Thanks to the very clever people at the State Agency for Meteorology, I can now show you - live - the next three days weather forecasts for Bigastro in the sidebar of this blog.
The lines on the chart show the information you need.
The first line uses symbols to show the general conditions.
Then the minimum/maximum temperatures
The next line shows the probability of rain.
Following this we have minimum/maximum relative humidity
The arrows show the wind direction
Finally we have the wind speed in kilometres per hour.