Weather Underground's conditions and forecast data comes fast, simple and without a lot of gimmick-y offers. A Chrome extension built around the service offers WUnderground's data in a toolbar button icon, mouse-over details and a mini-page when clicked.
Compared to a fair number of other weather alert apps and browser extensions, Weather Underground for Chrome — which appears unofficially, if lovingly, coded — feels the least annoying and the most helpful. The temperature in degrees and a basic conditions icon is always a glance away, while a more detailed explainer can be had by simply stopping your mouse cursor on the button. Click it, though, and you get just enough data on what's happening in the world outside your window, along with a four-day forecast and links to more detailed stats.
Weather Underground is a free download that generally works wherever Google Chrome does. For a larger take on your region's weather in your browser, check out the giant, no-frills Full Screen Weather. Got your own favourite weather updated for Chrome? Tell us about it in the comments.