Nearby Harbors
44.5600’ N, 87.9900’ W

Green Bay, WI

62°
H 68°
L 43°
WNW
10mph

Green Bay, WI Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Sun
Sep 13 		Partly Cloudy
Close Hourly 		68º / 43º 15% WNW 13 mph 46%
11am Partly Cloudy 62º 0% WNW 10 mph 52%
12pm Partly Cloudy 62º 1% WNW 11 mph 52%
1pm Partly Cloudy 64º 15% WNW 12 mph 48%
2pm Partly Cloudy 65º 15% WNW 14 mph 45%
3pm Partly Cloudy 67º 15% WNW 12 mph 42%
4pm Mostly Sunny 67º 15% WNW 12 mph 40%
5pm Mostly Sunny 67º 15% WNW 11 mph 39%
6pm Sunny 66º 0% NW 8 mph 40%
7pm Sunny 63º 0% NW 6 mph 47%
8pm Clear 58º 0% NW 4 mph 59%
9pm Clear 56º 1% NW 4 mph 63%
10pm Clear 54º 0% NNW 3 mph 68%
11pm Clear 53º 1% NNW 3 mph 72%
Mon
Sep 14 		Partly Cloudy
View Hourly 		71º / 59º 24% SSE 13 mph 57%
12am Clear 52º 2% NNW 2 mph 74%
1am Clear 50º 2% N 2 mph 78%
2am Clear 48º 3% NNW 1 mph 82%
3am Clear 47º 4% NW 1 mph 86%
4am Clear 45º 4% NNW 1 mph 88%
5am Clear 44º 5% NNW 1 mph 90%
6am Clear 44º 6% NNW 1 mph 90%
7am Sunny 45º 5% WSW 0 mph 91%
8am Sunny 50º 3% SE 0 mph 83%
9am Sunny 57º 1% ESE 1 mph 67%
10am Mostly Sunny 61º 0% SE 3 mph 55%
11am Sunny 64º 0% SE 5 mph 46%
12pm Sunny 66º 0% SSE 7 mph 42%
1pm Partly Cloudy 68º 3% SSE 9 mph 41%
2pm Mostly Cloudy 69º 21% SSE 10 mph 42%
3pm Mostly Cloudy 69º 21% SSE 11 mph 46%
4pm Cloudy 68º 21% SSE 13 mph 51%
5pm Cloudy 66º 22% SSE 13 mph 59%
6pm Showers 65º 37% SSE 13 mph 66%
7pm Showers 62º 39% SSE 12 mph 76%
8pm Showers 60º 59% SSE 12 mph 82%
9pm Rain 60º 61% SSE 11 mph 82%
10pm Showers 60º 55% SSE 13 mph 84%
11pm Showers 61º 52% SSE 14 mph 83%
Tue
Sep 15 		Cloudy
View Hourly 		75º / 50º 24% WSW 14 mph 74%
12am Thunderstorms 61º 77% S 15 mph 84%
1am Thunderstorms 61º 86% S 13 mph 85%
2am Thunderstorms 61º 86% S 13 mph 88%
3am Thunderstorms 61º 78% S 13 mph 90%
4am Rain 61º 69% S 14 mph 91%
5am Light Rain 61º 60% SSW 13 mph 95%
6am Few Showers 62º 31% SSW 13 mph 96%
7am Cloudy 64º 24% SW 12 mph 96%
8am Cloudy 66º 14% SW 12 mph 96%
9am Cloudy 68º 15% SW 12 mph 92%
10am Cloudy 69º 12% WSW 13 mph 88%
Wed
Sep 16 		Cloudy 70º / 56º 17% ENE 6 mph 72%
Thu
Sep 17 		Partly Cloudy 72º / 55º 24% NE 6 mph 74%
Fri
Sep 18 		PM Showers 72º / 59º 34% ESE 6 mph 72%
Sat
Sep 19 		Rain 70º / 56º 70% E 9 mph 80%
Sun
Sep 20 		AM Showers 66º / 56º 42% NE 10 mph 81%

Weather Radar for Green Bay, WI See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Green Bay, WI

