Decatur weather in July 2024

Expect 31°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Decatur in July. Check more long-term weather averages for Decatur in July before you book your next holiday to Illinois in 2024/2025.

  • 31°C maximum daytime temperature in July in Decatur31
    31°C max day temperature
  • 10 hours of sunshine per day
  • 9 days with some rainfall in July in Decatur9
    9 days with some rainfall
  • 18°C minimum night-time temperature in July in Decatur18
    18°C min night temperature
  • 15 hours of daylight per day in July in Decatur15
    15 hours of daylight per day
  • High heat & humidity in July in DecaturH
    High heat & humidity
  • 107 mm monthly rainfall in July in Decatur107
    107 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in July in Decatur9
    9 (Very High) UV index

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The July 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)

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How hot is it in Decatur in July?

Daytime temperatures usually reach 31°C in Decatur in July with high heat and humidity, falling to 18°C at night.

How sunny is it in Decatur in July?

There are normally 10 hours of bright sunshine each day in Decatur in July - that's 70% of daylight hours.

Does it rain in Decatur in July?

There are usually 9 days with some rain in Decatur in July and the average monthly rainfall is 107mm.

Decatur July sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st July 2024 05:32 20:28
Tuesday, 16th July 2024 05:41 20:22
Wednesday, 31st July 2024 05:54 20:10

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