Weather forecast for 10 daysChehalis, WA

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 64°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 8mphWNW 289°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 7:32 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
On Saturday, October 17, variable cloud cover will persist, but sunshine will break through.
The highest temperature will be an enjoyable 64.4°F, while the lowest predicted temperature is a wintry 39.2°F.
Today, the maximum temperature is expected to be slightly warmer than October's climate norm of 58.8°F.
Sunrise was at 7:32 am and sunset will be at 6:21 pm; the daylight will last for 10h and 49min.

Sunday Oct 18, 2026

  • 61°F
  • 43°F
AM Fog / PM Sun
AM Fog / PM Sun
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 8mphNNE 16°
  • Humidity: 73%
  • UV index: 3
  • Sunrise: 7:34 am PDT
  • Sunset: 6:19 pm PDT
  • ▼
Tomorrow, in Chehalis, low clouds and morning fog will clear gradually, bringing sunshine later in the day.
The maximum temperature will be a breezy 60.8°F, while the minimum temperature will be a frosty 42.8°F.
Tomorrow, expect the temperature to remain near October's average maximum of 58.8°F.
Sunrise will be at 7:34 am and sunset at 6:19 pm; tomorrow's daylight will last for 10h and 46min.

10-day overview

Daily temperatures

Warmest day: Wednesday 66°C.
Coldest day: Saturday 24.10. 55°C.

Chance of precipitation

Highest chance: Saturday 24.10. 45%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 64°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 8mphWNW 289°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 7:32 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 61°F
  • 43°F
AM Fog / PM Sun
AM Fog / PM Sun
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 8mphNNE 16°
  • Humidity: 73%
  • UV index: 3
  • Sunrise: 7:34 am PDT
  • Sunset: 6:19 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 61°F
  • 41°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 3mphSE 124°
  • Humidity: 74%
  • UV index: 2
  • Sunrise: 7:35 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 63°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 9mphNNE 20°
  • Humidity: 76%
  • UV index: 3
  • Sunrise: 7:37 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 66°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 3mphN 11°
  • Humidity: 74%
  • UV index: 3
  • Sunrise: 7:38 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 59°F
  • 41°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 5mphWSW 240°
  • Humidity: 83%
  • UV index: 2
  • Sunrise: 7:39 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 57°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0.12"
  • Wind: 6mphWSW 251°
  • Humidity: 79%
  • UV index: 2
  • Sunrise: 7:41 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 55°F
  • 41°F
Showers
Showers
  • Precip. probability: 45%
  • Precipitation: 0.16"
  • Wind: 5mphESE 107°
  • Humidity: 84%
  • UV index: 2
  • Sunrise: 7:42 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 57°F
  • 41°F
AM Showers
AM Showers
  • Precip. probability: 36%
  • Precipitation: 0.08"
  • Wind: 7mphE 82°
  • Humidity: 81%
  • UV index: 2
  • Sunrise: 7:44 am PDT
  • Sunset: 6:07 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 57°F
  • 41°F
AM Showers
AM Showers
  • Precip. probability: 34%
  • Precipitation: 0.16"
  • Wind: 4mphSE 139°
  • Humidity: 85%
  • UV index: 2
  • Sunrise: 7:45 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
An unsettled pattern is expected over the next ten days, and a mix of dull, wet, mostly clear and misty weather is anticipated.
Rain is anticipated on Friday through next Monday. The days with the most rainfall will be next Saturday and Monday, with light precipitation of 0.16".
In the coming days, the maximum temperature will range between 55.4°F and 66.2°F, while the lowest nighttime temperatures will be relatively consistent, as night temperatures will lie between 39.2°F and 42.8°F.
With the highest temperature of 66.2°F, Wednesday will be the warmest day; the lowest daytime temperature of the period will be reached on next Saturday, peaking at 55.4°F.
Updated: Oct 17, 2026 @ 16:21:18 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, intermittent cloud cover is expected, allowing for some sunshine.

Today, the highest temperature will be 64.4°F, while the lowest temperature will be 39.2°F.
The highest temperature will be a couple of degrees higher than the average maximum of 58.8°F in October. The lowest temperature today will be in line with the average low temperature.

On Saturday, in Chehalis, sunrise was at 7:32 am and sunset will be at 6:21 pm (PDT).

In Chehalis, the length of the day today will be 10h and 49min.

On Sunday, morning fog and overcast skies will clear, bringing afternoon warmth and sunshine.

Tomorrow, the highest temperature will be 60.8°F, while the lowest temperature will be 42.8°F.
The maximum temperature tomorrow will be in line with the average highest temperature in October. The lowest temperature tomorrow will be also in line with the average low temperature.

On Sunday, in Chehalis, sunrise will be at 7:34 am and sunset at 6:19 pm (PDT).

In Chehalis, the length of the day tomorrow will be 10h and 46min.