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As of 16:09 PDT

Weather in Mount Vernon, OR

99°Current weather

Mount Vernon, Saturday, 8 August, 16:09

Partly cloudy. Feels like 94°. High 99°, low 58°.

Pressure29.88 inHg
Wind15 mph NW
Humidity9%
Visibility6.2 mi
Dew point32°
Sun, 0992° / 54°0Clear
92 °Clear

Mount Vernon, Sunday, 9 August

Clear. High 92°, low 54°.

Pressure29.91 inHg
Wind5.2 mph W
Humidity12%
Visibility6.2 mi
Dew point25°
Mon, 1092° / 53°0Clear
92 °Clear

Mount Vernon, Monday, 10 August

Clear. High 92°, low 53°.

Pressure29.91 inHg
Wind5.4 mph NW
Humidity14%
Visibility6.2 mi
Dew point29°
Tue, 1194° / 59°0Clear
94 °Clear

Mount Vernon, Tuesday, 11 August

Clear. High 94°, low 59°.

Pressure29.94 inHg
Wind5.8 mph W
Humidity14%
Visibility6.2 mi
Dew point31°
Wed, 1289° / 59°0Clear
89 °Clear

Mount Vernon, Wednesday, 12 August

Clear. High 89°, low 59°.

Pressure29.88 inHg
Wind6 mph NW
Humidity21%
Visibility6.2 mi
Dew point38°
Thu, 1389° / 58°0Overcast
89 °Overcast

Mount Vernon, Thursday, 13 August

Overcast. High 89°, low 58°.

Pressure29.80 inHg
Wind12.7 mph NW
Humidity17%
Visibility—
Dew point36°
Fri, 1492° / 58°0Overcast
92 °Overcast

Mount Vernon, Friday, 14 August

Overcast. High 92°, low 58°.

Pressure29.83 inHg
Wind6.3 mph W
Humidity14%
Visibility—
Dew point33°
Sat, 1588° / 67°0Light rain
88 °Light rain

Mount Vernon, Saturday, 15 August

Light rain. High 88°, low 67°.

Pressure29.91 inHg
Wind11.4 mph W
Humidity21%
Visibility—
Dew point41°
Sun, 1693° / 61°0Clear
93 °Clear

Mount Vernon, Sunday, 16 August

Clear. High 93°, low 61°.

Pressure29.91 inHg
Wind14 mph SW
Humidity15%
Visibility—
Dew point36°
Mon, 1795° / 61°0Overcast
95 °Overcast

Mount Vernon, Monday, 17 August

Overcast. High 95°, low 61°.

Pressure29.91 inHg
Wind13.8 mph SW
Humidity12%
Visibility—
Dew point32°
Tue, 1891° / 64°0Partly cloudy
91 °Partly cloudy

Mount Vernon, Tuesday, 18 August

Partly cloudy. High 91°, low 64°.

Pressure29.97 inHg
Wind8.7 mph E
Humidity23%
Visibility—
Dew point44°
Wed, 1991° / 61°0Overcast
91 °Overcast

Mount Vernon, Wednesday, 19 August

Overcast. High 91°, low 61°.

Pressure29.88 inHg
Wind11.6 mph SW
Humidity19%
Visibility—
Dew point41°
Thu, 2095° / 60°0Clear
95 °Clear

Mount Vernon, Thursday, 20 August

Clear. High 95°, low 60°.

Pressure29.94 inHg
Wind10.1 mph NW
Humidity22%
Visibility—
Dew point40°
Fri, 2195° / 61°0Clear
95 °Clear

Mount Vernon, Friday, 21 August

Clear. High 95°, low 61°.

Pressure29.97 inHg
Wind12.5 mph NW
Humidity26%
Visibility—
Dew point44°
Sat, 22101° / 62°0Clear
101 °Clear

Mount Vernon, Saturday, 22 August

Clear. High 101°, low 62°.

Pressure29.94 inHg
Wind9.9 mph NW
Humidity21%
Visibility—
Dew point43°
Sun, 2399° / 69°0.05Light rain
99 °Light rain

Mount Vernon, Sunday, 23 August

Light rain. High 99°, low 69°.

Pressure29.91 inHg
Wind6.8 mph E
Humidity31%
Visibility—
Dew point51°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Mount Vernon, OR are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Mount Vernon, OR since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.