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CheckWeather USGreen Bay
Forecast confidence: High · models disagree by 2°F

Green Bay weather

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Light drizzle,much the same tomorrow

NWS, the American and the European model agree on a high near 74° in Green Bay today. Tomorrow looks mostly clear around 77°, with a 1% chance of rain.

74°65°
77°62°
78°59°
75°64°
79°67°
75°59°
Todaymodels agreeTomorrowmodels agreeMondaymodels agreeTuesdaymodels agreeWednesdaysplit ±5°Thursdaysplit ±7°
NWSNational Blend (NBM)
73°
Light drizzle
Today 73°·Low 65°·Rain 15%
AmericanNOAA GFS
73°
Cloudy
Today 73°·Low 66°·Rain 15%
EuropeanECMWF
75°
Light drizzle
Today 75°·Low 66°·Rain 25%

The weather map: all three models at once

NWS, American, European side by side around Green Bay and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Light drizzle
74° 65°
models agree
Tomorrow
Mostly clear
77° 62°
models agree
Mon
Cloudy
78° 59°
models agree
Tue
Light drizzle
75° 64°
models agree
Wed
Drizzle
79° 67°
±5°
Thu
Mostly clear
75° 59°
±7°
Fri
Mostly clear
81° 59°
±13°
Sat
Light drizzle
80° 63°
±9°
Sun
Light rain
68° 59°
±12°
Mon
Drizzle
65° 55°
±11°
Tue
Drizzle
67° 53°
±9°
Wed
Mostly clear
70° 49°
models agree
Thu
Cloudy
72° 52°
models agree
Fri
Cloudy
73° 54°
models agree

Green Bay, WI is at its warmest in Jul (average highs near 81°F) and coldest in Jan (lows around 19°F), with roughly 33 in of precipitation across the year. Below, compare what NWS, American, European forecast for Green Bay right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

Green Bay climate by month

average daytime high and overnight low across a typical year
Jan
30°
19°
Feb
38°
20°
Mar
42°
25°
Apr
56°
37°
May
69°
48°
Jun
78°
59°
Jul
81°
62°
Aug
79°
62°
Sep
76°
57°
Oct
62°
46°
Nov
46°
33°
Dec
36°
25°

Which forecast is most accurate in Green Bay?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
91
/100rank #1
90±1.0°F97±0.9 mph8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
77
/100rank #2
78±2.2°F91±2.8 mph6581% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±2°73° to 75°±10%15% to 25% chance
Tomorrow±1°76° to 77°±1%0% to 1% chance
Mon±2°77° to 79°±6%0% to 6% chance
Tue±3°74° to 77°±11%52% to 63% chance
Wed±5°77° to 81°±28%54% to 82% chance

The models often agree on temperature and still split on rain — and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Green Bay

today, local time
Sunrise
06:19
Sunset
19:21
Daylight
13h 2m

Common questions

What's the weather in Green Bay today?
On this page we show what NWS, American, European each forecast for Green Bay today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Green Bay today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Green Bay and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Green Bay?
Over the last 30 days, the European model has been the most accurate for Green Bay (CheckWeather Score 91/100), ahead of the American at 77. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Green Bay?
July is typically the warmest month in Green Bay, with average highs around 81°F.
How cold does Green Bay get?
The coldest month in Green Bay is January, when overnight lows average about 19°F.
How much rain does Green Bay get?
Green Bay sees roughly 33 in of precipitation a year, with June usually the wettest month.

Nearby

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