Google has updated their search results on Tablet PCs for weather related searches.
Users can now see an illustrative widget at the top related to weather related searches conducted on Tablet PCs with compatible web browsers.
When you type [weather] into Google on your tablet, you’ll see the current weather and you can scroll through the hourly and ten-day forecast. You can also toggle the Precipitation and Wind buttons to check out the percent chance of precipitation and wind direction/speed, respectively.
This feature has been available on smartphones for a while now.