Weather forecast for tomorrowVandalia, IL
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 37°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 8mphSSE 162°
- Humidity: 49%
- UV index: 5
- Sunrise: 7:09 am CDT
- Sunset: 6:13 pm CDT
- details ▼
Tomorrow, in Vandalia, conditions remain stable and sunny, with little cloud presence.
A notable temperature range, reaching a high of a comfortable 66.2°F and a low of an icy 37.4°F, is predicted.
Tomorrow's highest temperature is forecasted to match the regular high for October at 65.1°F.
Sunrise will be at 7:09 am and sunset at 6:13 pm; tomorrow's daylight will last for 11h and 5min.
A notable temperature range, reaching a high of a comfortable 66.2°F and a low of an icy 37.4°F, is predicted.
Tomorrow's highest temperature is forecasted to match the regular high for October at 65.1°F.
Sunrise will be at 7:09 am and sunset at 6:13 pm; tomorrow's daylight will last for 11h and 5min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 37°C.
Coldest hour: 6 am 37°C.
Chance of precipitation
Highest chance: 6 am 4%.
Hourly weather forecast
- 12 am
- 41°F
- Feels like:41°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphSE 128°
- Humidity: 77%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:41°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphSE 143°
- Humidity: 78%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:39°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 2mphSE 140°
- Humidity: 81%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 37°F
- Feels like:37°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphSE 137°
- Humidity: 84%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:09 am
- 8 am
- 41°F
- Feels like:41°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphSSE 148°
- Humidity: 82%
- Pressure: 30.5"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 54°F
- Feels like:50°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphSSE 169°
- Humidity: 55%
- 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: 7mphS 173°
- Humidity: 41%
- Pressure: 30.47"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphS 169°
- Humidity: 34%
- Pressure: 30.42"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphSSE 165°
- Humidity: 32%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSSE 153°
- Humidity: 41%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:13 pm
- 8 pm
- 52°F
- Feels like:52°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphSE 135°
- Humidity: 63%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 48°F
- Feels like:48°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 2mphSE 138°
- Humidity: 73%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, mostly cloudless and sunny weather is anticipated.
The temperature will be between a minimum of 37.4°F and a maximum of 64.4°F. The warmest part of the day will be from 2 pm to 5 pm.
The maximum temperature tomorrow will be resembling October's average high. Tomorrow, the overnight low is more similar to November's usual minimum of 37.2°F than October's 48.6°F.
The temperature will be between a minimum of 37.4°F and a maximum of 64.4°F. The warmest part of the day will be from 2 pm to 5 pm.
The maximum temperature tomorrow will be resembling October's average high. Tomorrow, the overnight low is more similar to November's usual minimum of 37.2°F than October's 48.6°F.
Updated: Oct 18, 2026 @ 00:23:26 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
On Sunday, expect sunny weather with a crisp, clear sky.
Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 37.4°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature tomorrow will be noticeably lower than the average low of 48.6°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. The lowest temperature tomorrow will be noticeably lower than the average low of 48.6°F.
On Sunday, in Vandalia, sunrise will be at 7:09 am and sunset at 6:13 pm (CDT).
In Vandalia, tomorrow, there will be 11h and 5min of daylight.
