Mount Vernon 7-day weather forecast

Written by:
August 25, 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 79 °F on Wednesday, while the low is 56 °F on Monday. There are expected to be 2 sunny days and rain on 1 day this week.

There are currently no weather alerts.

Monday, September 1

- High of 74 °F, low of 56 °F (67% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (5 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:27 AM, sunset at 7:51 PM
1 / 6
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Tuesday, September 2

- High of 76 °F, low of 56 °F (61% humidity)
- Mostly sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:28 AM, sunset at 7:49 PM
2 / 6
Ahmet Naim // Shutterstock

Wednesday, September 3

- High of 79 °F, low of 58 °F (59% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 6:30 AM, sunset at 7:47 PM
3 / 6
Alex Stemmer // Shutterstock

Thursday, September 4

- High of 76 °F, low of 59 °F (57% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (5 UV index)
- Light breeze (5 mph wind)
- Sunrise at 6:31 AM, sunset at 7:45 PM
4 / 6
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Friday, September 5

- High of 73 °F, low of 59 °F (63% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (5 mph wind)
- Sunrise at 6:32 AM, sunset at 7:43 PM
5 / 6
LeManna // Shutterstock

Saturday, September 6

- High of 69 °F, low of 56 °F (59% humidity)
- Overcast with a 29% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:34 AM, sunset at 7:41 PM
6 / 6
Robert Schlie // Shutterstock

Sunday, September 7

- High of 71 °F, low of 57 °F (59% humidity)
- Mostly sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 6:35 AM, sunset at 7:39 PM
- Full moon

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