Marion weather live forecast

Today's maximum temperature in Marion is expected to be 20°C. Select a day from the live weather forecast for Marion, Illinois, USA for more weather parameters.

Sunday
3rd May
20

4

13

7
Monday
4th May
25

13

7

7
Tuesday
5th May
19

11

0

4
Wednesday
6th May
15

9

1

3
Thursday
7th May
17

8

8

7

5-day weather forecast updated at 04:01 on Sunday 3rd May 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 Sunday 3rd May 2026

Expect clear skies in Marion, Illinois with a maximum temperature of 20°C, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south-west.

20
°C maximum temperature
4
°C minimum temperature
clear skies
13
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
23
kph wind from SW

Marion weather for Monday 4th May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 25°C, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 16% chance of some rain and a moderate breeze of 26 kph from the south-west.

25
°C maximum temperature
13
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
7
UV index (High)
16
% chance of some rain
<5
mm of rainfall expected
25
°C wind chill
26
kph wind from SW

Marion weather for Tuesday 5th May 2026

Expect isolated thunderstorms in Marion, Illinois with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 100% chance of some rain and a moderate breeze of 22 kph from the south.

19
°C maximum temperature
11
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
4
UV index (Moderate)
100
% chance of some rain
<30
mm of rainfall expected
19
°C wind chill
22
kph wind from S

Marion weather for Wednesday 6th May 2026

Expect mostly cloudy with light rain in Marion, Illinois with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 70% chance of some rain and a gentle breeze of 15 kph from the north.

15
°C maximum temperature
9
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
3
UV index (Moderate)
70
% chance of some rain
<5
mm of rainfall expected
15
°C wind chill
15
kph wind from N

Marion weather for Thursday 7th May 2026

Expect broken clouds in Marion, Illinois with a maximum temperature of 17°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north-west.