Galena weather live forecast

Today's maximum temperature in Galena is expected to be 16°C. Select a day from the live weather forecast for Galena, Illinois, USA for more weather parameters.

Thursday
21st May
16

8

3

UV7
Friday
22nd May
18

9

2

UV3
Saturday
23rd May
22

12

3

UV5
Sunday
24th May
25

13

10

UV7
Monday
25th May
28

13

12

UV7

5-day weather forecast updated at 04:02 on Thursday 21st May 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 21st May 2026

Expect mostly cloudy with light rain in Galena, Illinois with a maximum temperature of 16°C, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 16% chance of some rain and a gentle breeze of 14 kph from the east.

16
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
UV7
UV index (High)
16
% chance of some rain
<2
mm of rainfall expected
16
°C wind chill
14
kph wind from E

Galena weather for Friday 22nd May 2026

Expect mostly cloudy with light rain in Galena, Illinois with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 26% chance of some rain and a gentle breeze of 17 kph from the east.

18
°C maximum temperature
9
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
UV3
UV index (Moderate)
26
% chance of some rain
<2
mm of rainfall expected
18
°C wind chill
17
kph wind from E

Galena weather for Saturday 23rd May 2026

Expect mostly cloudy with light rain in Galena, Illinois with a maximum temperature of 22°C, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 23% chance of some rain and a light breeze of 7 kph from the east.

22
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
UV5
UV index (Moderate)
23
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
7
kph wind from E

Galena weather for Sunday 24th May 2026

Expect scattered clouds in Galena, Illinois with a maximum temperature of 25°C, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the west.

25
°C maximum temperature
13
°C minimum temperature
scattered clouds
10
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
8
kph wind from W

Galena weather for Monday 25th May 2026

Expect scattered clouds in Galena, Illinois with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south.