Decatur weather in June 2025

Expect 29°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Decatur in June. Check more long-term weather averages for Decatur in June before you book your next holiday to Illinois in 2025/2026.

  • 29°C maximum daytime temperature in June in Decatur29
    29°C max day temperature
  • 10 hours of sunshine per day
  • 9 days with some rainfall in June in Decatur9
    9 days with some rainfall
  • 16°C minimum night-time temperature in June in Decatur16
    16°C min night temperature
  • 15 hours of daylight per day in June in Decatur15
    15 hours of daylight per day
  • Moderate heat & humidity in June in DecaturM
    Moderate heat & humidity
  • 100 mm monthly rainfall in June in Decatur100
    100 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in June in Decatur9
    9 (Very High) UV index

More about Decatur

Decatur by month

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

Recommended for Illinois

  • Explore best fares on flights worldwide with Air France
  • Book deals on flights to Europe, Africa, Asia & Americas
  • Check out promo fares by continent. Filter by cabin class

The June 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)

Back to top

More about the USA

How hot is it in Decatur in June?

Daytime temperatures usually reach 29°C in Decatur in June with moderate heat and humidity, falling to 16°C at night.

How sunny is it in Decatur in June?

There are normally 10 hours of bright sunshine each day in Decatur in June - that's 69% of daylight hours.

Does it rain in Decatur in June?

There are usually 9 days with some rain in Decatur in June and the average monthly rainfall is 100mm.

Decatur June sunrise & sunset times

Browse the sunrise and sunset times for Decatur in June 2025. Select a month to view Decatur sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st June 2025 04:29 19:18
Sunday, 15th June 2025 04:27 19:26
Monday, 30th June 2025 04:31 19:28

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^