Comparison of public weather forecasts for Adelaide

If I want what I consider the most accurate forecast for Adelaide, I'm going to refer to the Bureau of Meteorology forecast. There are a number of other weather sites on the Internet, so let's see how close their forecasts are to what I'll call the "official" one.

Note, temperature is measured in Celsius in Australia, so those are the units I'm displaying. Out of interest, 42°C is equivalent to 107.6°F which is equivalent to hot!

BoM Forecast

PRECIS FORECAST FOR ADELAIDE
Issued at 5:00 am on Monday, 31 January 2011

Monday               Max 42   Dry. Sunny.

Tuesday     Min 24   Max 33   Fine. Mostly sunny.
Wednesday   Min 20   Max 34   Fine. Mostly sunny.
Thursday    Min 22   Max 34   Fine. Mostly sunny.

wunderground.com

http://www.wunderground.com/global/stations/94672.html

Predicting 37°C

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weather.com

http://uk.weather.com/weather/today-Adelaide-ASXX0001?fromSearch=true

I went to the UK version of weather.com as that seemed to be the easiest way to get the temperatures in Celsius.

Forecast: 40°C

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accuweather.com

http://www.accuweather.com/en-us/au/south-australia/adelaide/quick-look.aspx

Forecast: 42°C

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theweathernetwork.com

http://www.theweathernetwork.com/weather/ausa0001

Forecast: 32°C

image

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weatherbug.com

http://weather.weatherbug.com/Australia/Adelaide-weather.html?zcode=z6286&lang_id=en-au

Forecast: 33°C

Looking at the screengrab, I can see why they're called weatherbug.

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So as you can see, most of these have absolutely no idea.. I can only presume they are throwing darts at a dart board with the numbers they come up with. Accuweather seemed to be the closest to the Bureau's figures.

And as it turned out, Monday did get to 42°C, so the BoM was on the money.

Written on February 2, 2011