Webcam Salty Dog Cafe. Links to weather and other interesting things. Your choice of 4 beach cams near Charleston. Has nice links to weather and forecasts. Webcam Gives access to cameras in Badlands, Souix Falls, Pierre, and Mitchell.
Weather seems to be by observation only.
This interesting site has two time-lapse movies which require Real Player to view with either Netscape or Microsoft Internet Explorer. A free download of Real Player is available. It has all the usual links. News and weather and lots more. News Channel 5 Sky Cam Has a South Skycam and a North Skycam.