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CheckWeather US›Hawaii›Joint Base Pearl Harbor Hickam
Forecast confidence: High · models disagree by 1°F

Joint Base Pearl Harbor Hickam weather

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Cloudy,rain likely tomorrow

NWS, the American and the European model agree on a high near 85° in Joint Base Pearl Harbor Hickam today. Tomorrow: light drizzle, around 83°, with a 42% chance of rain.

85°70°
83°70°
85°67°
77°68°
79°73°
79°74°
Todaymodels agreeTomorrowmodels agreeMondaymodels agreeTuesdaysplit ±6°Wednesdaysplit ±7°Thursdaymodels agree
AmericanNOAA GFS
85°
Cloudy
Today 85°·Low 72°·Rain 34%
EuropeanECMWF
84°
Light drizzle
Today 84°·Low 68°·Rain 47%
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Joint Base Pearl Harbor Hickam weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Joint Base Pearl Harbor Hickam weather in numbers

measured normals and 10 years of recorded weather

Joint Base Pearl Harbor Hickam swings 20°F across the year, from 86°F highs in September to 66°F lows in January, and December is usually the wettest month in a year that brings about 32 in of precipitation. Over 10 years of recorded weather it averages 331 days a year at 77°F or above, 43 of them at 86°F or above, 0 frost nights, and rain on 102 days.

Warmest month
September
86°F average high
Coldest month
January
66°F average low
Wettest month
December
32 in a year
Comfortable
3 months
January, February and March
Residents
42,000
share this forecast
Most accurate here
American
76/100 CheckWeather Score
Warm days
331 days
a year at 77°F or above
Frost nights
0 nights
a year below 32°F
Rain days
102 days
a year with 0.04 in or more

Day counts are from the ERA5 reanalysis for Joint Base Pearl Harbor Hickam’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.

The weather map: all three models at once

NWS, American, European side by side around Joint Base Pearl Harbor Hickam and nearby towns.Live rain radar →
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Joint Base Pearl Harbor Hickam hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Joint Base Pearl Harbor Hickam 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Cloudy
85° 70°
models agree
Tomorrow
Light drizzle
83° 70°
models agree
Mon
Light drizzle
85° 67°
models agree
Tue
Showers
77° 68°
±6°
Wed
Showers
79° 73°
±7°
Thu
Light drizzle
79° 74°
models agree
Fri
Heavy drizzle
80° 73°
models agree
Sat
Light drizzle
82° 73°
models agree
Sun
Light drizzle
81° 72°
models agree
Mon
Light drizzle
81° 72°
±6°
Tue
Cloudy
78° 72°
models agree
Wed
Light drizzle
79° 72°
models agree
Thu
Heavy drizzle
81° 71°
models agree

Joint Base Pearl Harbor Hickam, Hawaii (HI) is at its warmest in Sep (average highs near 86°F) and coldest in Jan (lows around 66°F), with roughly 32 in of precipitation across the year. Below, compare what NWS, American, European forecast for Joint Base Pearl Harbor Hickam 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.

Joint Base Pearl Harbor Hickam climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
77°
66°
Feb
77°
68°
Mar
78°
68°
Apr
79°
69°
May
80°
70°
Jun
82°
72°
Jul
84°
73°
Aug
85°
74°
Sep
86°
74°
Oct
85°
72°
Nov
82°
71°
Dec
79°
67°

Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.

How the weather around Joint Base Pearl Harbor Hickam has changed since 1995

Joint Base Pearl Harbor Hickam sits in the same roughly 50 km square of NASA's reanalysis as Honolulu. That square ran 1.0°F warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Honolulu page.

Which forecast is most accurate in Joint Base Pearl Harbor Hickam?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
American logo
American ★ Best
76
/100rank #1
86±1.4°F87±4.1 mph5877% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
65
/100rank #2
80±2.0°F93±2.3 mph2961% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom

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.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
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AmericanNOAA GFS
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EuropeanECMWF
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±1°84° to 85°±13%34% to 47% chance
Tomorrow±1°83° to 83°±1%41% to 42% chance
Monmodels agree85° to 85°±9%26% to 35% chance
Tue±6°74° to 80°±24%63% to 87% chance
Wed±7°76° to 83°±16%74% to 90% 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 Joint Base Pearl Harbor Hickam

today, local time
Sunrise
06:31
Sunset
18:00
Daylight
11h 29m

Common questions

What's the weather in Joint Base Pearl Harbor Hickam today?
Saturday, October 24: NWS, the American and the European model agree on a high near 85° in Joint Base Pearl Harbor Hickam today. Tomorrow: light drizzle, around 83°, with a 42% chance of rain. The forecast on this page refreshes live.
Will it rain in Joint Base Pearl Harbor Hickam today or tomorrow?
The models split on rain in Joint Base Pearl Harbor Hickam on Sunday, October 25: American 41%, European 42%. When they disagree like this, treat any single app's answer with caution. On Saturday, October 24 the highest chance of rain from any model is 47%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for Joint Base Pearl Harbor Hickam?
Over the last 30 days, the American model has been the most accurate for Joint Base Pearl Harbor Hickam (CheckWeather Score 76/100), ahead of the European at 65. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Joint Base Pearl Harbor Hickam?
September is typically the warmest month in Joint Base Pearl Harbor Hickam, with average highs around 86°F.
How cold does Joint Base Pearl Harbor Hickam get?
The coldest month in Joint Base Pearl Harbor Hickam is January, when overnight lows average about 66°F.
How much rain does Joint Base Pearl Harbor Hickam get?
Joint Base Pearl Harbor Hickam sees roughly 32 in of precipitation a year, with December usually the wettest month.

Nearby

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