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Mount Vernon, OR Weather Forecast | 5 Day

Updated: Mon Sep 14th 2026 9:15 AM PDT

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Sunny

Mon 9-14-26

Sunny with a high of 64°F and a low of 40°F. There might be light rainfall having a 17% chance with an estimated 0.01in. Winds will be light at 5mph and gusts of 13mph at 7 PM. Humidity levels should be comfortable, sitting around 57% on average, the maximum being 58% at 10 AM and 23% being its lowest at 4 PM. Barometric pressure is its highest of 30.1^inHg at 10 AM, a lowest point of 29.96^inHg at 5 PM with an avg 30.02^inHg.

HI: 64°F
LO: 40°F

Rainfall: 17% | est. 0.01in
Snowfall: 0%

Wind
4.7 mph
Humidity
57% avg.

UV Index
6
Air Quality
Good

Sunrise
06:34 AM
Sunset
07:09 PM

Moonrise
10:55 AM
Moonset
08:29 PM
Moon Phase
Waxing Crescent

Partly Cloudy

Weather Tomorrow, Tue 9-15-26

Partly Cloudy with a high of 69°F and a low of 43°F. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 13mph on average and gusts of 18.8mph at 5 PM. Humidity levels should be comfortable, sitting around 44% on average, the maximum being 73% at 11 PM and 22% being its lowest at 3 PM. Barometric pressure is its highest of 30.02^inHg at 12 AM, a lowest point of 29.81^inHg at 5 PM with an avg 29.93^inHg.

HI: 69°F
LO: 43°F

Rainfall: 5%
Snowfall: 0%

Wind
12.1 mph
Humidity
44% avg.

UV Index
4.9
Air Quality
Good

Sunrise
06:35 AM
Sunset
07:07 PM

Moonrise
12:10 PM
Moonset
09:01 PM
Moon Phase
Waxing Crescent

Sunny

Wed 9-16-26

Sunny with a high of 71°F and a low of 44°F. There's a very small chance of rainfall, only about 7% with an estimated 0in. Wind will be moderate, blowing around 16mph on average and gusts of 24.6mph at 4 PM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 81% at 7 AM and 29% being its lowest at 3 PM. Barometric pressure is its highest of 30.08^inHg at 9 AM, a lowest point of 29.92^inHg at 4 PM with an avg 30.02^inHg.

HI: 71°F
LO: 44°F

Rainfall: 7% | est. 0in
Snowfall: 0%

Wind
15.2 mph
Humidity
59% avg.

UV Index
5.6
Air Quality
Good

Sunrise
06:36 AM
Sunset
07:05 PM

Moonrise
01:20 PM
Moonset
09:40 PM
Moon Phase
First Quarter

Scattered Showers

Thu 9-17-26

Scattered Showers with a high of 70°F and a low of 45°F. There might be light rainfall having a 19% chance with an estimated 0.01in. Wind will be moderate, blowing around 11mph on average and gusts of 14.6mph at 3 PM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 83% at 5 AM and 30% being its lowest at 1 PM. Barometric pressure is its highest of 30.06^inHg at 12 AM, a lowest point of 29.94^inHg at 1 PM with an avg 30.01^inHg.

HI: 70°F
LO: 45°F

Rainfall: 19% | est. 0.01in
Snowfall: 0%

Wind
10.3 mph
Humidity
59% avg.

UV Index
5
Air Quality
Good

Sunrise
06:37 AM
Sunset
07:04 PM

Moonrise
02:23 PM
Moonset
10:28 PM
Moon Phase
First Quarter

Sunny

Fri 9-18-26

Sunny with a high of 79°F and a low of 47°F. There's a very small chance of rainfall, only about 2%. Winds will be light at 5mph and gusts of 13mph at 5 PM. Humidity levels should be comfortable, sitting around 43% on average, the maximum being 78% at 7 AM and 16% being its lowest at 3 PM. Barometric pressure is its highest of 30.17^inHg at 8 AM, a lowest point of 29.97^inHg at 5 PM with an avg 30.06^inHg.

HI: 79°F
LO: 47°F

Rainfall: 2%
Snowfall: 0%

Wind
4.3 mph
Humidity
43% avg.

UV Index
7
Air Quality
Good

Sunrise
06:39 AM
Sunset
07:02 PM

Moonrise
03:17 PM
Moonset
11:24 PM
Moon Phase
First Quarter

Sunny

Sat 9-19-26

Sunny with a high of 83°F and a low of 54°F. There's a very small chance of rainfall, only about 1%. Wind will be moderate, blowing around 13mph on average and gusts of 15.4mph at 5 PM. Humidity levels should be comfortable, sitting around 30% on average, the maximum being 44% at 11 PM and 13% being its lowest at 3 PM. Barometric pressure is its highest of 30.07^inHg at 12 AM, a lowest point of 29.81^inHg at 5 PM with an avg 29.96^inHg.

HI: 83°F
LO: 54°F

Rainfall: 1%
Snowfall: 0%

Wind
12.5 mph
Humidity
30% avg.

UV Index
7
Air Quality
TBA

Sunrise
06:40 AM
Sunset
07:00 PM

Moonrise
04:00 PM
Moonset
Does not set today
Moon Phase
First Quarter

Mount Vernon, OR Weather Forecast - 10 Day Detailed

This 5-Day weather forecast is valid for ZIP code 97865, accurately covering the area of Mount Vernon, OR.

Currently

	47°F	30.12 inHg. Barometer 72% Humidity SSW 4.3 mph Wind
Sunny

Full Report

National Outlook

Rain and Storms in the West, Heat Persists in the South - 09-14 to 09-16

Mon Sep 14th 2026, 5:26am PDT

Read

Changing Weather Patterns Bring Rain and Storms: 09-16 to 09-20

Extended Forecast
Mon Sep 14th 2026, 5:30am PDT

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5 Day Forecast Nearby

Oregon

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