highest chance: 12 am 8%.

Hourly weather forecast

  • 12 am
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 2mphENE 71°
  • Humidity: 96%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 2mphE 88°
  • Humidity: 93%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 2mphE 81°
  • Humidity: 92%
  • Pressure: 30.21"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 3mphENE 77°
  • Humidity: 90%
  • Pressure: 30.21"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
Sunrise: 7:30 am
  • 8 am
  • 41°F
  • Feels like:
    41°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphENE 78°
  • Humidity: 87%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 48°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphE 87°
  • Humidity: 71%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 55°F
  • Feels like:
    55°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphNNW 330°
  • Humidity: 57%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 2 pm
  • 59°F
  • Feels like:
    59°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphWNW 298°
  • Humidity: 51%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 59°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 4mphWNW 301°
  • Humidity: 60%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 54°F
  • Feels like:
    54°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphNW 315°
  • Humidity: 73%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:12 pm
  • 8 pm
  • 50°F
  • Feels like:
    50°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphNE 53°
  • Humidity: 76%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 50°F
  • Feels like:
    48°F
Cloudy
Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphE 80°
  • Humidity: 67%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of cloud-filled and clear weather is forecasted.
The temperature will vary between a minimum of 41°F and a maximum of 59°F. The warmest part of the day will be from 2 pm to 4 pm.
Tomorrow, the temperature will be closer to September's norm than to October's average of 54.5°F. Tomorrow, expect the temperature to be also more comparable to September's average minimum of 45°F than October's usual 40.1°F.
Updated: Oct 17, 2026 @ 21:26:08 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, sunshine will lead the day, with clouds making only brief appearances.

Tomorrow, the maximum temperature will be 60.8°F, while the minimum temperature will be 46.4°F.
The maximum temperature tomorrow will be a couple of degrees higher than the average highest temperature in October. The lowest temperature tomorrow will be also a few degrees higher than the average low temperature.

On Sunday, in Index, sunrise will be at 7:30 am and sunset at 6:12 pm (PDT).

In Index, tomorrow, there will be 10h and 42min of daylight.