For More Weather Information:

21NM E Green Bay WI

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 8:37 am CDT Sep 18, 2026
Forecast Valid: 8am CDT Sep 18, 2026-6pm CDT Sep 24, 2026

Today

ENE wind 7 to 9 kt. Showers likely, mainly after 5pm. Waves 1 ft or less.

Tonight

ENE wind 7 to 9 kt becoming ESE after midnight. Showers, with thunderstorms also possible after 4am. Waves 1 ft or less.

Saturday

SE wind 10 to 12 kt becoming E in the afternoon. Showers likely and possibly a thunderstorm. Waves 1 ft or less.

Saturday Night

NE wind 6 to 8 kt. A chance of showers, mainly before 1am. Waves 1 ft or less.

Sunday

NE wind 9 to 15 kt. Partly sunny. Waves 1 ft or less.

Sunday Night

NE wind 10 to 14 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 ft or less.

Monday

ENE wind 12 to 15 kt. Mostly cloudy. Waves 1 ft or less.

Monday Night

ENE wind 11 to 15 kt. Mostly cloudy. Waves 1 ft or less.

Tuesday

ENE wind 12 to 16 kt. Partly sunny. Waves 1 ft or less.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.