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.

Tuesday
3rd Mar
21

5

4

5
Wednesday
4th Mar
22

13

3

4
Thursday
5th Mar
21

15

5

3
Friday
6th Mar
25

14

7

6
Saturday
7th Mar
21

13

4

1

5-day weather forecast updated at 04:01 on Tuesday 3rd March 2026 GMT

More about Marion

Marion by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Illinois

TUI: Top deals & discounts on 2026/2027 holidays

Sale

Explore latest special offers & online deals from TUI
Free child places & £0 deposits with direct debit available
Book summer & winter sun holidays in 2026/2027

Go to TUI deal >>

View all TUI offers

TUI deal finder

Destination

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 Tuesday 3rd March 2026

Expect mostly cloudy with light rain in Marion, Illinois with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 24% chance of some rain and a gentle breeze of 19 kph from the south-west.

21
°C maximum temperature
5
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
5
UV index (Moderate)
24
% chance of some rain
<5
mm of rainfall expected
21
°C wind chill
19
kph wind from SW

Marion weather for Wednesday 4th March 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 22°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south.

22
°C maximum temperature
13
°C minimum temperature
broken clouds
3
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
22
°C wind chill
16
kph wind from S

Marion weather for Thursday 5th March 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 21°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 80% chance of some rain and a gentle breeze of 18 kph from the south-west.

21
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
3
UV index (Moderate)
80
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
18
kph wind from SW

Marion weather for Friday 6th March 2026

Expect sunshine and showers in Marion, Illinois with a maximum temperature of 25°C, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 18% chance of some rain and a moderate breeze of 25 kph from the south.

25
°C maximum temperature
14
°C minimum temperature
sunshine and showers
7
hours of sunshine
6
UV index (High)
18
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
25
kph wind from S

Marion weather for Saturday 7th March 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 21°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 92% chance of some rain and a moderate breeze of 21 kph from the south-west.