Mount Vernon 7-day weather forecast

Written by:
September 8, 2025
ESOlex // Shutterstock

Mount Vernon 7-day weather forecast

Stacker created the forecast for Mount Vernon, Washington using data from OpenWeather. This week's high is 74 °F on Monday, while the low is 53 °F on Friday. There are expected to be 2 sunny days and precipitation on 0 days this week.

There are currently no weather alerts.

Monday, September 8

- High of 74 °F, low of 55 °F (64% humidity)
- Partly cloudy with a 0% chance of rain
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:37 AM, sunset at 7:37 PM
1 / 6
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Tuesday, September 9

- High of 68 °F, low of 55 °F (69% humidity)
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (5 mph wind)
- Sunrise at 6:38 AM, sunset at 7:34 PM
2 / 6
1981 Rustic Studio kan // Shutterstock

Wednesday, September 10

- High of 69 °F, low of 54 °F (65% humidity)
- Partly cloudy with a 0% chance of rain
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:39 AM, sunset at 7:32 PM
3 / 6
supergenijalac // Shutterstock

Thursday, September 11

- High of 70 °F, low of 54 °F (60% humidity)
- Fair with a 0% chance of rain
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:41 AM, sunset at 7:30 PM
4 / 6
afoto6267 // Shutterstock

Friday, September 12

- High of 69 °F, low of 53 °F (54% humidity)
- Sunny with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:42 AM, sunset at 7:28 PM
5 / 6
Ahmet Naim // Shutterstock

Saturday, September 13

- High of 70 °F, low of 54 °F (60% humidity)
- Partly cloudy with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:44 AM, sunset at 7:26 PM
6 / 6
Zyabich // Shutterstock

Sunday, September 14

- High of 69 °F, low of 54 °F (58% humidity)
- Mostly cloudy with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:45 AM, sunset at 7:24 PM
- Last quarter moon

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