Decatur weather in August 2024

Expect 29°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Decatur in August. Check more long-term weather averages for Decatur in August before you book your next holiday to Illinois in 2024/2025.

29
29°C max day temperature
9
9 hours of sunshine per day
8
8 days with some rainfall
17
17°C min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
93
93 mm of monthly rainfall
8
8 (Very High) UV index

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The August weather guide for Illinois (Decatur) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)

More about the USA

How hot is it in Decatur in August?

Daytime temperatures usually reach 29°C in Decatur in August with moderate heat and humidity, falling to 17°C at night.

How sunny is it in Decatur in August?

There are normally 9 hours of bright sunshine each day in Decatur in August - that's 67% of daylight hours.

Does it rain in Decatur in August?

There are usually 8 days with some rain in Decatur in August and the average monthly rainfall is 93mm.

Decatur August sunrise & sunset times

Browse the sunrise and sunset times for Decatur in August 2024. Select a month to view Decatur sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Thursday, 1st August 2024	05:55	20:08
Friday, 16th August 2024	06:09	19:50
Saturday, 31st August 2024	06:23	19:28

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Illinois - quick facts
Flight time^✝	8.5 hours
Time difference	UK -6 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Culture
Tourist info	Illinois Department of Commerce & Economic Opportunity