Weather forecast for todayIlliopolis, IL

Weather forecast for today

Current condition 9:34 am CDT

  • 48°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 9mphS 180°
  • Humidity: 63%
  • Dewpoint: 36°F
  • Pressure: 30.51"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
At the moment, the horizon is crisp, and the weather remains sunny and inviting.
The temperature is a brisk 48.2°F, the feels-like temperature is slightly different, appraised at a frosty 44.6°F. The current temperature is relatively far from today's maximum-anticipated 64.4°F.

Sunday Oct 18, 2026

  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphS 180°
  • Humidity: 44%
  • UV index: 4
  • Sunrise: 7:10 am CDT
  • Sunset: 6:13 pm CDT
  • ▼
On Sunday, in Illiopolis, conditions remain stable and sunny, with little cloud presence.
Significant temperature variations are anticipated, soaring to a maximum of a comfortable 64.4°F and descending to a minimum of a wintry 37.4°F.
The temperature will be in line with October's average maximum of 63.9°F.
Sunrise was at 7:10 am and sunset will be at 6:13 pm; the daylight will last for 11h and 2min.

Hourly overview

Hourly temperatures

Warmest hour: 4 pm 64°C.
Coldest hour: 12 am 45°C.

Chance of precipitation

Highest chance: 12 am 3%.

Hourly weather forecast

  • 10 am
  • 50°F
  • Feels like:
    46°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphS 181°
  • Humidity: 59%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 11 am
  • 54°F
  • Feels like:
    50°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphS 183°
  • Humidity: 52%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 12 pm
  • 57°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphS 185°
  • Humidity: 46%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 1 pm
  • 61°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphS 186°
  • Humidity: 40%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphS 184°
  • Humidity: 36%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphS 183°
  • Humidity: 34%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphS 180°
  • Humidity: 34%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphS 175°
  • Humidity: 35%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSE 165°
  • Humidity: 42%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:13 pm
  • 7 pm
  • 54°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSE 156°
  • Humidity: 55%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 50°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSE 148°
  • Humidity: 63%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 48°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphSSE 153°
  • Humidity: 68%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 46°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphSSE 154°
  • Humidity: 73%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 46°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 6mphSSE 163°
  • Humidity: 75%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, bright skies and dry conditions are anticipated.
The temperature will be between a maximum of 64.4°F and a minimum of 46.4°F. The warmest part of the day is anticipated around 4 pm.
The highest temperature today will be comparable to October's typical maximum. The minimum temperature will be more close to November's average low of 36°F than October's typical 47.8°F.
Updated: Oct 18, 2026 @ 14:34:44 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (9:34 am CDT) it is 48.2°F in Illiopolis.

On Sunday, sunshine is forecasted under mostly clear skies.

Today, the maximum temperature will be 64.4°F, while the minimum temperature will be 37.4°F.
Today, the maximum temperature will be in line with the average highest temperature in October. Today, the lowest temperature will be notably lower than the average low of 47.8°F.

On Sunday, in Illiopolis, sunrise was at 7:10 am and sunset will be at 6:13 pm (CDT).

In Illiopolis, the length of the day today will be 11h and 2min.