Marion weather live forecast

Today's maximum temperature in Marion is expected to be 19°C. Select a day from the live weather forecast for Marion, Illinois, USA for more weather parameters.

Friday
22nd May
19

16

0

UV1
Saturday
23rd May
24

17

5

UV3
Sunday
24th May
25

17

6

UV7
Monday
25th May
25

18

0

UV7
Tuesday
26th May
25

19

2

UV6

5-day weather forecast updated at 04:01 on Friday 22nd 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 Friday 22nd May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 19°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 97% chance of some rain and a light breeze of 12 kph from the north-east.

19
°C maximum temperature
16
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
UV1
UV index (Low)
97
% chance of some rain
<20
mm of rainfall expected
19
°C wind chill
12
kph wind from NE

Marion weather for Saturday 23rd May 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 24°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north-west.

24
°C maximum temperature
17
°C minimum temperature
broken clouds
5
hours of sunshine
UV3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
8
kph wind from NW

Marion weather for Sunday 24th May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 25°C, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 69% chance of some rain and a light breeze of 8 kph from the south-west.

25
°C maximum temperature
17
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
UV7
UV index (High)
69
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
8
kph wind from SW

Marion weather for Monday 25th May 2026

Expect overcast skies in Marion, Illinois with a maximum temperature of 25°C, maximum UV of 7 (High) and no hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the east.

25
°C maximum temperature
18
°C minimum temperature
overcast skies
0
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
10
kph wind from E

Marion weather for Tuesday 26th May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 25°C, maximum UV of 6 (High) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 80% chance of some rain and a light breeze of 12 kph from the south-east.