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Mililani Town weather

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Mililani Town weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Mililani Town weather in numbers

measured normals and 10 years of recorded weather

Mililani Town swings 23°F across the year, from 85°F highs in August to 62°F lows in January, and December is usually the wettest month in a year that brings about 43 in of precipitation. Over 10 years of recorded weather it averages 317 days a year at 77°F or above, 42 of them at 86°F or above, 0 frost nights, and rain on 113 days.

Warmest month
August
85°F average high
Coldest month
January
62°F average low
Wettest month
December
43 in a year
Comfortable
4 months
January, February, March and April
Residents
28,000
share this forecast
Most accurate here
European
67/100 CheckWeather Score
Warm days
317 days
a year at 77°F or above
Frost nights
0 nights
a year below 32°F
Rain days
113 days
a year with 0.04 in or more

Day counts are from the ERA5 reanalysis for Mililani Town’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 Mililani Town and nearby towns.Live rain radar →
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Mililani Town 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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Mililani Town 10-day forecast, out to 14 days

where the models agree, and where they split

Mililani Town, Hawaii (HI) is at its warmest in Aug (average highs near 85°F) and coldest in Jan (lows around 62°F), with roughly 43 in of precipitation across the year. Below, compare what NWS, American, European forecast for Mililani Town 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.

Mililani Town climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
76°
62°
Feb
76°
64°
Mar
77°
64°
Apr
78°
65°
May
79°
66°
Jun
82°
68°
Jul
84°
69°
Aug
85°
69°
Sep
85°
69°
Oct
84°
68°
Nov
81°
66°
Dec
78°
63°

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

How the weather around Mililani Town has changed since 1995

Mililani Town 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 Mililani Town?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
67
/100rank #1
77±2.3°F96±1.4 mph3665% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
67
/100rank #2
72±2.8°F94±1.9 mph4268% 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.

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.

Common questions

What's the weather in Mililani Town today?
On this page we show what NWS, American, European each forecast for Mililani Town 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 Mililani Town today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Mililani Town 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 Mililani Town?
Over the last 30 days, the European model has been the most accurate for Mililani Town (CheckWeather Score 67/100), 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 Mililani Town?
August is typically the warmest month in Mililani Town, with average highs around 85°F.
How cold does Mililani Town get?
The coldest month in Mililani Town is January, when overnight lows average about 62°F.
How much rain does Mililani Town get?
Mililani Town sees roughly 43 in of precipitation a year, with December usually the wettest month.

Nearby

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