Marion weather live forecast

Today's maximum temperature in Marion is expected to be 26°C. Select a day from the live weather forecast for Marion, Illinois, USA for more weather parameters.

Monday
4th May
26

14

6

6
Tuesday
5th May
18

9

0

2
Wednesday
6th May
14

8

3

7
Thursday
7th May
17

7

10

7
Friday
8th May
21

7

5

7

5-day weather forecast updated at 04:01 on Monday 4th 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 Monday 4th May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 26°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 17% chance of some rain and a moderate breeze of 28 kph from the south-west.

26
°C maximum temperature
14
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
6
UV index (High)
17
% chance of some rain
<5
mm of rainfall expected
26
°C wind chill
28
kph wind from SW

Marion weather for Tuesday 5th May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 18°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 100% chance of some rain and a moderate breeze of 22 kph from the south.

18
°C maximum temperature
9
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
2
UV index (Low)
100
% chance of some rain
<30
mm of rainfall expected
18
°C wind chill
22
kph wind from S

Marion weather for Wednesday 6th May 2026

Expect mostly cloudy with light rain in Marion, Illinois with a maximum temperature of 14°C, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 46% chance of some rain and a gentle breeze of 17 kph from the north.

14
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
7
UV index (High)
46
% chance of some rain
<2
mm of rainfall expected
14
°C wind chill
17
kph wind from N

Marion weather for Thursday 7th May 2026

Expect scattered clouds in Marion, Illinois with a maximum temperature of 17°C, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north-west.

17
°C maximum temperature
7
°C minimum temperature
scattered clouds
10
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
17
°C wind chill
13
kph wind from NW

Marion weather for Friday 8th May 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 21°C, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.