Green Island is an island in Green Bay and part of the Town of Peshtigo, in Marinette County, Wisconsin. The Green Island Light is on the island.

Green Island Climate chart (explanation) J F M A M J J A S O N D     59     −10 −15     44     −7 −15     59     0 −8     81     14 −1     82     19 6     101     22 12     103     24 15     88     23 16     112     20 10     113     11 1     89     2 −2     59     −7 −10 █ Average max. and min. temperatures in °C █ Precipitation totals in mm Source: Imperial conversion J F M A M J J A S O N D     2.3     14 5     1.7     19 5     2.3     32 18     3.2     57 30     3.2     66 43     4     72 54     4.1     75 59     3.5     73 61     4.4     68 50     4.4     52 34     3.5     36 28     2.3     19 14 █ Average max. and min. temperatures in °F █ Precipitation totals in inches