Galena weather live forecast

Today's maximum temperature in Galena is expected to be 22°C. Select a day from the live weather forecast for Galena, Illinois, USA for more weather parameters.

Thursday
17th Sep
22

17

1

3
Friday
18th Sep
21

15

2

3
Saturday
19th Sep
25

19

4

5
Sunday
20th Sep
18

15

0

1
Monday
21st Sep
17

13

0

1

5-day weather forecast updated at 04:03 on Thursday 17th September 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 Thursday 17th September 2026

Expect overcast skies in Galena, Illinois with a maximum temperature of 22°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north-east.

22
°C maximum temperature
17
°C minimum temperature
overcast skies
1
hour of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
22
°C wind chill
6
kph wind from NE

Galena weather for Friday 18th September 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 21°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 74% chance of some rain and a gentle breeze of 16 kph from the east.

21
°C maximum temperature
15
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
3
UV index (Moderate)
74
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
16
kph wind from E

Galena weather for Saturday 19th September 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 72% chance of some rain and a gentle breeze of 13 kph from the south.

25
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
5
UV index (Moderate)
72
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
13
kph wind from S

Galena weather for Sunday 20th September 2026

Expect overcast skies in Galena, Illinois with a maximum temperature of 18°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north-east.

18
°C maximum temperature
15
°C minimum temperature
overcast skies
0
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
17
kph wind from NE

Galena weather for Monday 21st September 2026

Expect overcast skies in Galena, Illinois with a maximum temperature of 17°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-east.