Weather forecast for tomorrowIllinois City, IL
Weather forecast for tomorrow
Monday Oct 19, 2026
- 70°F
- 41°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 5mphS 169°
- Humidity: 56%
- UV index: 4
- Sunrise: 7:20 am CDT
- Sunset: 6:16 pm CDT
- details ▼
Tomorrow, on Monday, clear skies with only minor cloud interruptions are in the outlook.
Temperature changes will be considerable, from a high of an agreeable 69.8°F to a low of a cold 41°F.
A high of 69.8°F is expected, which resembles September's climate average of 75.4°F more than October's 61.5°F.
Sunrise will be at 7:20 am and sunset at 6:16 pm; tomorrow's daylight will last for 10h and 56min.
Temperature changes will be considerable, from a high of an agreeable 69.8°F to a low of a cold 41°F.
A high of 69.8°F is expected, which resembles September's climate average of 75.4°F more than October's 61.5°F.
Sunrise will be at 7:20 am and sunset at 6:16 pm; tomorrow's daylight will last for 10h and 56min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 68°C.
Coldest hour: 6 am 41°C.
Coldest hour: 6 am 41°C.
Chance of precipitation
Highest chance: 6 am 6%.
Hourly weather forecast
- 12 am
- 48°F
- Feels like:45°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphS 184°
- Humidity: 74%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 45°F
- Feels like:43°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 4mphS 185°
- Humidity: 81%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 43°F
- Feels like:41°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 3mphS 186°
- Humidity: 87%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 41°F
- Feels like:41°F
Clear
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphS 171°
- Humidity: 92%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:20 am
- 8 am
- 43°F
- Feels like:41°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 3mphS 170°
- Humidity: 90%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 54°F
- Feels like:54°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 5mphS 171°
- Humidity: 66%
- Pressure: 30.39"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 63°F
- Feels like:63°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphS 173°
- Humidity: 47%
- Pressure: 30.36"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 2 pm
- 68°F
- Feels like:68°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphS 175°
- Humidity: 40%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 68°F
- Feels like:68°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphSSE 166°
- Humidity: 37%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 63°F
- Feels like:63°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphSSE 152°
- Humidity: 46%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:16 pm
- 8 pm
- 54°F
- Feels like:54°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 1mphSE 129°
- Humidity: 69%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 50°F
- Feels like:50°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 2mphSE 126°
- Humidity: 78%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Monday, a combination of mostly clear and gloomy weather is predicted.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 68°F. The warmest part of the day will be from 2 pm to 4 pm.
The temperature will feel more comparable to September's average high than the expected maximum for October. The nighttime low will be relatively lower than the typical October minimum temperature of 45.1°F.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 68°F. The warmest part of the day will be from 2 pm to 4 pm.
The temperature will feel more comparable to September's average high than the expected maximum for October. The nighttime low will be relatively lower than the typical October minimum temperature of 45.1°F.
Updated: Oct 18, 2026 @ 10:27:59 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 Monday, sunshine will lead the day, with clouds making only brief appearances.
Tomorrow, the maximum temperature will be 69.8°F, while the minimum temperature will be 41°F.
The highest temperature will be slightly warmer than the average maximum of 61.5°F in October. The lowest temperature will be also a couple of degrees lower than the average low of 45.1°F.
The highest temperature will be slightly warmer than the average maximum of 61.5°F in October. The lowest temperature will be also a couple of degrees lower than the average low of 45.1°F.
On Monday, in Illinois City, sunrise will be at 7:20 am and sunset at 6:16 pm (CDT).
In Illinois City, the length of the day tomorrow will be 10h and 56min.
