Marion weather live forecast

Today's maximum temperature in Marion is expected to be 21°C. Select a day from the live weather forecast for Marion, Illinois, USA for more weather parameters.

Sunday
29th Mar
21

5

7

7
Monday
30th Mar
25

14

7

6
Tuesday
31st Mar
28

18

7

7
Wednesday
1st Apr
18

10

6

1
Thursday
2nd Apr
20

11

1

4

5-day weather forecast updated at 04:01 on Sunday 29th 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 Sunday 29th March 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 21°C, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south.

21
°C maximum temperature
5
°C minimum temperature
broken clouds
7
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
21
°C wind chill
22
kph wind from S

Marion weather for Monday 30th March 2026

Expect scattered clouds in Marion, Illinois with a maximum temperature of 25°C, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the south.

25
°C maximum temperature
14
°C minimum temperature
scattered clouds
7
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
29
kph wind from S

Marion weather for Tuesday 31st March 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 32 kph from the south.

28
°C maximum temperature
18
°C minimum temperature
broken clouds
7
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
32
kph wind from S

Marion weather for Wednesday 1st April 2026

Expect sunshine and showers in Marion, Illinois with a maximum temperature of 18°C, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 87% chance of some rain and a gentle breeze of 18 kph from the north-east.

18
°C maximum temperature
10
°C minimum temperature
sunshine and showers
6
hours of sunshine
1
UV index (Low)
87
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
18
kph wind from NE

Marion weather for Thursday 2nd April 2026

Expect mostly cloudy with rain in Marion, Illinois with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 81% chance of some rain and a gentle breeze of 18 kph from the south-east.