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Forecast confidence: High · models disagree by 2°C

Thornlie weather

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Light drizzle,much the same tomorrow

European, the American and the German model agree on a high near 17° in Thornlie today. Tomorrow: cloudy, around 19°, with a 29% chance of rain.

17°8°
19°7°
21°9°
26°12°
28°14°
29°15°
Todaymodels agreeTomorrowmodels agreeMondaysplit ±4°Tuesdaymodels agreeWednesdaymodels agreeThursdaysplit ±5°
EuropeanECMWF
12°
Clear
Feels 8° · Wind 13 km/h · Humidity 57%
AmericanNOAA GFS
12°
Clear
Feels 7° · Wind 18 km/h · Humidity 43%
GermanDWD ICON
13°
Clear
Feels 10° · Wind 11 km/h · Humidity 53%

Latest for Thornlie: European (ECMWF): 12° Clear · American (NOAA GFS): 12° Clear · German (DWD ICON): 13° Clear.

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Thornlie weather in numbers

from 30 years of measured normals

Thornlie swings 23°C across the year, from 32°C highs in January to 9°C lows in July, and June is usually the wettest month in a year that brings about 777 mm of precipitation.

Warmest month
January
32°C average high
Coldest month
July
9°C average low
Wettest month
June
777 mm a year
Below freezing
Never
overnight lows stay above 0°C
Comfortable
4 months
April, May, July and August
Residents
24,000
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The weather map: all three models at once

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

where the models agree, and where they split
Today
Light drizzle
17° 8°
models agree
Tomorrow
Cloudy
19° 7°
models agree
Mon
Drizzle
21° 9°
±4°
Tue
Partly cloudy
26° 12°
models agree
Wed
Clear
28° 14°
models agree
Thu
Mostly clear
29° 15°
±5°
Fri
Mostly clear
25° 14°
±4°
Sat
Light drizzle
26° 14°
±5°
Sun
Drizzle
22° 15°
±3°
Mon
Light drizzle
22° 14°
±3°
Tue
Light drizzle
22° 13°
models agree
Wed
Light drizzle
23° 14°
models agree
Thu
Light drizzle
23° 13°
models agree
Fri
Cloudy
24° 12°
models agree

Thornlie, Western Australia is at its warmest in Jan (average highs near 32°C) and coldest in Jul (lows around 9°C), with roughly 777 mm of precipitation across the year. Below, compare what European, American, German forecast for Thornlie 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.

Thornlie climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
32°
17°
Feb
32°
17°
Mar
29°
16°
Apr
25°
14°
May
21°
12°
Jun
17°
10°
Jul
16°
9°
Aug
17°
9°
Sep
19°
9°
Oct
23°
11°
Nov
26°
13°
Dec
30°
16°

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

How the weather around Thornlie has changed since 1995

Thornlie sits in the same roughly 50 km square of NASA's reanalysis as Ellenbrook. That square shows no clear change in temperature between 1995-2004 and 2015-2024. See the full 30-year picture on the Ellenbrook page.

Which forecast is most accurate in Thornlie?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
92
/100rank #1
90±0.5°C98±0.8 km/h8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
86
/100rank #2
85±0.9°C92±4.2 km/h8290% hitNOAA / NCEP (United States)College Park, Maryland, USA
G
German
79
/100rank #3
81±1.0°C96±1.9 km/h6581% 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 1558 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°16° to 18°±57%25% to 82% chance
Tomorrow±1°19° to 19°±26%3% to 29% chance
Mon±4°19° to 23°±71%9% to 80% chance
Tue±1°25° to 27°±4%0% to 4% chance
Wed±1°27° to 28°±24%4% to 28% 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 Thornlie

today, local time
Sunrise
05:26
Sunset
18:34
Daylight
13h 8m

Common questions

What's the weather in Thornlie today?
Saturday 24 October: European, the American and the German model agree on a high near 17° in Thornlie today. Tomorrow: cloudy, around 19°, with a 29% chance of rain. The forecast on this page refreshes live.
Will it rain in Thornlie today or tomorrow?
The models split on rain in Thornlie on Sunday 25 October: European 29%, American 3%, German 5%. When they disagree like this, treat any single app's answer with caution. On Saturday 24 October the highest chance of rain from any model is 82%. The hourly strip and the model-by-model rain panel above update live.
Which forecast is most accurate for Thornlie?
Over the last 30 days, the European model has been the most accurate for Thornlie (CheckWeather Score 92/100), ahead of the American at 86. We grade every model against the recorded weather. See the AU accuracy scoreboard for the full method.
What is the warmest month in Thornlie?
January is typically the warmest month in Thornlie, with average highs around 32°C.
How cold does Thornlie get?
The coldest month in Thornlie is July, when overnight lows average about 9°C.
How much rain does Thornlie get?
Thornlie sees roughly 777 mm of precipitation a year, with June usually the wettest month.

Nearby

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