Green Bay weather live forecast

Today's maximum temperature in Green Bay is expected to be 21°C. Select a day from the live weather forecast for Green Bay, Wisconsin, USA for more weather parameters.

Thursday
17th Sep
21

14

6

4
Friday
18th Sep
19

14

1

2
Saturday
19th Sep
17

14

0

2
Sunday
20th Sep
19

13

0

4
Monday
21st Sep
17

11

0

4

5-day weather forecast updated at 04:01 on Thursday 17th September 2026 GMT

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The 5-day weather forecast for Wisconsin (Green Bay) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Green Bay weather forecast by day

Below are the detailed weather forecasts for Green Bay for the next 5 days.

Green Bay weather for Thursday 17th September 2026

Expect broken clouds in Green Bay, Wisconsin with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the north-east.

21
°C maximum temperature
14
°C minimum temperature
broken clouds
6
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
8
kph wind from NE

Green Bay weather for Friday 18th September 2026

Expect isolated thunderstorms in Green Bay, Wisconsin with a maximum temperature of 19°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 83% chance of some rain and a gentle breeze of 14 kph from the east.

19
°C maximum temperature
14
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
2
UV index (Low)
83
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
14
kph wind from E

Green Bay weather for Saturday 19th September 2026

Expect isolated thunderstorms in Green Bay, Wisconsin with a maximum temperature of 17°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 40-50 mm of rainfall expected with 86% chance of some rain and a moderate breeze of 20 kph from the east.

17
°C maximum temperature
14
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
2
UV index (Low)
86
% chance of some rain
<50
mm of rainfall expected
0
no heat & humidity
20
kph wind from E

Green Bay weather for Sunday 20th September 2026

Expect overcast skies in Green Bay, Wisconsin with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the north-east.

19
°C maximum temperature
13
°C minimum temperature
overcast skies
0
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
19
°C wind chill
21
kph wind from NE

Green Bay weather for Monday 21st September 2026

Expect overcast with light rain in Green Bay, Wisconsin with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 29% chance of some rain and a gentle breeze of 17 kph from the north-east.