Test the weather forecast

Your weather lab starts here

Measuring what's going on in the air is the best way to predict what the weather's going to do next. Forecasters gather these measurements all the time, and use them to make their weather forecasts. You can do the same with our guide to using simple instruments.

You can easily make your own simple gadgets to collect information about wind speed, rainfall, humidity, pressure and much more. But you'll only get good data for forecasters if you take measurements that are valid. Don't worry, we'll show you how.

For advice on building loads of instruments and using them, see the Royal Meteorological Society's web site.

Here is Weather Lab's pick of some easy measuring gadgets to make

To measure wind speed or strength

To measure rainfall

Measure air pressure

To maesure air pressure, you need a barometer. There a lots of different types of barometer to make:


For a basic introduction to weather which covers all the data that might be measured, see the BBC Schools What is Weather website.

Watch out - your data must be good!

Gadgets and experiments do not always give valid results. Errors in measuring weather conditions might be caused by local winds and draughts, shade, inaccurate readings, broken devices and much more. Get it wrong and no-one will trust your weather forecast again! So you need to be sure that your weather readings are as good as you can make them. Go to Are my measurements right? to find out how to get the most accurate readings.

Weather Data Experiment

weather Schools across the UK can report local weather to help improve forecast
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