Live Weather & Forecast
Weather in Belleville
Illinois, United States · Real-time conditions & 3-day outlook
10°C
Feels like 10°C
51°F / Feels 49°F
Partly Cloudy
Belleville, Illinois
🌞 Daytime
Updated: 2026-04-12 13:00
Humidity
62%
Wind
7.9 km/h NNE
Wind Gust
9.1 km/h
Pressure
1017 mb
Visibility
10 km
UV Index
3.3
(Moderate)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
2.3°C
Wind Degree
21°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
149.9 μg/m³
NO₂
2.1 μg/m³
O₃
94 μg/m³
SO₂
1.2 μg/m³
PM 2.5
5.3 μg/m³
PM 10
12.3 μg/m³
Today's Hourly Forecast
24-hour breakdown for Belleville, Illinois
12 AM
6°
Moderate rain
1 AM
6°
Patchy rain nearby
2 AM
5°
Light drizzle
3 AM
5°
Patchy rain nearby
4 AM
5°
Patchy rain nearby
5 AM
4°
Overcast
6 AM
4°
Overcast
7 AM
4°
Overcast
8 AM
5°
Overcast
9 AM
6°
Overcast
10 AM
7°
Overcast
11 AM
8°
Partly Cloudy
12 PM
9°
Partly Cloudy
1 PM
10°
Partly Cloudy
2 PM
11°
Cloudy
3 PM
11°
Patchy rain nearby
4 PM
11°
Patchy rain nearby
5 PM
10°
Patchy rain nearby
6 PM
10°
Patchy rain nearby
7 PM
9°
Light drizzle
8 PM
8°
Light drizzle
9 PM
7°
Light drizzle
10 PM
7°
Light drizzle
11 PM
6°
Light drizzle
3-Day Forecast
Daily overview for Belleville, Illinois
Today
Moderate rain
11°
/
4°
🌧️ 94% chance of rain
💧 Avg. humidity: 79%
💨 Max wind: 11.9 km/h
🌧️ Total precip: 5.92 mm
☀️ UV Index: 0.7
🌅 Sunrise: 06:51 AM
🌇 Sunset: 08:23 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Moderate rain
6°
/
5°
🌧️ 92% chance of rain
💧 Avg. humidity: 95%
💨 Max wind: 13.3 km/h
🌧️ Total precip: 6.84 mm
☀️ UV Index: 0.1
🌅 Sunrise: 06:49 AM
🌇 Sunset: 08:24 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Patchy rain nearby
14°
/
3°
🌧️ 88% chance of rain
💧 Avg. humidity: 76%
💨 Max wind: 6.8 km/h
🌧️ Total precip: 0.36 mm
☀️ UV Index: 1.1
🌅 Sunrise: 06:47 AM
🌇 Sunset: 08:26 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Belleville
Plan your trip to Belleville, 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 Belleville?
Current conditions in Belleville: Partly Cloudy, temperature 10°C, humidity 62%.
What is the best time to visit Belleville?
The best time to visit Belleville is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Belleville?
Belleville is located at approximately 48.8° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Belleville?
The wettest period in Belleville is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Belleville?
For visits to Belleville during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Belleville in?
Belleville is located in United States, in the state of Illinois.
What are the public holidays in Belleville in 2026?
View the 2026 public holidays for Belleville on our Holidays page.
What are the GPS coordinates used for the weather forecast in Belleville?
The weather forecast for Belleville uses coordinates 48.8177, 6.0983.