Green Bay, WI 14-Day Forecast
Wisconsin, United States 🇺🇸
68°
Overcast right now
Today: high 75°, low 58°
Updated 1 min ago
Green Bay weather for the next 14 days
Wednesday, September 16
Overcast High 67° Low 56°Precipitation
15%
· 0.0 in
Max wind
9 mph
Humidity
67%
UV index
5 - Moderate
Sunrise / sunset
06:32 AM / 07:01 PM
Thursday, September 17
Patchy rain nearby High 67° Low 58°Precipitation
62%
· 0.04 in
Max wind
10 mph
Humidity
80%
UV index
5 - Moderate
Sunrise / sunset
06:33 AM / 06:59 PM
Friday, September 18
Overcast High 59° Low 50°Precipitation
89%
· 0.65 in
Max wind
17 mph
Humidity
83%
UV index
1 - Low
Sunrise / sunset
06:34 AM / 06:57 PM
Saturday, September 19
Patchy rain nearby High 57° Low 52°Precipitation
93%
· 0.67 in
Max wind
15 mph
Humidity
95%
UV index
1 - Low
Sunrise / sunset
06:35 AM / 06:55 PM
Sunday, September 20
Overcast High 62° Low 57°Precipitation
26%
· 0.0 in
Max wind
16 mph
Humidity
80%
UV index
4 - Moderate
Sunrise / sunset
06:37 AM / 06:54 PM
Monday, September 21
Overcast High 60° Low 54°Precipitation
89%
· 1.06 in
Max wind
16 mph
Humidity
82%
UV index
3 - Moderate
Sunrise / sunset
06:38 AM / 06:52 PM
Tuesday, September 22
Patchy rain nearby High 64° Low 57°Precipitation
76%
· 0.07 in
Max wind
11 mph
Humidity
90%
UV index
4 - Moderate
Sunrise / sunset
06:39 AM / 06:50 PM
Wednesday, September 23
Patchy rain nearby High 66° Low 60°Precipitation
83%
· 0.12 in
Max wind
8 mph
Humidity
90%
UV index
4 - Moderate
Sunrise / sunset
06:40 AM / 06:48 PM
Thursday, September 24
Moderate or heavy rain shower High 68° Low 62°Precipitation
94%
· 0.94 in
Max wind
14 mph
Humidity
96%
UV index
5 - Moderate
Sunrise / sunset
06:41 AM / 06:46 PM
Friday, September 25
Overcast High 65° Low 59°Precipitation
29%
· 0.0 in
Max wind
9 mph
Humidity
89%
UV index
5 - Moderate
Sunrise / sunset
06:42 AM / 06:44 PM
Saturday, September 26
Sunny High 61° Low 51°Precipitation
10%
· 0.0 in
Max wind
18 mph
Humidity
68%
UV index
4 - Moderate
Sunrise / sunset
06:44 AM / 06:42 PM
Sunday, September 27
Sunny High 59° Low 44°Precipitation
6%
· 0.0 in
Max wind
11 mph
Humidity
59%
UV index
4 - Moderate
Sunrise / sunset
06:45 AM / 06:40 PM
Monday, September 28
Sunny High 61° Low 45°Precipitation
7%
· 0.0 in
Max wind
8 mph
Humidity
64%
UV index
5 - Moderate
Sunrise / sunset
06:46 AM / 06:39 PM
Green Bay 14-day outlook: the story
The warmest day of Green Bay's 14-day outlook is Tuesday, September 15 with a high near 75°F (24°C); the coolest night comes Sunday, September 27, dipping to 44°F (7°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 64°F (18°C), about 9°F (5°C) below the typical September high of 73°F (23°C).
Precipitation is most likely on Tuesday 15, Thursday 17, Friday 18, Saturday 19 and beyond; the wettest day looks like Monday, September 21 with about 1.06 in (26.9 mm) expected. For the weekend, expect Saturday 57°F (14°C) and patchy rain nearby / Sunday 62°F (16°C) and overcast.
For typical conditions month by month, see the Green Bay climate & average temperatures guide.
Green Bay forecast questions
Will it rain in Green Bay this week?
The forecast currently shows meaningful precipitation chances on 8 of the next 14 days, peaking around Monday, September 21.
What will be the warmest day in Green Bay over the next 14 days?
Tuesday, September 15, with a forecast high near 75°F (24°C).
How accurate is a 14-day forecast for Green Bay?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Green Bay by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 27° | 14° | 7 | 1.5 in | 5.2 h/day | 76% |
| February | 30° | 13° | 7 | 1.4 in | 7.2 h/day | 71% |
| March | 42° | 25° | 10 | 2.6 in | 8.1 h/day | 67% |
| April | 53° | 35° | 13 | 3.5 in | 8.9 h/day | 66% |
| May | 67° | 48° | 11 | 3.7 in | 10.6 h/day | 65% |
| June | 77° | 59° | 11 | 3.8 in | 11.9 h/day | 66% |
| July | 82° | 64° | 11 | 3.8 in | 12.7 h/day | 68% |
| August | 79° | 63° | 11 | 3.8 in | 11.3 h/day | 71% |
| September | 73° | 57° | 9 | 2.8 in | 9.7 h/day | 73% |
| October | 59° | 44° | 11 | 3.3 in | 7.1 h/day | 71% |
| November | 45° | 31° | 7 | 2.1 in | 6.1 h/day | 70% |
| December | 33° | 21° | 8 | 2.3 in | 4.6 h/day | 75% |