Weather forecast for 10 daysIssaquah, WA

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 61°F
  • 41°F
Cloudy
Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 5mphN 11°
  • Humidity: 71%
  • UV index: 2
  • Sunrise: 7:30 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
Today, expect persistent cloudiness.
A temperature range of an enjoyable 60.8°F to a wintry 41°F is anticipated.
The highest temperature for today is predicted to reflect October's average of 58.6°F.
Sunrise was at 7:30 am and sunset will be at 6:16 pm; the daylight will last for 10h and 46min.

Sunday Oct 18, 2026

  • 59°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 6mphN 4°
  • Humidity: 74%
  • UV index: 3
  • Sunrise: 7:31 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
On Sunday, in Issaquah, sun and clouds will share the sky, creating a partly cloudy day.
The highest temperature will be a moderate 59°F, while the lowest anticipated temperature is a frosty 44.6°F.
Tomorrow, expect the temperature to remain near October's average maximum of 58.6°F.
Sunrise will be at 7:31 am and sunset at 6:14 pm; tomorrow's daylight will last for 10h and 43min.

10-day overview

Daily temperatures

Warmest day: Wednesday 64°C.
Coldest period: Thursday - Monday 55°C.

Chance of precipitation

Highest chance: Thursday - Saturday 24%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 61°F
  • 41°F
Cloudy
Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 5mphN 11°
  • Humidity: 71%
  • UV index: 2
  • Sunrise: 7:30 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 59°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 6mphN 4°
  • Humidity: 74%
  • UV index: 3
  • Sunrise: 7:31 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 61°F
  • 43°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 4mphW 261°
  • Humidity: 70%
  • UV index: 2
  • Sunrise: 7:33 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 63°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 6mphN 357°
  • Humidity: 76%
  • UV index: 3
  • Sunrise: 7:34 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 64°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 3mphNNW 337°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:36 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 55°F
  • 45°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.12"
  • Wind: 4mphSW 233°
  • Humidity: 82%
  • UV index: 2
  • Sunrise: 7:37 am PDT
  • Sunset: 6:07 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 55°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.04"
  • Wind: 4mphWSW 249°
  • Humidity: 78%
  • UV index: 2
  • Sunrise: 7:39 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 55°F
  • 45°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 4mphNNE 13°
  • Humidity: 79%
  • UV index: 2
  • Sunrise: 7:40 am PDT
  • Sunset: 6:03 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 55°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 5mphN 355°
  • Humidity: 76%
  • UV index: 2
  • Sunrise: 7:42 am PDT
  • Sunset: 6:02 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 55°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 4mphNNW 329°
  • Humidity: 77%
  • UV index: 2
  • Sunrise: 7:43 am PDT
  • Sunset: 6:00 pm PDT
  • ▼
Throughout the next ten days, primarily gloomy and occasionally dry and sunny weather is predicted.
Rainfall is expected on Thursday and Friday.
In the upcoming period, the maximum temperature will vary between 55.4°F and 64.4°F, while the overnight low will be nearly unchanged, as night temperatures will lie between 41°F and 44.6°F.
Expect the warmest day on Wednesday, with temperatures peaking at 64.4°F; with a maximum temperature of 55.4°F, Thursday through next Monday will be the coldest days.
Updated: Oct 17, 2026 @ 20:09:31 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, extensive cloud cover will block out the sun.

Today, the highest temperature will be 60.8°F, while the lowest temperature will be 41°F.
Today, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature today will be also in line with the average low temperature.

On Saturday, in Issaquah, sunrise was at 7:30 am and sunset will be at 6:16 pm (PDT).

In Issaquah, today, there will be 10h and 46min of daylight.

Tomorrow, in Issaquah, scattered clouds may briefly filter the sunlight, but it will remain bright overall.

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

On Sunday, in Issaquah, sunrise will be at 7:31 am and sunset at 6:14 pm (PDT).

Tomorrow, the daylight will last for 10h and 43min.