How about putting a gadget with the weather forecast on your Blogger blog gadget? A gadget that I found really cool was the site Climatempo. Follow this link and choose one of available models: add a prediction of time of up to 5 cities, weather from the capitals, waves or regions of Brazil.
Select a skin (like a background) and click here. Fill in the blank fields and click view source. Copy and paste the code in the gadget HTML / javascript on your blog (design> page elements)
