Marion weather in January 2027

Q: How cold is it in Marion in January?

Daytime temperatures usually reach -1°C in Marion in January, falling to -10°C at night.

Q: How sunny is it in Marion in January?

There are normally 4 hours of bright sunshine each day in Marion in January - that's 45% of daylight hours.

Q: Is the sea cold around Marion in January?

The average sea temperature around Marion in January is 4°C.

Q: Does it rain in Marion in January?

There are usually 12 days with some rain in Marion in January and the average monthly rainfall is 44mm. Rain may fall as snow in this month.

Expect daytime maximum temperatures of 4°C in Marion, Illinois in January based on long-term weather averages. There are 5 hours of sunshine per day on average with typically 72 mm of rainfall in the month, which might fall as snow.

4
4°C max day temperature
5
5 hours of sunshine per day
9
9 days with some rainfall
-6
-6°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
72
72 mm of monthly rainfall
2
2 (Low) UV index

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The January weather guide for Illinois (Marion) 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 cold is it in Marion in January?

Daytime temperatures usually reach -1°C in Marion in January, falling to -10°C at night.

How sunny is it in Marion in January?

There are normally 4 hours of bright sunshine each day in Marion in January - that's 45% of daylight hours.

Is the sea cold around Marion in January?

The average sea temperature around Marion in January is 4°C.

Does it rain in Marion in January?

There are usually 12 days with some rain in Marion in January and the average monthly rainfall is 44mm. Rain may fall as snow in this month.