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, on Sunday, October 18, sunshine is also forecasted under mostly clear skies.
A substantial temperature range, peaking at a breezy 66.2°F and bottoming out at an icy 37.4°F, is anticipated.
The expected high temperature will align with October's average of 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 substantial temperature range, peaking at a breezy 66.2°F and bottoming out at an icy 37.4°F, is anticipated.
The expected high temperature will align with October's average of 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 129°
- 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 168°
- 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 172°
- Humidity: 40%
- 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 164°
- 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 152°
- 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, on Sunday, mainly sunny weather and a cloudless sky are anticipated.
The temperature will be between the lowest temperature of 37.4°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 resembling October's typical high. Tomorrow, expect the temperature to be more comparable to the typical minimum for November than for October.
The temperature will be between the lowest temperature of 37.4°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 resembling October's typical high. Tomorrow, expect the temperature to be more comparable to the typical minimum for November than for October.
Updated: Oct 18, 2026 @ 01:23:54 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, uninterrupted sunshine is anticipated.
Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 37.4°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature will be notably lower than the average low of 48.6°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature will be notably 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).
Tomorrow, the daylight will last for 11h and 5min.
