Marion weather live forecast

Today's maximum temperature in Marion is expected to be 15°C. Select a day from the live weather forecast for Marion, Illinois, USA for more weather parameters.

Saturday
2nd May
15

6

5

5
Sunday
3rd May
21

5

13

7
Monday
4th May
26

14

5

6
Tuesday
5th May
20

16

2

6
Wednesday
6th May
16

11

0

3

5-day weather forecast updated at 04:01 on Saturday 2nd May 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 Saturday 2nd May 2026

Expect mostly cloudy with light rain in Marion, Illinois with a maximum temperature of 15°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 41% chance of some rain and a gentle breeze of 16 kph from the north.

15
°C maximum temperature
6
°C minimum temperature
mostly cloudy with light rain
5
hours of sunshine
5
UV index (Moderate)
41
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
16
kph wind from N

Marion weather for Sunday 3rd May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 21°C, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a moderate breeze of 21 kph from the south-west.

21
°C maximum temperature
5
°C minimum temperature
isolated thunderstorms
13
hours of sunshine
7
UV index (High)
25
% chance of some rain
<2
mm of rainfall expected
21
°C wind chill
21
kph wind from SW

Marion weather for Monday 4th May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 26°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 41% chance of some rain and a moderate breeze of 24 kph from the south-west.

26
°C maximum temperature
14
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
6
UV index (High)
41
% chance of some rain
<5
mm of rainfall expected
26
°C wind chill
24
kph wind from SW

Marion weather for Tuesday 5th May 2026

Expect mostly cloudy with rain in Marion, Illinois with a maximum temperature of 20°C, maximum UV of 6 (High) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 99% chance of some rain and a moderate breeze of 23 kph from the south.

20
°C maximum temperature
16
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
6
UV index (High)
99
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
23
kph wind from S

Marion weather for Wednesday 6th May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 65% chance of some rain and a gentle breeze of 14 kph from the north.