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

Sunday
15 Dec
15°C6°C
22 Dec
6°C-2°C
Monday
16 Dec
87%
17°C6°C
23 Dec
10°C-1°C
Tuesday
17 Dec
13°C3°C
24 Dec
69%
12°C6°C
Wednesday
18 Dec
87%
9°C2°C
25 Dec
87%
15°C10°C
Thursday
19 Dec
6°C-2°C
26 Dec
19°C10°C
Friday
20 Dec
2°C1°C
27 Dec
81%
19°C14°C
Saturday
21 Dec
4°C-2°C
28 Dec
17°C11°C

Cheapest month to fly to Belleville

Explore price trends for trips to Belleville

Annual Avg. Price58 USD
December 202444 USD
January 202544 USD
February 202557 USD
March 202557 USD
April 202558 USD
May 202557 USD
June 202560 USD
July 202560 USD
August 202544 USD
September 2025101 USD
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