Flights to Decatur, IL, United States

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Cheap flights to Decatur

Weather in Decatur

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January1°C-6°C
February3°C-4°C
March11°C2°C
April16°C7°C
May22°C13°C
June27°C17°C
July28°C19°C
August28°C18°C
September25°C14°C
October18°C9°C
November10°C2°C
December4°C-1°C
Hottest Month
28°C
July
Coldest month
-6°C
January
Sunny days
265
days per year
Snow days
11
days per year

14 day forecast

Saturday
11 Oct
26°C12°C
18 Oct
83%
21°C14°C
Sunday
12 Oct
26°C11°C
19 Oct
17°C11°C
Monday
13 Oct
24°C10°C
20 Oct
18°C7°C
Tuesday
14 Oct
20°C17°C
21 Oct
22°C10°C
Wednesday
15 Oct
89%
16°C11°C
22 Oct
88%
13°C12°C
Thursday
16 Oct
22°C8°C
23 Oct
15°C12°C
Friday
17 Oct
19°C14°C
24 Oct
87%
16°C11°C

Cheapest month to fly to Decatur

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Showing prices in USD

Annual Avg. Price101 USD
October 2025101 USD
November 2025101 USD
December 2025101 USD
January 2026101 USD
February 2026101 USD
March 2026101 USD
April 2026101 USD
May 2026101 USD
June 2026101 USD
July 2026101 USD
August 2026101 USD

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