Flights to Belleville, IL, United States

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Weather in Belleville

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January3°C-3°C
February6°C-2°C
March13°C3°C
April18°C8°C
May23°C14°C
June29°C19°C
July30°C20°C
August29°C19°C
September26°C16°C
October19°C10°C
November12°C3°C
December7°C0°C
Hottest Month
30°C
July
Coldest month
-3°C
January
Sunny days
264
days per year
Snow days
9
days per year

14 day forecast

Saturday
7 Jun
77%
22°C19°C
14 Jun
87%
25°C21°C
Sunday
8 Jun
29°C18°C
15 Jun
68%
30°C22°C
Monday
9 Jun
83%
29°C19°C
16 Jun
31°C21°C
Tuesday
10 Jun
28°C16°C
17 Jun
30°C20°C
Wednesday
11 Jun
28°C16°C
18 Jun
78%
32°C22°C
Thursday
12 Jun
89%
26°C19°C
19 Jun
82%
33°C24°C
Friday
13 Jun
84%
28°C21°C
20 Jun
89%
34°C24°C

Cheapest month to fly to Belleville

Explore price trends for trips to Belleville

Annual Avg. Price314 GBP
July 2025400 GBP
August 2025259 GBP
September 2025258 GBP
October 2025312 GBP
November 2025342 GBP
December 2025288 GBP
January 2026308 GBP
February 2026346 GBP

Frequently asked questions

Main airports in Belleville, Illinois
Getting from the airport to Belleville, Illinois
Best time of the year to fly to Belleville, Illinois
Things to do in Belleville, Illinois
When to book your flight to Belleville, Illinois
Ideal duration for a stay in Belleville, Illinois
Top tourist attractions in Belleville, Illinois
Safety walking at night in Belleville, Illinois
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