Weather forecast for 10 daysUnderwood, WA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 68°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphE 80°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:27 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
Tomorrow, on Sunday, predominantly sunny weather will make for pleasant outdoor conditions.
The temperature will fluctuate from a high of a delightful 68°F to a low of a brisk 44.6°F.
It will feel warmer than usual, as the temperature reflects September's normal high of 68.9°F, not October's.
Sunrise will be at 7:27 am and sunset at 6:15 pm; tomorrow's daylight will last for 10h and 48min.

10-day overview

Daily temperatures

Warmest period: Tuesday - Wednesday 70°C.
Coldest period: Saturday - Monday 59°C.

Chance of precipitation

Highest chance: Saturday - Sunday 24%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphWNW 293°
  • Humidity: 76%
  • UV index: 0
  • Sunrise: 7:25 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 68°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphE 80°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:27 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 64°F
  • 43°F
Cloudy
Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphWNW 284°
  • Humidity: 56%
  • UV index: 2
  • Sunrise: 7:28 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphENE 77°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:29 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphENE 61°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:31 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 64°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 8mphWNW 282°
  • Humidity: 62%
  • UV index: 2
  • Sunrise: 7:32 am PDT
  • Sunset: 6:08 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 61°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 9mphW 276°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 7:34 am PDT
  • Sunset: 6:06 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 59°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.08"
  • Wind: 4mphN 2°
  • Humidity: 65%
  • UV index: 2
  • Sunrise: 7:35 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 59°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 4mphNNE 24°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 7:36 am PDT
  • Sunset: 6:03 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 59°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 3mphNW 318°
  • Humidity: 70%
  • UV index: 3
  • Sunrise: 7:38 am PDT
  • Sunset: 6:01 pm PDT
  • ▼
Weather patterns suggest that a combination of dull and clear weather is forecasted.
With a probability of 24%, rainfall is anticipated only on next Saturday. Anticipated precipitation will be minimal at 0.08".
In the upcoming period, the maximum temperature will vary between 59°F and 69.8°F, while the low temperature range extends from 37.4°F to 44.6°F.
The warmest days will be Tuesday and Wednesday, with a maximum of 69.8°F; next Saturday through next Monday, with the highest temperature of 59°F, will be the coldest days.
Updated: Oct 17, 2026 @ 23:13:51 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, mostly sunny skies are expected.

Tomorrow, the highest temperature will be 68°F, while the lowest temperature will be 44.6°F.
The highest temperature will be notably higher than the average maximum of 55.4°F in October. The lowest temperature tomorrow will be relatively higher than the average low temperature.

On Sunday, in Underwood, sunrise will be at 7:27 am and sunset at 6:15 pm (PDT).

Tomorrow, the daylight will last for 10h and 48min.