Weather forecast for todaySullivan, IL

Weather forecast for today

Current condition 1:18 pm CDT

  • 54°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 6mphN 10°
  • Humidity: 48%
  • Dewpoint: 36°F
  • Pressure: 30.52"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
In Sullivan, currently, the sun is shining brightly, creating a warm atmosphere.
The temperature is a cool 53.6°F. The current temperature is almost at the maximum of today's predicted 57.2°F.

Saturday Oct 17, 2026

  • 57°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphNE 52°
  • Humidity: 44%
  • UV index: 4
  • Sunrise: 7:06 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
Today, on Saturday, October 17, bright and sunny weather is expected.
The maximum temperature will be a refreshing 57.2°F, while the minimum temperature will be an icy 35.6°F.
The predicted high for today is predicted to be relatively lower than the typical October maximum of 63.9°F.
Sunrise was at 7:06 am and sunset will be at 6:12 pm; the daylight will last for 11h and 6min.

Hourly overview

Hourly temperatures

Warmest period: 3 pm - 5 pm 57°C.
Coldest period: 10 pm - 11 pm 43°C.

Chance of precipitation

Highest chance: 5 pm - 11 pm 1%.

Hourly weather forecast

  • 2 pm
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphNE 35°
  • Humidity: 45%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 57°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNNE 32°
  • Humidity: 43%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNE 41°
  • Humidity: 40%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphENE 67°
  • Humidity: 40%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 54°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphE 92°
  • Humidity: 51%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:12 pm
  • 7 pm
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphESE 123°
  • Humidity: 61%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphESE 121°
  • Humidity: 66%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSE 135°
  • Humidity: 69%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSE 127°
  • Humidity: 71%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 43°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphSE 142°
  • Humidity: 72%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
For the rest of Saturday, a cloudless sky and mainly sunshiny weather are expected.
The temperature will be between a minimum of 42.8°F and a maximum of 57.2°F. The warmest part of the day will be from 3 pm to 5 pm.
The highest temperature today will be relatively lower than October's typical maximum temperature. Today, the overnight low is more close to November's usual minimum of 36.1°F than October's 48.2°F.
Updated: Oct 17, 2026 @ 18:18:17 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

At 1:18 pm CDT, the temperature is 53.6°F.

On Saturday, sunshine is forecasted under mostly clear skies.

Today, the maximum temperature will be 57.2°F, while the minimum temperature will be 35.6°F.
The highest temperature will be a couple of degrees lower than the average maximum of 63.9°F in October. The lowest temperature today will be uncommonly lower than the average low of 48.2°F.

On Saturday, in Sullivan, sunrise was at 7:06 am and sunset will be at 6:12 pm (CDT).

In Sullivan, Illinois, today, there will be 11h and 6min of daylight.