Live Weather & Forecast
Weather in Carterville
Illinois, United States · Real-time conditions & 3-day outlook
22°C
Feels like 22°C
71°F / Feels 71°F
Partly cloudy
Carterville, Illinois
🌙 Nighttime
Updated: 2026-04-13 04:15
Humidity
66%
Wind
24.8 km/h SSW
Wind Gust
43.3 km/h
Pressure
1018 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
75%
Dew Point
16.3°C
Wind Degree
208°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
140.9 μg/m³
NO₂
3 μg/m³
O₃
74 μg/m³
SO₂
1.9 μg/m³
PM 2.5
4.8 μg/m³
PM 10
5.1 μg/m³
Today's Hourly Forecast
24-hour breakdown for Carterville, Illinois
12 AM
22°
Clear
1 AM
21°
Clear
2 AM
21°
Clear
3 AM
21°
Clear
4 AM
22°
Partly cloudy
5 AM
20°
Clear
6 AM
20°
Clear
7 AM
20°
Sunny
8 AM
22°
Sunny
9 AM
22°
Partly Cloudy
10 AM
23°
Overcast
11 AM
24°
Overcast
12 PM
25°
Overcast
1 PM
26°
Partly Cloudy
2 PM
26°
Sunny
3 PM
27°
Sunny
4 PM
27°
Partly Cloudy
5 PM
27°
Sunny
6 PM
26°
Thundery outbreaks in nearby
7 PM
25°
Thundery outbreaks in nearby
8 PM
25°
Thundery outbreaks in nearby
9 PM
24°
Clear
10 PM
23°
Overcast
11 PM
23°
Clear
3-Day Forecast
Daily overview for Carterville, Illinois
Today
Partly Cloudy
28°
/
19°
🌧️ 0% chance of rain
💧 Avg. humidity: 70%
💨 Max wind: 30.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:23 AM
🌇 Sunset: 07:30 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Partly Cloudy
29°
/
20°
🌧️ 0% chance of rain
💧 Avg. humidity: 71%
💨 Max wind: 32.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.1
🌅 Sunrise: 06:22 AM
🌇 Sunset: 07:31 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Overcast
24°
/
19°
🌧️ 0% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 29.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:21 AM
🌇 Sunset: 07:32 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Carterville
Plan your trip to Carterville, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Carterville?
Current conditions in Carterville: Partly cloudy, temperature 22°C, humidity 66%.
What is the best time to visit Carterville?
The best time to visit Carterville is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Carterville?
Carterville is located at approximately 37.8° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Carterville?
The wettest period in Carterville is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Carterville?
For visits to Carterville during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Carterville in?
Carterville is located in United States, in the state of Illinois.
What are the public holidays in Carterville in 2026?
View the 2026 public holidays for Carterville on our Holidays page.
What are the GPS coordinates used for the weather forecast in Carterville?
The weather forecast for Carterville uses coordinates 37.7619, -89.0773.