Weather forecast for todayMount Vernon, IL
Weather forecast for today
Current condition 2:56 am CDT
- 37°F
- Feels like:37°F
Fog
- Precipitation: 0"
- Wind: 0mphWNW 290°
- Humidity: 94%
- Dewpoint: 36°F
- Pressure: 30.49"Hg
- Visibility: 1mi
- UV index: 0
- details ▼
In Mount Vernon, at the moment, humid conditions have led to the formation of dense fog across the area.
The temperature is a wintry 37.4°F. The current temperature is almost at the minimum-predicted 35.6°F for today.
The temperature is a wintry 37.4°F. The current temperature is almost at the minimum-predicted 35.6°F for today.
Sunday Oct 18, 2026
- 66°F
- 36°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 7mphSE 144°
- Humidity: 51%
- UV index: 5
- Sunrise: 7:07 am CDT
- Sunset: 6:13 pm CDT
- details ▼
On Sunday, in Mount Vernon, bright and sunny weather is expected.
The day's temperature scale will range from a significant high of a breezy 66.2°F to a minimum of a cold 35.6°F.
The expected peak temperature will reflect the average October high of 66.4°F.
Sunrise will be at 7:07 am and sunset at 6:13 pm; the daylight will last for 11h and 6min.
The day's temperature scale will range from a significant high of a breezy 66.2°F to a minimum of a cold 35.6°F.
The expected peak temperature will reflect the average October high of 66.4°F.
Sunrise will be at 7:07 am and sunset at 6:13 pm; the daylight will last for 11h and 6min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 36°C.
Coldest hour: 6 am 36°C.
Chance of precipitation
Highest chance: 3 am 15%.
Hourly weather forecast
- 4 am
- 36°F
- Feels like:36°F
Mostly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 0mphS 180°
- Humidity: 95%
- Pressure: 30.47"Hg
- Visibility: 8mi
- UV index: 0
- details ▼
- 6 am
- 36°F
- Feels like:36°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 1mphESE 121°
- Humidity: 91%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:07 am
- 8 am
- 39°F
- Feels like:39°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 1mphSE 133°
- Humidity: 90%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 54°F
- Feels like:52°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphSE 146°
- Humidity: 57%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 61°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphSSE 149°
- Humidity: 42%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 5
- details ▼
- 2 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphSSE 148°
- Humidity: 35%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphSE 146°
- Humidity: 33%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSE 138°
- Humidity: 43%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:13 pm
- 8 pm
- 50°F
- Feels like:50°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphESE 114°
- Humidity: 69%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 46°F
- Feels like:46°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 1mphESE 116°
- Humidity: 81%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Today, primarily mostly clear and occasionally cloudy weather is anticipated.
The temperature will be between the highest temperature of 66.2°F and the lowest temperature of 35.6°F. The warmest part of the day will be at 3 pm and 4 pm.
The temperature today will be alike with the average high in October. Forecast models suggest a low more close to November's typical minimum of 37.9°F than October's usual 49.1°F.
The temperature will be between the highest temperature of 66.2°F and the lowest temperature of 35.6°F. The warmest part of the day will be at 3 pm and 4 pm.
The temperature today will be alike with the average high in October. Forecast models suggest a low more close to November's typical minimum of 37.9°F than October's usual 49.1°F.
Updated: Oct 18, 2026 @ 07:56:59 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Currently (2:56 am CDT) it is 37.4°F in Mount Vernon.
Today, sunny skies and pleasant visibility are expected.
Today, the highest temperature will be 66.2°F, while the lowest temperature will be 35.6°F.
Today, the maximum temperature will be in line with the average highest temperature in October. Today, the lowest temperature will be significantly lower than the average low of 49.1°F.
Today, the maximum temperature will be in line with the average highest temperature in October. Today, the lowest temperature will be significantly lower than the average low of 49.1°F.
On Sunday, in Mount Vernon, sunrise will be at 7:07 am and sunset at 6:13 pm (CDT).
In Mount Vernon, today, there will be 11h and 6min of daylight.
Mount Vernon, Illinois, USA
- en: Mount Vernon, Illinois, USA
- es: Mount Vernon, Illinois, EE.UU.
- hr: Maunt Vernon, Ilinois, SAD
- mk: Maunt Vernon, Ilinois, SAD
- sr: Maunt Vernon, Ilinois, SAD
- zh: 芒特弗农, 伊利诺伊, 美国
- Latitude: 38.317271°
- Longitude: -88.903120°
- Elevation: 512 ft
- Current time: 2:56am CDT
- Sunrise: 7:07 am CDT
- Sunset: 6:13 pm CDT
- Timezone: America/Chicago
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