
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 Tuesday, while the low is 50 °F on Saturday. There are expected to be 3 sunny days and rain on 1 day this week.
NWS Seattle WA has issued a fire weather watch until Wednesday at 11:00 PM.
Monday, September 15
- High of 69 °F, low of 54 °F (59% humidity)- Fair with a 0% chance of rain
- Moderate risk of harm from sun exposure (4 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:46 AM, sunset at 7:22 PM
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1 / 6
IKO-studio // Shutterstock
Tuesday, September 16
- High of 79 °F, low of 54 °F (47% 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 6:48 AM, sunset at 7:20 PM
- 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 6:48 AM, sunset at 7:20 PM

2 / 6
cooperr // Shutterstock
Wednesday, September 17
- High of 72 °F, low of 54 °F (47% humidity)
- Sunny with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:49 AM, sunset at 7:18 PM
- Sunny with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:49 AM, sunset at 7:18 PM

3 / 6
New Africa // Shutterstock
Thursday, September 18
- High of 68 °F, low of 53 °F (63% humidity)
- Mostly sunny with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:50 AM, sunset at 7:15 PM
- Mostly sunny with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:50 AM, sunset at 7:15 PM

4 / 6
STILLFX // Shutterstock
Friday, September 19
- High of 69 °F, low of 54 °F (58% humidity)
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (4 mph wind)
- Sunrise at 6:52 AM, sunset at 7:13 PM
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (4 mph wind)
- Sunrise at 6:52 AM, sunset at 7:13 PM

5 / 6
alisalipa // Shutterstock
Saturday, September 20
- High of 68 °F, low of 50 °F (49% humidity)
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:53 AM, sunset at 7:11 PM
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:53 AM, sunset at 7:11 PM
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6 / 6
John Cartwright // Shutterstock
Sunday, September 21
- High of 62 °F, low of 57 °F (86% humidity)
- Overcast with a 100% chance of rain (8 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 6:55 AM, sunset at 7:09 PM
- New moon
- Overcast with a 100% chance of rain (8 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 6:55 AM, sunset at 7:09 PM
- New moon