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.

Thursday
13th Aug
23

20

1

1
Friday
14th Aug
25

20

1

4
Saturday
15th Aug
28

21

4

5
Sunday
16th Aug
27

20

4

5
Monday
17th Aug
26

18

10

7

5-day weather forecast updated at 04:03 on Thursday 13th 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 Thursday 13th August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 23°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 20-30 mm of rainfall expected with 96% chance of some rain and a light breeze of 12 kph from the east.

23
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
1
UV index (Low)
96
% chance of some rain
<30
mm of rainfall expected
23
°C wind chill
12
kph wind from E

Galena weather for Friday 14th August 2026

Expect isolated thunderstorms in Galena, Illinois with a maximum temperature of 25°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 68% chance of some rain and a gentle breeze of 14 kph from the east.

25
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
4
UV index (Moderate)
68
% chance of some rain
<20
mm of rainfall expected
25
°C wind chill
14
kph wind from E

Galena weather for Saturday 15th August 2026

Expect broken clouds in Galena, Illinois with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

28
°C maximum temperature
21
°C minimum temperature
broken clouds
4
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
M
moderate heat & humidity
11
kph wind from SW

Galena weather for Sunday 16th August 2026

Expect broken clouds 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 0 mm of rainfall expected and a light breeze of 11 kph from the north-west.

27
°C maximum temperature
20
°C minimum temperature
broken clouds
4
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
L
low heat & humidity
11
kph wind from NW

Galena weather for Monday 17th 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 10 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north.