Weather forecast for 10 daysMount Vernon, IA

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 10mphSSW 205°
  • Humidity: 40%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:21 pm CDT
  • ▼
Today, in Mount Vernon, sunshine is forecasted under mostly clear skies.
A temperature range of a refreshing 57.2°F to a cold 39.2°F is anticipated.
Forecasts show that today the temperature will align with October's standard maximum of 59.9°F.
Sunrise was at 7:20 am and sunset will be at 6:21 pm; the daylight will last for 11h and 1min.

Sunday Oct 18, 2026

  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 15mphSSW 194°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 6:19 pm CDT
  • ▼
On Sunday, in Mount Vernon, sunny skies are in store, with excellent visibility.
Temperature measurements will peak at a breezy 66.2°F, with a considerable drop to a low of a cold 39.2°F.
Tomorrow's maximum temperature is anticipated to be slightly warmer than the common October peak of 59.9°F.
Sunrise will be at 7:21 am and sunset at 6:19 pm; tomorrow's daylight will last for 10h and 58min.

10-day overview

Daily temperatures

Warmest period: Thursday - Saturday 75°C.
Coldest day: today 57°C.

Chance of precipitation

Highest chance: 6%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 57°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 10mphSSW 205°
  • Humidity: 40%
  • UV index: 4
  • Sunrise: 7:20 am CDT
  • Sunset: 6:21 pm CDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 15mphSSW 194°
  • Humidity: 55%
  • UV index: 4
  • Sunrise: 7:21 am CDT
  • Sunset: 6:19 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphS 170°
  • Humidity: 58%
  • UV index: 4
  • Sunrise: 7:22 am CDT
  • Sunset: 6:18 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphSE 141°
  • Humidity: 62%
  • UV index: 4
  • Sunrise: 7:24 am CDT
  • Sunset: 6:16 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphS 175°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:25 am CDT
  • Sunset: 6:15 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphSE 144°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:26 am CDT
  • Sunset: 6:13 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 75°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 9mphSE 139°
  • Humidity: 57%
  • UV index: 4
  • Sunrise: 7:27 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 75°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 11mphSSE 154°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:28 am CDT
  • Sunset: 6:10 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 72°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphSSW 213°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:30 am CDT
  • Sunset: 6:09 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 72°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphE 92°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 7:31 am CDT
  • Sunset: 6:07 pm CDT
  • ▼
Looking ahead to the next ten days, a combination of mostly clear and cloudy weather is expected.
Rain is not anticipated in Mount Vernon in the upcoming days.
Temperature fluctuation will be noticeable throughout the forecast window. Maximum temperatures are forecasted between 57.2°F and 75.2°F, while the lowest night temperatures will vary also significantly, as the overnight lows will vary from 39.2°F to 51.8°F.
The warmest days will be Thursday through next Saturday, with a maximum of 75.2°F; today is the coldest day, with a maximum temperature of 57.2°F.
Updated: Oct 17, 2026 @ 18:37:59 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, sunshine will likely continue with scattered clouds at most.

Today, the highest temperature will be 57.2°F, while the lowest temperature will be 39.2°F.
The maximum temperature today will be in line with the average highest temperature in October. Today, the lowest temperature will be relatively lower than the average low temperature.

On Saturday, in Mount Vernon, sunrise was at 7:20 am and sunset will be at 6:21 pm (CDT).

Today in Mount Vernon, the daylight will last for 11h and 1min.

On Sunday, sunny skies are in store, with excellent visibility.

Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 39.2°F.
Tomorrow, the highest temperature will be slightly warmer than the average maximum temperature in October. The lowest temperature will be also relatively lower than the average low of 43.9°F.

On Sunday, in Mount Vernon, sunrise will be at 7:21 am and sunset at 6:19 pm (CDT).

In Mount Vernon, the length of the day tomorrow will be 10h and 58min.