Today
High : 67ºF
WNW wind 6 to 14 kt, with gusts as high as 20 kt. Mostly cloudy through mid morning, then gradual clearing. Waves 1 ft or less.
Tonight
Low : 43ºF
Variable winds 5 kt or less. Clear. Waves 1 ft or less.
Monday
High : 69ºF
Variable winds less than 5 kt becoming SSE 9 to 14 kt in the afternoon. A chance of showers, mainly after 4pm. Waves 1 ft or less.
Monday Night
Low : 64ºF
SSE wind 16 to 22 kt, with gusts as high as 29 kt. Showers and possibly a thunderstorm. Waves 1 ft or less.
Tuesday
High : 73ºF
SW wind 12 to 17 kt becoming W in the afternoon. Winds could gust as high as 24 kt. Mostly cloudy. Waves 1 ft or less.
Tuesday Night
Low : 57ºF
W wind around 6 kt becoming N after midnight. Mostly cloudy. Waves 1 ft or less.
Wednesday
High : 67ºF
N wind around 6 kt becoming E in the afternoon. Partly sunny. Waves 1 ft or less.
Wednesday Night
Low : 61ºF
Variable winds less than 5 kt becoming ENE around 6 kt after midnight. A chance of showers. Waves 1 ft or less.
Thursday
High : 70ºF
NE wind around 7 kt. A chance of showers. Waves 1 ft or less.

NOAA Buoy Data Near Green Bay, WI See Map

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    Wind Speed Forecast for Green Bay, WI

    SundayMondayTuesday
    Wind Speed (MPH) 1012631051112141312
    4pm8pm12am4am8am12pm4pm8pm12am4am8am12pm
    MPH 1012631051112141312
    DIR WNWWNWNWNNWNWWSWSESSESSESSESSW

    Current Weather Conditions In Green Bay, WI

    As Of: 12 minutes ago

    • 62ºF
    • 61ºF
    • 10mph
    • 0º (WNW)
    • 10mph
    • Partly Cloudy
    • 10mi
    • 30.06"
    • 52%
    • 0ºF

    The weather right now in Green Bay, WI is Partly Cloudy. The current temperature is 62°F, and the expected high and low for today, Sunday, September 13, 2026, are 68° high temperature and 43°F low temperature. The wind is currently blowing at 10 miles per hour, and coming from the West Northwest. The wind is gusting to 10 mph. With the wind and the atmosphere the temperature feels like 61° Fahrenheit. Expected precipitation is 0 percent, with current humidity at 52 percent, and air pressure at 30.06 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).

    General Weather Conditions in Green Bay, WI

    Green Bay Wisconsin is located in the eastern portion of the state at the head or southwest end of Green Bay. The Bay is oriented northeast-southwest and is separated from Lake Michigan to the southeast by the Door Peninsula. The location averages about seven days each year with maximum temperatures in excess of 90°F (32.2°C). July is the warmest month with an average high of 81°F (27.2°C) and an average minimum of 59°F (15°C). January is the coolest month with an average high of 23°F (-5°C) and an average minimum of 7°F (-13.9°C). The highest temperature on record for Green Bay is 103°F (39.4°C), recorded in July 1995, and the lowest temperature on record is -31°F (-35°C), recorded in January 1951. About 163 days each year experience temperatures below 32°F (0°C), and an average 38 days each year record temperatures below 5°F (-15°C). Every month has seen temperatures at or below 40°F (4.4°C), and every month except July and August has recorded temperatures at or below freezing (0°C).

    The average annual precipitation for Green Bay is 28.49 inches (724 mm). An annual maximum occurs during the summer, due mainly to convective activity, and a marked dry period occurs during the winter months. Precipitation falls on about 189 days each year. The wettest month is July with 3.45 inches (88 mm) and the driest, February, averages only 1.02 inches (25.9 mm). An average of 33 thunderstorm days occur each year with June, July and August being the most likely months. Snow falls on about 80 days each year and averages about 47 inches (1194 mm) each year. December and January each average about 11 inches (279 mm) per year. Ten-inch (254 mm) snowfalls in a 24-hour period have occurred in each month November, December, March and April. About ten days each year has a snowfall total greater than 1.5 inches (38 mm) and snow have fallen in every month except June, July and August. Fog is present on average 129 days each year and is rather evenly distributed throughout the year with a slight maximum during the late summer season.

    The prevailing wind direction in Green Bay is the southwest. Winter through early spring is the windiest period and a maximum gust of 70 knots occurred in May 1989.

    Weather Alerts
    Small Craft Advisory - 4:31am Sun Sep 13 2026

    ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM CDT THIS EVENING...

    WHAT: Northwest winds 10 to 15 kt with gusts up to 25 kt and
    waves 1 to 3 ft expected.

    WHERE: Lake Michigan nearshore waters from Washington Island
    to Two Rivers, and Central and Southern Bay of Green Bay.

    WHEN: From 1 PM this afternoon to 7 PM CDT this evening.

    IMPACTS: Conditions will be hazardous to small craft.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Inexperienced mariners, especially those operating smaller
    vessels, should avoid navigating in hazardous conditions.

    &&

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