Marion weather live forecast

Today's maximum temperature in Marion is expected to be 2°C. Select a day from the live weather forecast for Marion, Illinois, USA for more weather parameters.

Monday
16th Mar
2

-4

4

2
Tuesday
17th Mar
3

-6

8

4
Wednesday
18th Mar
15

1

8

5
Thursday
19th Mar
19

6

5

6
Friday
20th Mar
24

8

8

5

5-day weather forecast updated at 04:01 on Monday 16th March 2026 GMT

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The 5-day weather forecast for Illinois (Marion) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Marion weather forecast by day

Below are the detailed weather forecasts for Marion for the next 5 days.

Marion weather for Monday 16th March 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 2°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 34 kph from the north-west.

2
°C maximum temperature
-4
°C minimum temperature
broken clouds
4
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
-5
°C wind chill
34
kph wind from NW

Marion weather for Tuesday 17th March 2026

Expect scattered clouds in Marion, Illinois with a maximum temperature of 3°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north-west.

3
°C maximum temperature
-6
°C minimum temperature
scattered clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
-1
°C wind chill
19
kph wind from NW

Marion weather for Wednesday 18th March 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 15°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the south.

15
°C maximum temperature
1
°C minimum temperature
broken clouds
8
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
24
kph wind from S

Marion weather for Thursday 19th March 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 19°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-west.

19
°C maximum temperature
6
°C minimum temperature
broken clouds
5
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
13
kph wind from SW

Marion weather for Friday 20th March 2026

Expect scattered clouds in Marion, Illinois with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.