Weather forecast for 10 daysForest Grove, OR

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 66°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 7mphN 2°
  • Humidity: 67%
  • UV index: 3
  • Sunrise: 7:31 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
Today, on Saturday, October 17, moderate cloud cover will mix with sunshine throughout the day.
Temperatures are forecasted to peak at a comfortable 66.2°F and drop to a minimum of a cold 41°F.
Today, meteorological data suggests the high will feel more like September, based on a forecast of 66.2°F.
Sunrise was at 7:31 am and sunset will be at 6:23 pm; the daylight will last for 10h and 52min.

Sunday Oct 18, 2026

  • 66°F
  • 43°F
AM Fog / PM Sun
AM Fog / PM Sun
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 6mphN 355°
  • Humidity: 58%
  • UV index: 3
  • Sunrise: 7:33 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
Tomorrow, in Forest Grove, low clouds and morning fog will clear gradually, bringing sunshine later in the day.
Temperatures are predicted to range from a maximum of a comfortable 66.2°F to a minimum of a frosty 42.8°F.
Tomorrow, it will be warmer, and the temperature will align more with September's typical maximum of 71.6°F.
Sunrise will be at 7:33 am and sunset at 6:21 pm; tomorrow's daylight will last for 10h and 49min.

10-day overview

Daily temperatures

Warmest day: Wednesday 72°C.
Coldest day: Saturday 24.10. 57°C.

Chance of precipitation

Highest chance: Saturday 24.10. 50%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 66°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 7mphN 2°
  • Humidity: 67%
  • UV index: 3
  • Sunrise: 7:31 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 43°F
AM Fog / PM Sun
AM Fog / PM Sun
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 6mphN 355°
  • Humidity: 58%
  • UV index: 3
  • Sunrise: 7:33 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 63°F
  • 41°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 3mphSSE 153°
  • Humidity: 68%
  • UV index: 2
  • Sunrise: 7:34 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphN 1°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:35 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 72°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 4mphNNE 15°
  • Humidity: 56%
  • UV index: 3
  • Sunrise: 7:37 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 63°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 6mphWNW 294°
  • Humidity: 71%
  • UV index: 2
  • Sunrise: 7:38 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 61°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0.04"
  • Wind: 5mphW 267°
  • Humidity: 70%
  • UV index: 3
  • Sunrise: 7:40 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 57°F
  • 39°F
Showers
Showers
  • Precip. probability: 50%
  • Precipitation: 0.28"
  • Wind: 6mphSSE 155°
  • Humidity: 77%
  • UV index: 2
  • Sunrise: 7:41 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 59°F
  • 41°F
AM Showers
AM Showers
  • Precip. probability: 42%
  • Precipitation: 0.08"
  • Wind: 6mphSE 135°
  • Humidity: 72%
  • UV index: 2
  • Sunrise: 7:42 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 59°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.08"
  • Wind: 4mphS 188°
  • Humidity: 72%
  • UV index: 2
  • Sunrise: 7:44 am PDT
  • Sunset: 6:08 pm PDT
  • ▼
The next ten days will bring unstable conditions, and a mix of cloud-filled, sunny, showery and fog-covered weather is predicted.
Rain is expected on Friday through next Monday.
Temperature variation will be noticeable in the upcoming period. The maximum temperature will vary between 57.2°F and 71.6°F, while changes in the overnight low will be barely noticeable, as the overnight low will fall between 37.4°F and 42.8°F.
Expect the warmest day on Wednesday, with temperatures peaking at 71.6°F; with the highest temperature of 57.2°F, next Saturday will be the coldest day.
Updated: Oct 17, 2026 @ 16:04:43 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Forest Grove, occasional clouds will pass by, but expect bright spells.

Today, the highest temperature will be 66.2°F, while the lowest temperature will be 41°F.
The maximum temperature today will be a few degrees higher than the average highest temperature in October. Today, the lowest temperature will be in line with the average low temperature.

On Saturday, in Forest Grove, sunrise was at 7:31 am and sunset will be at 6:23 pm (PDT).

In Forest Grove, the length of the day today will be 10h and 52min.

Tomorrow, fog and low clouds will dominate the morning, but expect clear, sunny skies in the afternoon.

Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 42.8°F.
The maximum temperature will be relatively higher than the average highest temperature of 59.5°F in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Forest Grove, sunrise will be at 7:33 am and sunset at 6:21 pm (PDT).

Tomorrow, the daylight will last for 10h and 49min.