Weather forecast for tomorrowMount Vernon, VA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 63°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphNNE 24°
  • Humidity: 43%
  • UV index: 5
  • Sunrise: 7:20 am EDT
  • Sunset: 6:26 pm EDT
  • ▼
Tomorrow, on Sunday, October 18, skies are expected to be clear and full of sunshine.
The temperature will fluctuate from a high of a comfortable 62.6°F to a low of an icy 41°F.
Tomorrow's maximum temperature is anticipated to be moderately lower than the usual 67.1°F high in October.
Sunrise will be at 7:20 am and sunset at 6:26 pm; tomorrow's daylight will last for 11h and 5min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 61°C.
Coldest hour: 6 am 41°C.

Chance of precipitation

Highest chance: 6 am 2%.

Hourly weather forecast

  • 12 am
  • 46°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphN 357°
  • Humidity: 57%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphN 3°
  • Humidity: 62%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphN 358°
  • Humidity: 63%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphN 3°
  • Humidity: 65%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:20 am
  • 8 am
  • 41°F
  • Feels like:
    37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphN 4°
  • Humidity: 66%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 50°F
  • Feels like:
    46°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphNNE 23°
  • Humidity: 50%
  • Pressure: 30.56"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 55°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphNNE 32°
  • Humidity: 35%
  • Pressure: 30.56"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphNNE 30°
  • Humidity: 30%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphNNE 28°
  • Humidity: 30%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNE 38°
  • Humidity: 43%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:26 pm
  • 8 pm
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNNE 25°
  • Humidity: 59%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphNE 41°
  • Humidity: 69%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, mostly cloudless and sunny weather is anticipated.
The temperature will be between a minimum of 39.2°F and a maximum of 60.8°F. The warmest part of the day will be at 3 pm and 4 pm.
The maximum temperature will be a few degrees lower than October's average high of 67.1°F. The lowest temperature tomorrow is more in line with November's average minimum of 39.9°F than the average low in October of 51.3°F.
Updated: Oct 18, 2026 @ 02:41:39 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Mount Vernon, skies will stay clear and sunny.

Tomorrow, the maximum temperature will be 62.6°F, while the minimum temperature will be 41°F.
Tomorrow, the maximum temperature will be relatively lower than the average highest temperature in October. The lowest temperature will be significantly lower than the average low of 51.3°F.

On Sunday, in Mount Vernon, sunrise will be at 7:20 am and sunset at 6:26 pm (EDT).

In Mount Vernon, tomorrow, there will be 11h and 5min of daylight.