Weather forecast for tomorrowMount Vernon, IA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 39°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 15mphSSW 193°
- Humidity: 55%
- UV index: 4
- Sunrise: 7:21 am CDT
- Sunset: 6:19 pm CDT
- details ▼
On Sunday, October 18, the weather remains calm, bright, and sunny.
A substantial temperature range, peaking at an enjoyable 66.2°F and bottoming out at a cold 39.2°F, is predicted.
Tomorrow's highest temperature will be a few degrees higher than the average October maximum 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.
A substantial temperature range, peaking at an enjoyable 66.2°F and bottoming out at a cold 39.2°F, is predicted.
Tomorrow's highest temperature will be a few degrees higher than the average October maximum 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.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 39°C.
Coldest hour: 6 am 39°C.
Chance of precipitation
Highest chance: 6 am 4%.
Hourly weather forecast
- 12 am
- 43°F
- Feels like:39°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphS 190°
- Humidity: 71%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:36°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphS 191°
- Humidity: 75%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:36°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphSSW 193°
- Humidity: 79%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 39°F
- Feels like:34°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 7mphSSW 191°
- Humidity: 81%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:21 am
- 8 am
- 41°F
- Feels like:36°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphS 187°
- Humidity: 81%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 50°F
- Feels like:45°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphSSW 192°
- Humidity: 64%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 59°F
- Feels like:55°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphSSW 197°
- Humidity: 48%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 64°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 15mphSSW 197°
- Humidity: 42%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 14mphS 190°
- Humidity: 39%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:61°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphS 183°
- Humidity: 46%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:19 pm
- 8 pm
- 54°F
- Feels like:52°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphS 179°
- Humidity: 66%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:46°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphS 181°
- Humidity: 74%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, a cloudless sky and mainly sunshiny weather are expected.
The temperature will vary between the lowest temperature of 39.2°F and the highest temperature of 64.4°F. The warmest part of the day will be from 2 pm to 5 pm.
Tomorrow, the maximum will be moderately higher than the average high for October. The minimum temperature will be also a couple of degrees lower than October's average low of 43.9°F.
The temperature will vary between the lowest temperature of 39.2°F and the highest temperature of 64.4°F. The warmest part of the day will be from 2 pm to 5 pm.
Tomorrow, the maximum will be moderately higher than the average high for October. The minimum temperature will be also a couple of degrees lower than October's average low of 43.9°F.
Updated: Oct 18, 2026 @ 01:48:51 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, skies will stay clear and sunny.
Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 39.2°F.
The highest temperature will be relatively higher than the average maximum of 59.9°F in October. Tomorrow, the lowest temperature will be also relatively lower than the average low temperature.
The highest temperature will be relatively higher than the average maximum of 59.9°F in October. Tomorrow, the lowest temperature will be also relatively lower than the average low temperature.
On Sunday, in Mount Vernon, sunrise will be at 7:21 am and sunset at 6:19 pm (CDT).
In Mount Vernon, Iowa, the length of the day tomorrow will be 10h and 58min.
