Weather forecast for todayCarterville, IL

Weather forecast for today

Current condition 12:30 am CDT

  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precipitation: 0"
  • Wind: 0mphW 270°
  • Humidity: 92%
  • Dewpoint: 45°F
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Currently, in Carterville, a deep blue sky remains clear and cloudless.
The temperature is a chilly 46.4°F. The current temperature is almost at the minimum-anticipated 42.8°F for today.

Tuesday Oct 20, 2026

  • 75°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0.04"
  • Wind: 5mphENE 60°
  • Humidity: 53%
  • UV index: 5
  • Sunrise: 7:09 am CDT
  • Sunset: 6:12 pm CDT
  • ▼
Today, in Carterville, conditions will remain bright with clear skies.
Minimal precipitation is expected. Temperature readings will considerable fluctuate from a daytime peak of a moderately hot 75.2°F to a nighttime low of a frosty 42.8°F.
Temperatures are trending warmer, with a peak resembling September's average maximum rather than October's seasonal high.
Sunrise will be at 7:09 am and sunset at 6:12 pm; the daylight will last for 11h and 2min.

Hourly overview

Hourly temperatures

Warmest hour: 4 pm 73°C.
Coldest hour: 7 am 43°C.

Chance of precipitation

Highest chance: 1 am 44%.

Hourly weather forecast

  • 2 am
  • 46°F
  • Feels like:
    46°F
Mostly Clear
Mostly Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 1mphE 92°
  • Humidity: 93%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 46°F
  • Feels like:
    46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 0mphN 0°
  • Humidity: 93%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 45°F
  • Feels like:
    45°F
Mostly Clear
Mostly Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 1mphNE 47°
  • Humidity: 95%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:09 am
  • 8 am
  • 46°F
  • Feels like:
    46°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 1mphENE 62°
  • Humidity: 92%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphENE 68°
  • Humidity: 62%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphENE 68°
  • Humidity: 39%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 2 pm
  • 72°F
  • Feels like:
    72°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphENE 69°
  • Humidity: 34%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 4 pm
  • 73°F
  • Feels like:
    73°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNE 53°
  • Humidity: 35%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphNE 53°
  • Humidity: 44%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:12 pm
  • 8 pm
  • 57°F
  • Feels like:
    57°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphNE 54°
  • Humidity: 66%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 54°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 1mphENE 67°
  • Humidity: 77%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Carterville, a combination of mostly clear, cloudy and rain-filled weather is forecasted.
With a probability of 44%, minimal rainfall is forecasted at 1 am.
The temperature will be between the highest temperature of 73.4°F and the lowest temperature of 42.8°F. The warmest part of the day will be at 3 pm and 4 pm.
The maximum temperature will align more closely with September's average high of 80.8°F than with October's 67.3°F. The expected low will be more similar to what’s common in November than the current October average of 49.3°F.
Updated: Oct 20, 2026 @ 05:30:21 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 12:30 am CDT is 46.4°F.

Today, in Carterville, the outlook remains bright and sunny.

Today, there is a low probability of minimal rainfall in Carterville.

Today, the maximum temperature will be 75.2°F, while the minimum temperature will be 42.8°F.
The highest temperature will be slightly warmer than the average maximum of 67.3°F in October. The lowest temperature will be also a couple of degrees lower than the average low of 49.3°F.

On Tuesday, in Carterville, sunrise will be at 7:09 am and sunset at 6:12 pm (CDT).

Today, the daylight will last for 11h and 2min.