Marion weather live forecast

Today's maximum temperature in Marion is expected to be 24°C. Select a day from the live weather forecast for Marion, Illinois, USA for more weather parameters.

Saturday
23rd May
24

17

5

UV5
Sunday
24th May
25

18

6

UV8
Monday
25th May
25

18

0

UV5
Tuesday
26th May
24

19

1

UV4
Wednesday
27th May
25

20

2

UV2

5-day weather forecast updated at 04:01 on Saturday 23rd 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 23rd May 2026

Expect mostly cloudy with light rain in Marion, Illinois with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 16% chance of some rain and a light breeze of 8 kph from the west.

24
°C maximum temperature
17
°C minimum temperature
mostly cloudy with light rain
5
hours of sunshine
UV5
UV index (Moderate)
16
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
8
kph wind from W

Marion weather for Sunday 24th May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 25°C, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 62% chance of some rain and little or no wind of 6 kph from the south-west.

25
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
UV8
UV index (Very High)
62
% chance of some rain
<10
mm of rainfall expected
25
°C wind chill
6
kph wind from SW

Marion weather for Monday 25th May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 64% chance of some rain and a light breeze of 11 kph from the east.

25
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
UV5
UV index (Moderate)
64
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
11
kph wind from E

Marion weather for Tuesday 26th May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 24°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 85% chance of some rain and a light breeze of 11 kph from the south-east.

24
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
UV4
UV index (Moderate)
85
% chance of some rain
<20
mm of rainfall expected
24
°C wind chill
11
kph wind from SE

Marion weather for Wednesday 27th May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 25°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 90% chance of some rain and a light breeze of 9 kph from the south.