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CheckWeather USGrand Island
Forecast confidence: High · models disagree by 4°F

Grand Island weather

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Showers,rain likely tomorrow

NWS, the American and the European model agree on a high near 91° in Grand Island today. Tomorrow looks showers around 91°, with a 73% chance of rain.

91°71°
91°72°
95°73°
90°72°
85°67°
87°60°
Todaymodels agreeTomorrowsplit ±5°Mondaysplit ±6°Tuesdaysplit ±11°Wednesdaysplit ±15°Thursdaysplit ±15°
NWSNational Blend (NBM)
94°
Showers
Today 94°·Low 71°·Rain 5%
AmericanNOAA GFS
91°
Cloudy
Today 91°·Low 71°·Rain 5%
EuropeanECMWF
90°
Light drizzle
Today 90°·Low 73°·Rain 39%

The weather map: all three models at once

NWS, American, European side by side around Grand Island 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
Showers
91° 71°
models agree
Tomorrow
Showers
91° 72°
±5°
Mon
Cloudy
95° 73°
±6°
Tue
Light drizzle
90° 72°
±11°
Wed
Light drizzle
85° 67°
±15°
Thu
Light drizzle
87° 60°
±15°
Fri
Mostly clear
92° 68°
±16°
Sat
Light drizzle
85° 64°
±14°
Sun
Light drizzle
69° 57°
±10°
Mon
Light drizzle
71° 53°
±6°
Tue
Mostly clear
77° 54°
models agree
Wed
Clear
83° 56°
models agree
Thu
Cloudy
83° 60°
models agree
Fri
Drizzle
82° 62°
±9°

Grand Island, NE is at its warmest in Aug (average highs near 85°F) and coldest in Jan (lows around 16°F), with roughly 27 in of precipitation across the year. Below, compare what NWS, American, European forecast for Grand Island 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.

Grand Island climate by month

average daytime high and overnight low across a typical year
Jan
30°
16°
Feb
47°
24°
Mar
51°
29°
Apr
64°
41°
May
75°
54°
Jun
83°
64°
Jul
84°
65°
Aug
85°
66°
Sep
82°
61°
Oct
67°
47°
Nov
52°
34°
Dec
41°
25°

Which forecast is most accurate in Grand Island?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
87
/100rank #1
91±0.9°F96±1.2 mph7687% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
67
/100rank #2
79±2.1°F92±2.6 mph3665% 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±4°90° to 94°±34%5% to 39% chance
Tomorrow±5°89° to 93°±50%23% to 73% chance
Mon±6°93° to 99°±1%9% to 10% chance
Tue±11°86° to 96°±10%45% to 55% chance
Wed±15°80° to 94°±28%17% to 45% 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 Grand Island

today, local time
Sunrise
07:04
Sunset
19:59
Daylight
12h 55m

Common questions

What's the weather in Grand Island today?
On this page we show what NWS, American, European each forecast for Grand Island 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 Grand Island today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Grand Island 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 Grand Island?
Over the last 30 days, the European model has been the most accurate for Grand Island (CheckWeather Score 87/100), ahead of the American at 67. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Grand Island?
August is typically the warmest month in Grand Island, with average highs around 85°F.
How cold does Grand Island get?
The coldest month in Grand Island is January, when overnight lows average about 16°F.
How much rain does Grand Island get?
Grand Island sees roughly 27 in of precipitation a year, with May usually the wettest month.

Nearby

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