Marion weather live forecast

Today's maximum temperature in Marion is expected to be 28°C. Select a day from the live weather forecast for Marion, Illinois, USA for more weather parameters.

Monday
27th Apr
28

18

4

6
Tuesday
28th Apr
24

17

4

8
Wednesday
29th Apr
19

10

12

8
Thursday
30th Apr
19

8

8

8
Friday
1st May
17

10

0

8

5-day weather forecast updated at 04:01 on Monday 27th April 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 27th April 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 89% chance of some rain and a fresh breeze of 31 kph from the south.

28
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
6
UV index (High)
89
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
31
kph wind from S

Marion weather for Tuesday 28th April 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 24°C, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 92% chance of some rain and a gentle breeze of 17 kph from the west.

24
°C maximum temperature
17
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
8
UV index (Very High)
92
% chance of some rain
<20
mm of rainfall expected
24
°C wind chill
17
kph wind from W

Marion weather for Wednesday 29th April 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 19°C, maximum UV of 8 (Very High) and 12 hours of bright sunshine. There are 10-20 mm of rainfall expected with 27% chance of some rain and a moderate breeze of 22 kph from the north-west.

19
°C maximum temperature
10
°C minimum temperature
isolated thunderstorms
12
hours of sunshine
8
UV index (Very High)
27
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
22
kph wind from NW

Marion weather for Thursday 30th April 2026

Expect scattered clouds in Marion, Illinois with a maximum temperature of 19°C, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north.

19
°C maximum temperature
8
°C minimum temperature
scattered clouds
8
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
19
°C wind chill
11
kph wind from N

Marion weather for Friday 1st May 2026

Expect overcast skies in Marion, Illinois with a maximum temperature of 17°C, maximum UV of 8 (Very High) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north.