This Geeklet gives you a weather forecast in a single short sentence. As with most of the weather scripts, this requires a US zip code. In the command you will need to replace 12345 with your zip code.
This service is provided by the Weather Underground web site.
Command:
curl -s http://www.wunderground.com/cgi-bin/findweather/getForecast?query=12345 | awk '/Today is/ || /Tomorrow is/' | textutil -convert txt -stdin -stdout -format html
Font: Lucida Grande
Colour: Orange
Size: 16
