Galena weather live forecast

Today's maximum temperature in Galena is expected to be 26°C. Select a day from the live weather forecast for Galena, Illinois, USA for more weather parameters.

Saturday
29th Aug
26

17

3

6
Sunday
30th Aug
30

21

6

6
Monday
31st Aug
32

23

9

7
Tuesday
1st Sep
32

23

9

7
Wednesday
2nd Sep
32

23

7

7

5-day weather forecast updated at 04:03 on Saturday 29th August 2026 GMT

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The 5-day weather forecast for Illinois (Galena) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Galena weather forecast by day

Below are the detailed weather forecasts for Galena for the next 5 days.

Galena weather for Saturday 29th August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 26°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 38% chance of some rain and a gentle breeze of 17 kph from the south.

26
°C maximum temperature
17
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
6
UV index (High)
38
% chance of some rain
<2
mm of rainfall expected
26
°C wind chill
17
kph wind from S

Galena weather for Sunday 30th August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 39% chance of some rain and a gentle breeze of 17 kph from the south.

30
°C maximum temperature
21
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
6
UV index (High)
39
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from S

Galena weather for Monday 31st August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 54% chance of some rain and a gentle breeze of 13 kph from the south.

32
°C maximum temperature
23
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
7
UV index (High)
54
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from S

Galena weather for Tuesday 1st September 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 47% chance of some rain and a light breeze of 9 kph from the south-west.

32
°C maximum temperature
23
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
7
UV index (High)
47
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
9
kph wind from SW

Galena weather for Wednesday 2nd September 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a light breeze of 9 kph from the west.