Marion Weather in June

What's the weather like in Marion (Illinois) in June 2025?

The climate in Marion during June can be summarized as hot and a little damp.

June is in the summer in Marion and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 30°C (86°F), whilst at night 17°C (63°F) is normal.

Marion weather averages (imperial / metric)
Daytime temperature 30.1°C 86.2°F
Nightly temperature 17.1°C 62.8°F
Average temperature 23.6°C 74.5°F
Daily sunshine 10.9 hrs
Avg rainfall 96 mm 3.8 ins
Rainy days 9 days
Sea temperature 18.1°C 64.7°F
Humidity 68%
Windspeed 13.7kph 9 mph

On average June is the 6th driest month of the year in Marion with around 96mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.9 hours of sunshine per day.

June temperatures in Marion

Marion average temperature in June

June rainfall

Marion average rain in June

June hourly sunshine

Marion average rain in June

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Marion in June 2025.

Other monthly averages

Best places to visit in June

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Marion weather stats

Marion weather statistics
Hottest month: July 31.7°C 89.1°F
Driest month: January 72mm 2.8ins
Sunniest month: July 11hrs
Coldest month: January 4.2°C 39.6°F
Wettest month: March 124mm 4.9ins
Map showing location of Marion (37.73061, -88.93313) Marion map pin © Google

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