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Green Bay, USA Weather Averages

July is the hottest month in Green Bay with an average temperature of 21°C (70°F) and the coldest is January at -7°C (19°F). The wettest month is June with an average of 100mm of rain..

Average Temperature Green Bay

What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

Average High Low Temperature Green Bay

What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

Average Rainfall Green Bay

What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

Green Bay : Next 24-Hour Weather

Today - 15th September 2025

Sunrise 06:31

Sunrise

Sunset 19:02

Sunset
14:00
Clear
29°C (84°F)
15:00
Clear
30°C (85°F)
16:00
Clear
29°C (83°F)
17:00
Clear
27°C (80°F)
18:00
Clear
25°C (76°F)
19:00
Clear
22°C (71°F)
20:00
Clear
20°C (67°F)
21:00
Partly cloudy
18°C (63°F)
22:00
Partly cloudy
17°C (62°F)
23:00
Clear
15°C (58°F)

Tomorrow - 16th September 2025

Sunrise 06:31

Sunrise

Sunset 19:02

Sunset
0:00
Partly cloudy
14°C (56°F)
1:00
Mist
13°C (54°F)
2:00
Mist
12°C (53°F)
3:00
Mist
11°C (52°F)
4:00
Mist
11°C (51°F)
5:00
Mist
10°C (50°F)
6:00
Mist
10°C (49°F)
7:00
Mist
12°C (52°F)
8:00
Mist
14°C (56°F)
9:00
Mist
16°C (59°F)
10:00
Cloudy
20°C (67°F)
11:00
Cloudy
23°C (73°F)
12:00
Cloudy
27°C (79°F)
13:00
Clear
29°C (83°F)
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