Galena weather live forecast

Today's maximum temperature in Galena is expected to be 27°C. Select a day from the live weather forecast for Galena, Illinois, USA for more weather parameters.

Wednesday
12th Aug
27

22

4

5
Thursday
13th Aug
25

21

4

4
Friday
14th Aug
26

20

3

4
Saturday
15th Aug
28

20

6

5
Sunday
16th Aug
26

20

6

7

5-day weather forecast updated at 04:03 on Wednesday 12th 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 12th August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 41% chance of some rain and little or no wind of 5 kph from the east.

27
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
5
UV index (Moderate)
41
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
5
kph wind from E

Galena weather for Thursday 13th August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 25°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 20-30 mm of rainfall expected with 80% chance of some rain and a light breeze of 8 kph from the east.

25
°C maximum temperature
21
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
4
UV index (Moderate)
80
% chance of some rain
<30
mm of rainfall expected
25
°C wind chill
8
kph wind from E

Galena weather for Friday 14th August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 58% chance of some rain and a gentle breeze of 15 kph from the east.

26
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
4
UV index (Moderate)
58
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
15
kph wind from E

Galena weather for Saturday 15th August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 71% chance of some rain and a gentle breeze of 13 kph from the south.

28
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
5
UV index (Moderate)
71
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
13
kph wind from S

Galena weather for Sunday 16th August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 42% chance of some rain and a gentle breeze of 13 kph from the north-west.