Marion weather live forecast

Today's maximum temperature in Marion is expected to be 22°C. Select a day from the live weather forecast for Marion, Illinois, USA for more weather parameters.

Wednesday
18th Feb
22

12

5

4
Thursday
19th Feb
20

12

3

2
Friday
20th Feb
10

3

9

4
Saturday
21st Feb
6

-1

1

1
Sunday
22nd Feb
2

-5

10

3

5-day weather forecast updated at 04:02 on Wednesday 18th February 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 Wednesday 18th February 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 31 kph from the south-west.

22
°C maximum temperature
12
°C minimum temperature
broken clouds
5
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
22
°C wind chill
31
kph wind from SW

Marion weather for Thursday 19th February 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 20°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the south.

20
°C maximum temperature
12
°C minimum temperature
broken clouds
3
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
24
kph wind from S

Marion weather for Friday 20th February 2026

Expect scattered clouds in Marion, Illinois with a maximum temperature of 10°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the west.

10
°C maximum temperature
3
°C minimum temperature
scattered clouds
9
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
20
kph wind from W

Marion weather for Saturday 21st February 2026

Expect cloudy with sleet or snow in Marion, Illinois with a maximum temperature of 6°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of sleet/snow expected with 36% chance of some sleet or snow and a gentle breeze of 16 kph from the north.

6
°C maximum temperature
-1
°C minimum temperature
cloudy with sleet or snow
1
hour of sunshine
1
UV index (Low)
36
% chance of some sleet or snow
<2
mm of sleet/snow expected
2
°C wind chill
16
kph wind from N

Marion weather for Sunday 22nd February 2026

Expect scattered clouds in Marion, Illinois with a maximum temperature of 2°C, maximum UV of 3 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the north-west.