Galena weather live forecast

Today's maximum temperature in Galena is expected to be 23°C. Select a day from the live weather forecast for Galena, Illinois, USA for more weather parameters.

Wednesday
5th Aug
23

17

4

6
Thursday
6th Aug
26

14

9

7
Friday
7th Aug
28

16

11

6
Saturday
8th Aug
27

19

7

7
Sunday
9th Aug
29

19

4

4

5-day weather forecast updated at 04:02 on Wednesday 5th 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 Wednesday 5th August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 23°C, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 59% chance of some rain and little or no wind of 5 kph from the north.

23
°C maximum temperature
17
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
6
UV index (High)
59
% chance of some rain
<20
mm of rainfall expected
23
°C wind chill
5
kph wind from N

Galena weather for Thursday 6th August 2026

Expect scattered clouds in Galena, Illinois with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the east.

26
°C maximum temperature
14
°C minimum temperature
scattered clouds
9
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
3
kph wind from E

Galena weather for Friday 7th August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 2-5 mm of rainfall expected with 41% chance of some rain and a light breeze of 10 kph from the south.

28
°C maximum temperature
16
°C minimum temperature
isolated thunderstorms
11
hours of sunshine
6
UV index (High)
41
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
10
kph wind from S

Galena weather for Saturday 8th August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 35% chance of some rain and little or no wind of 6 kph from the north-west.

27
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
7
UV index (High)
35
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
6
kph wind from NW

Galena weather for Sunday 9th August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 52% chance of some rain and a light breeze of 7 kph from the south-east.