Marion weather averages

Going to Marion? Find the best month to visit Marion based on the weather.

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Check Marion weather averages before you book your next holiday in 2019/2020. Today's maximum temperature in Marion is expected to be 28°C, while the average maximum temperature in May is 25°C.

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More about Marion

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The weather for Marion, Illinois shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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

Marion weather averages: best month

Marion Best month Averages
Warmest July 32°C
Sunniest June, July & August 10 hours per day
Least rain August, September & October 8 days

Marion climate guide

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Tropical storm risk: Marion, Illinois hurricane season

% of month affected by tropical storms
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The Marion, Illinois tropical storm risk chart above shows the hurricane season. The chart was processed from data supplied by the US Meteorological Agency (NOAA). Find out more about our data sources.

More about tropical storms

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Marion weather averages by month

Check Marion holiday weather averages for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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Compare Marion weather with the USA

Below the Marion weather chart shows maximum daytime temperature for Marion, Illinois, USA and the USA (Washington). For more weather parameters or to change the destinations shown visit the comparison weather tool.

Maximum daytime temperature (°C)

Marion, Illinois, USA
USA (Washington)
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Metric (°C / mm)  |  Imperial (°F / inches)

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