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CheckWeather AUHornsby
Forecast confidence: Medium · models disagree by 2°C

Hornsby weather

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Cloudy,much the same tomorrow

European, the American and the German model put Hornsby's high today between 28° and 30°, a 2° split. Tomorrow looks clear around 32°, with a 0% chance of rain.

29°10°
32°13°
30°14°
15°13°
18°14°
22°13°
Todaysplit ±2°Tomorrowsplit ±3°Mondaysplit ±4°Tuesdaysplit ±3°Wednesdaysplit ±8°Thursdaymodels agree
EuropeanECMWF
28°
Partly cloudy
Today 28°·Low 10°·Rain 0%
AmericanNOAA GFS
30°
Cloudy
Today 30°·Low ·Rain 0%
GermanDWD ICON
29°
Cloudy
Today 29°·Low 11°·Rain 0%
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Hornsby weather in numbers

from 30 years of measured normals

Hornsby swings 21°C across the year, from 29°C highs in December to 8°C lows in June, and November is usually the wettest month in a year that brings about 871 mm of precipitation.

Warmest month
December
29°C average high
Coldest month
June
8°C average low
Wettest month
November
871 mm a year
Below freezing
Never
overnight lows stay above 0°C
Comfortable
4 months
April, May, June and July
Residents
22,000
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The weather map: all three models at once

European, American, German side by side around Hornsby and nearby towns.Live rain radar →
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Hornsby 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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Hornsby 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Cloudy
29° 10°
±2°
Tomorrow
Clear
32° 13°
±3°
Mon
Light drizzle
30° 14°
±4°
Tue
Light drizzle
15° 13°
±3°
Wed
Light drizzle
18° 14°
±8°
Thu
Cloudy
22° 13°
models agree
Fri
Cloudy
28° 12°
±5°
Sat
Partly cloudy
29° 15°
models agree
Sun
Light drizzle
21° 14°
±6°
Mon
Cloudy
24° 14°
±7°
Tue
Mostly clear
28° 13°
±3°
Wed
Light drizzle
23° 16°
±3°
Thu
Light drizzle
25° 16°
±4°
Fri
Light drizzle
24° 16°
±4°

Hornsby, New South Wales is at its warmest in Dec (average highs near 29°C) and coldest in Jun (lows around 8°C), with roughly 871 mm of precipitation across the year. Below, compare what European, American, German forecast for Hornsby 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 Australia before you trust any single number.

Hornsby climate by month

average daytime high and overnight low across a typical year
Jan
27°
18°
Feb
28°
18°
Mar
27°
17°
Apr
22°
13°
May
19°
Jun
16°
Jul
17°
Aug
19°
Sep
23°
11°
Oct
24°
12°
Nov
25°
16°
Dec
29°
18°

Which forecast is most accurate in Hornsby?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
86
/100rank #1
88±0.7°C96±1.8 km/t7687% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
81
/100rank #2
84±0.9°C97±1.7 km/t6581% hitNOAA / NCEP (United States)College Park, Maryland, USA
G
German
77
/100rank #3
81±1.1°C97±1.5 km/t5877% hitDeutscher Wetterdienst (DWD)Offenbach am Main, Germany

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1495 cities. Lower error means a higher score. See which forecast model is most accurate in Australia, 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 Australia? Give each 1 to 5 stars.

EuropeanECMWF
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AmericanNOAA GFS
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GermanDWD ICON
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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±2°28° to 30°models agree0% to 0% chance
Tomorrow±3°31° to 34°models agree0% to 0% chance
Mon±4°27° to 31°±40%3% to 43% chance
Tue±3°14° to 16°±56%5% to 61% chance
Wed±8°14° to 22°±53%15% to 68% 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 Hornsby

today, local time
Sunrise
05:50
Sunset
17:50
Daylight
12h 0m

Common questions

What's the weather in Hornsby today?
On this page we show what European, American, German each forecast for Hornsby 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 Hornsby today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from European, American, German for Hornsby 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 Hornsby?
Over the last 30 days, the European model has been the most accurate for Hornsby (CheckWeather Score 86/100), ahead of the American at 81. We grade every model against the recorded weather. See the AU accuracy scoreboard for the full method.
What is the warmest month in Hornsby?
December is typically the warmest month in Hornsby, with average highs around 29°C.
How cold does Hornsby get?
The coldest month in Hornsby is June, when overnight lows average about 8°C.
How much rain does Hornsby get?
Hornsby sees roughly 871 mm of precipitation a year, with November usually the wettest month.

Nearby

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