Weather forecast for tomorrowMount Vernon, OR
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 73°F
- 43°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphNNW 333°
- Humidity: 49%
- UV index: 3
- Sunrise: 7:15 am PDT
- Sunset: 6:07 pm PDT
- details ▼
Tomorrow, on Sunday, October 18, clouds and sunshine will create a dynamic sky throughout the day.
The temperature will peak at a warm 73.4°F during the day, dropping to a low of a brisk 42.8°F at night.
Temperatures are higher than average, more in line with September's norm of 71.2°F than with October's 56.3°F.
Sunrise will be at 7:15 am and sunset at 6:07 pm; tomorrow's daylight will last for 10h and 52min.
The temperature will peak at a warm 73.4°F during the day, dropping to a low of a brisk 42.8°F at night.
Temperatures are higher than average, more in line with September's norm of 71.2°F than with October's 56.3°F.
Sunrise will be at 7:15 am and sunset at 6:07 pm; tomorrow's daylight will last for 10h and 52min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 70°C.
Coldest hour: 6 am 41°C.
Coldest hour: 6 am 41°C.
Chance of precipitation
Highest chance: 3 am - 6 am 8%.
Hourly weather forecast
- 12 am
- 48°F
- Feels like:48°F
Clear
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 4mphNE 40°
- Humidity: 66%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 45°F
- Feels like:45°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphESE 116°
- Humidity: 71%
- Pressure: 30.12"Hg
- Visibility: 8mi
- UV index: 0
- details ▼
- 4 am
- 43°F
- Feels like:41°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphESE 105°
- Humidity: 76%
- Pressure: 30.12"Hg
- Visibility: 7mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:39°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphESE 106°
- Humidity: 78%
- Pressure: 30.15"Hg
- Visibility: 7mi
- UV index: 0
- details ▼
Sunrise: 7:15 am
- 8 am
- 43°F
- Feels like:43°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 2mphESE 108°
- Humidity: 81%
- Pressure: 30.15"Hg
- Visibility: 8mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:52°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphE 95°
- Humidity: 66%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 61°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphN 350°
- Humidity: 47%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 68°F
- Feels like:68°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphWNW 295°
- Humidity: 34%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 72°F
- Feels like:72°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphWNW 287°
- Humidity: 27%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphWSW 258°
- Humidity: 33%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:07 pm
- 8 pm
- 59°F
- Feels like:59°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphSE 138°
- Humidity: 41%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 54°F
- Feels like:54°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphSE 132°
- Humidity: 46%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, a combination of gloomy and clear weather is expected.
The temperature will vary between a minimum of 41°F and a maximum of 71.6°F. The warmest part of the day is anticipated around 4 pm.
The temperature will feel more resembling September's average high than the expected maximum for October. Tomorrow, expect the temperature to be also more consistent with September's average minimum of 44.2°F than October's usual 35.6°F.
The temperature will vary between a minimum of 41°F and a maximum of 71.6°F. The warmest part of the day is anticipated around 4 pm.
The temperature will feel more resembling September's average high than the expected maximum for October. Tomorrow, expect the temperature to be also more consistent with September's average minimum of 44.2°F than October's usual 35.6°F.
Updated: Oct 17, 2026 @ 23:41:55 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, a partly cloudy outlook will keep the sky interesting throughout the day.
Tomorrow, the highest temperature will be 73.4°F, while the lowest temperature will be 42.8°F.
Tomorrow, the maximum temperature will be noticeably higher than the average highest temperature of 56.3°F in October. The lowest temperature will be relatively higher than the average low of 35.6°F.
Tomorrow, the maximum temperature will be noticeably higher than the average highest temperature of 56.3°F in October. The lowest temperature will be relatively higher than the average low of 35.6°F.
On Sunday, in Mount Vernon, sunrise will be at 7:15 am and sunset at 6:07 pm (PDT).
In Mount Vernon, tomorrow, there will be 10h and 52min of daylight.
