Marion weather live forecast

Today's maximum temperature in Marion is expected to be 29°C. Select a day from the live weather forecast for Marion, Illinois, USA for more weather parameters.

Saturday
6th Jun
29

22

3

9
Sunday
7th Jun
28

22

3

8
Monday
8th Jun
26

22

4

6
Tuesday
9th Jun
29

22

7

8
Wednesday
10th Jun
33

23

11

10

5-day weather forecast updated at 04:01 on Saturday 6th June 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 6th June 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-west.

29
°C maximum temperature
22
°C minimum temperature
broken clouds
3
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from SW

Marion weather for Sunday 7th June 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 72% chance of some rain and a gentle breeze of 13 kph from the south.

28
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
8
UV index (Very High)
72
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
13
kph wind from S

Marion weather for Monday 8th June 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 97% chance of some rain and a gentle breeze of 17 kph from the south.

26
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
6
UV index (High)
97
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
17
kph wind from S

Marion weather for Tuesday 9th June 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 76% chance of some rain and a gentle breeze of 15 kph from the south-west.

29
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
8
UV index (Very High)
76
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
15
kph wind from SW

Marion weather for Wednesday 10th June 2026

Expect scattered clouds in Marion, Illinois with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.