Weather forecast for 10 daysMount Vernon, OR

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 75°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphWNW 297°
  • Humidity: 20%
  • UV index: 3
  • Sunrise: 7:14 am PDT
  • Sunset: 6:08 pm PDT
  • ▼
Today, in Mount Vernon, the sky will feature a blend of clouds and sunshine.
Temperature values will vary noticeably, extending from a temperate 75.2°F to a cold 39.2°F.
The expected high of 75.2°F appears seasonally off, better matching September's typical values.
Sunrise was at 7:14 am and sunset will be at 6:08 pm; the daylight will last for 10h and 55min.

Sunday Oct 18, 2026

  • 73°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 4mphNNW 333°
  • Humidity: 50%
  • UV index: 3
  • Sunrise: 7:15 am PDT
  • Sunset: 6:07 pm PDT
  • ▼
Tomorrow, on Sunday, clouds and sunshine will alternate throughout the day.
Substantial temperature fluctuations from a high of a warm 73.4°F to a low of a frosty 42.8°F are predicted.
It will feel warmer than usual, as the temperature reflects September's normal high of 71.2°F, not October's.
Sunrise will be at 7:15 am and sunset at 6:07 pm; tomorrow's daylight will last for 10h and 52min.

10-day overview

Daily temperatures

Warmest day: today 75°C.
Coldest day: Friday 54°C.

Chance of precipitation

Highest chance: 24%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 75°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphWNW 297°
  • Humidity: 20%
  • UV index: 3
  • Sunrise: 7:14 am PDT
  • Sunset: 6:08 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 73°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 4mphNNW 333°
  • Humidity: 50%
  • UV index: 3
  • Sunrise: 7:15 am PDT
  • Sunset: 6:07 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphWSW 248°
  • Humidity: 33%
  • UV index: 3
  • Sunrise: 7:17 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 41°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphNNW 345°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:18 am PDT
  • Sunset: 6:03 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 4mphSSE 154°
  • Humidity: 51%
  • UV index: 3
  • Sunrise: 7:19 am PDT
  • Sunset: 6:02 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 66°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphWNW 297°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:20 am PDT
  • Sunset: 6:00 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 54°F
  • 32°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 9mphWNW 301°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:22 am PDT
  • Sunset: 5:59 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 55°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 6mphSSE 158°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:23 am PDT
  • Sunset: 5:57 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 57°F
  • 36°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 6mphSE 146°
  • Humidity: 53%
  • UV index: 2
  • Sunrise: 7:24 am PDT
  • Sunset: 5:56 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 57°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 5mphSW 224°
  • Humidity: 60%
  • UV index: 3
  • Sunrise: 7:26 am PDT
  • Sunset: 5:54 pm PDT
  • ▼
Across the following ten days, primarily dull and occasionally dry and sunny weather is predicted.
Rain is not anticipated in Mount Vernon in the upcoming period.
Noticeable swings in temperature are expected in the upcoming days. The maximum temperature will vary between 53.6°F and 75.2°F, while the fluctuation in night temperatures will be also significant, as the overnight lows will vary from 32°F to 44.6°F.
Today is the warmest day, with a maximum temperature of 75.2°F; with the highest temperature of 53.6°F, Friday will be the coldest day.
Updated: Oct 17, 2026 @ 19:07:00 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, in Mount Vernon, partly cloudy skies will persist, making for a mix of sun and clouds.

Today, the maximum temperature will be 75.2°F, while the minimum temperature will be 39.2°F.
Today, the highest temperature will be significantly higher than the average maximum of 56.3°F in October. The lowest temperature today will be in line with the average low temperature.

On Saturday, in Mount Vernon, sunrise was at 7:14 am and sunset will be at 6:08 pm (PDT).

In Mount Vernon, today, there will be 10h and 55min of daylight.

Tomorrow, a partly cloudy outlook will keep the sky interesting throughout the day.

Tomorrow, the maximum temperature will be 73.4°F, while the minimum temperature will be 42.8°F.
The maximum temperature will be notably higher than the average highest temperature of 56.3°F in October. The lowest temperature tomorrow will be moderately higher than the average low temperature.

On Sunday, in Mount Vernon, sunrise will be at 7:15 am and sunset at 6:07 pm (PDT).

In Mount Vernon, the length of the day tomorrow will be 10h and 52min.