Live Weather & Forecast
Weather in Centralia
Illinois, United States · Real-time conditions & 3-day outlook
18°C
Feels like 18°C
64°F / Feels 64°F
Clear
Centralia, Illinois
🌙 Nighttime
Updated: 2026-04-12 06:00
Humidity
75%
Wind
16.2 km/h S
Wind Gust
34 km/h
Pressure
1020 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
12.6°C
Wind Degree
179°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
167.9 μg/m³
NO₂
3.9 μg/m³
O₃
88 μg/m³
SO₂
2.2 μg/m³
PM 2.5
6.1 μg/m³
PM 10
6.6 μg/m³
Weather Alerts 1
Met
· Moderate · Expected
Special Weather Statement issued April 12 at 12:21AM CDT by NWS Paducah KY
Elevated conditions for wildfires are expected this afternoon, mainly between 12 PM and 7 PM CDT. Relative humidity values will fall to 25 to 35% this afternoon, and winds will be breezy from the south, sustained at 10 to 15 mph with gusts of 25 to 30 mph forecast. Vegetation is dry due to ongoing moderate to severe drought conditions over much of the region. Outdoor burning and activities that i...
Today's Hourly Forecast
24-hour breakdown for Centralia, Illinois
12 AM
18°
Clear
1 AM
17°
Clear
2 AM
17°
Clear
3 AM
17°
Clear
4 AM
17°
Clear
5 AM
16°
Clear
6 AM
18°
Clear
7 AM
17°
Sunny
8 AM
19°
Sunny
9 AM
21°
Sunny
10 AM
24°
Sunny
11 AM
26°
Sunny
12 PM
28°
Sunny
1 PM
28°
Sunny
2 PM
29°
Sunny
3 PM
28°
Sunny
4 PM
27°
Sunny
5 PM
26°
Partly Cloudy
6 PM
24°
Overcast
7 PM
23°
Overcast
8 PM
22°
Overcast
9 PM
21°
Overcast
10 PM
21°
Overcast
11 PM
20°
Partly Cloudy
3-Day Forecast
Daily overview for Centralia, Illinois
Today
Sunny
29°
/
16°
🌧️ 0% chance of rain
💧 Avg. humidity: 62%
💨 Max wind: 33.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.7
🌅 Sunrise: 06:24 AM
🌇 Sunset: 07:31 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Partly Cloudy
26°
/
18°
🌧️ 0% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 32.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:23 AM
🌇 Sunset: 07:32 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Partly Cloudy
25°
/
20°
🌧️ 0% chance of rain
💧 Avg. humidity: 79%
💨 Max wind: 34.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.9
🌅 Sunrise: 06:22 AM
🌇 Sunset: 07:33 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Centralia
Plan your trip to Centralia, 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 Centralia?
Current conditions in Centralia: Clear, temperature 18°C, humidity 75%.
What is the best time to visit Centralia?
The best time to visit Centralia is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Centralia?
Centralia is located at approximately 38.5° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Centralia?
The wettest period in Centralia is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Centralia?
For visits to Centralia during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Centralia in?
Centralia is located in United States, in the state of Illinois.
What are the public holidays in Centralia in 2026?
View the 2026 public holidays for Centralia on our Holidays page.
What are the GPS coordinates used for the weather forecast in Centralia?
The weather forecast for Centralia uses coordinates 38.525, -89.1334.