Green Bay, WI Weather & Growing Conditions
Today
64°F
Rain Showers Likely
Rain showers likely and patchy fog. Mostly cloudy. High near 64, with temperatures falling to around 57 in the afternoon. South wind around 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 64°F | Rain Showers Likely | 13 mph S | 55% |
| Tonight | 45°F | Chance Rain Showers | 12 mph SW | 47% |
| Thursday | 53°F | Rain Showers Likely | 8 to 15 mph WNW | 64% |
| Thursday Night | 34°F | Chance Rain Showers | 16 mph N | 36% |
| Friday | 46°F | Chance Rain Showers | 8 to 15 mph N | 28% |
| Friday Night | 30°F | Partly Cloudy | 3 to 7 mph N | 0% |
| Saturday | 48°F | Sunny | 6 mph WNW | 0% |
| Saturday Night | 32°F | Mostly Clear | 3 to 7 mph W | 5% |
| Sunday | 54°F | Sunny | 8 to 12 mph W | 8% |
| Sunday Night | 33°F | Mostly Clear | 7 mph W | 0% |
| Monday | 56°F | Mostly Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 37°F | Partly Cloudy | 6 to 9 mph W | 2% |
| Tuesday | 56°F | Mostly Sunny | 6 to 9 mph WNW | 8% |
| Tuesday Night | 35°F | Partly Cloudy | 5 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Green Bay, WI
Last spring frost
May 6
First fall frost
Oct 12
Growing season
158 days
Hardiness zone
5b
Explore more for Green Bay, WI: full frost dates · planting calendar · Wisconsin frost dates
Climate data from the nearest NOAA station, Denmark Wwtp, Wi (9.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.