Marion weather live forecast

Today's maximum temperature in Marion is expected to be 21°C. Select a day from the live weather forecast for Marion, Illinois, USA for more weather parameters.

Thursday
5th Mar
21

16

2

4
Friday
6th Mar
25

15

5

5
Saturday
7th Mar
22

8

3

3
Sunday
8th Mar
18

5

12

6
Monday
9th Mar
24

8

5

6

5-day weather forecast updated at 04:01 on Thursday 5th March 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 Thursday 5th March 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 20-30 mm of rainfall expected with 88% chance of some rain and a gentle breeze of 17 kph from the south-west.

21
°C maximum temperature
16
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
4
UV index (Moderate)
88
% chance of some rain
<30
mm of rainfall expected
21
°C wind chill
17
kph wind from SW

Marion weather for Friday 6th March 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the south.

25
°C maximum temperature
15
°C minimum temperature
broken clouds
5
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
25
°C wind chill
26
kph wind from S

Marion weather for Saturday 7th March 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 22°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 86% chance of some rain and a moderate breeze of 23 kph from the south.

22
°C maximum temperature
8
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
3
UV index (Moderate)
86
% chance of some rain
<20
mm of rainfall expected
22
°C wind chill
23
kph wind from S

Marion weather for Sunday 8th March 2026

Expect clear skies in Marion, Illinois with a maximum temperature of 18°C, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south.

18
°C maximum temperature
5
°C minimum temperature
clear skies
12
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
18
°C wind chill
11
kph wind from S

Marion weather for Monday 9th March 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 24°C, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south.