Green Bay, WI Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Green Bay, WI in one place.
A slight chance of rain showers after 7am. Partly sunny, with a high near 80. Heat index values as high as 79. Southwest wind 5 to 9 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Green Bay, WI is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 27, 2026 8:49 PM CDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Green Bay, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 27, 2026 8:49 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Green Bay
Monday looks like the warmest upcoming period in Green Bay at 87 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Saturday at about 5 to 9 mph SW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 8:49 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- GRB
- Radar station
- KGRB
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers. Mostly cloudy, with a low around 67. South wind around 8 mph. Chance of precipitation is 50%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 84. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 87. Chance of precipitation is 30%.
A chance of rain showers after 7pm. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
A chance of rain showers before 1pm. Partly sunny, with a high near 86. Chance of precipitation is 30%.
A chance of rain showers after 7pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Slight Chance Rain Showers
|
80°F |
5 to 9 mph
SW
|
|
Saturday Night
Aug 29
|
Chance Rain Showers
|
67°F |
8 mph
S
|
|
Sunday
Aug 30
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
84°F |
6 to 9 mph
S
|
|
Sunday Night
Aug 30
|
Chance Showers And Thunderstorms
|
70°F |
3 to 7 mph
S
|
|
Monday
Aug 31
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
87°F |
8 mph
SW
|
|
Monday Night
Aug 31
|
Chance Rain Showers
|
69°F |
2 to 7 mph
WSW
|
|
Tuesday
Sep 1
|
Chance Rain Showers
|
86°F |
2 to 6 mph
W
|
|
Tuesday Night
Sep 1
|
Chance Rain Showers
|
67°F |
1 to 5 mph
SW
|
|
Wednesday
Sep 2
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
84°F |
1 to 5 mph
WNW
|
|
Wednesday Night
Sep 2
|
Slight Chance Showers And Thunderstorms
|
66°F |
3 mph
SE
|
|
Thursday
Sep 3
|
Slight Chance Showers And Thunderstorms
|
82°F |
2 to 6 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Green Bay.
