Weather forecast for todaySullivan, IL

Weather forecast for today

Current condition 11:02 am CDT

  • 50°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 7mphENE 60°
  • Humidity: 57%
  • Dewpoint: 36°F
  • Pressure: 30.55"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
In Sullivan, at the moment, the weather is cheerful and full of sunlight.
The temperature is a cool 50°F, with the feels-like temperature closely matching at 48.2°F. The current temperature is a few degrees off the maximum of 59°F for the day.

Saturday Oct 17, 2026

  • 59°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphNE 42°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:06 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
Today, on Saturday, October 17, conditions remain stable and sunny, with little cloud presence.
The temperature is anticipated to vary between a maximum of a moderate 59°F and a minimum of a cold 35.6°F.
The daily maximum temperature is expected to be a few degrees lower than October's climate average 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 hour: 4 pm 57°C.
Coldest hour: 2 am 39°C.

Chance of precipitation

Highest chance: 12 am - 2 am 2%.

Hourly weather forecast

  • 12 pm
  • 52°F
  • Feels like:
    50°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphNE 34°
  • Humidity: 52%
  • Pressure: 30.53"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 1 pm
  • 55°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphNNE 33°
  • Humidity: 47%
  • Pressure: 30.5"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 2 pm
  • 55°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphNE 35°
  • Humidity: 44%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 57°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNNE 26°
  • 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: 3mphNNE 33°
  • Humidity: 41%
  • 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 60°
  • Humidity: 41%
  • 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: 2mphE 92°
  • Humidity: 52%
  • 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: 62%
  • 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: 2mphSE 127°
  • Humidity: 67%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSE 140°
  • Humidity: 70%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSE 133°
  • Humidity: 72%
  • 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 145°
  • Humidity: 74%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Sullivan, mainly sunny weather and a cloudless sky are anticipated.
The temperature will be between a maximum of 57.2°F and a minimum of 42.8°F. The warmest part of the day will be from 3 pm to 5 pm.
The high will be moderately lower than the normal maximum of 63.9°F for October. Forecast models suggest a low more similar to November's typical minimum of 36.1°F than October's usual 48.2°F.
Updated: Oct 17, 2026 @ 16:02:52 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (11:02 am CDT) is 50°F.

Today, in Sullivan, expect consistent sunshine and open skies.

Today, the maximum temperature will be 59°F, while the minimum temperature will be 35.6°F.
Today, the maximum temperature will be moderately lower than the average highest temperature in October. The lowest temperature will be notably 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, today, there will be 11h and 6min of daylight.