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ASTRONOMY TERM
Midnight Sun: A high-latitude (polar) phenomenon observed around midsummer when the sun does not sink below the horizon throughout the 24-hour period; therefore, the sun may be seen at midnight.
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Tom Skilling is chief meteorologist at WGN-TV. His forecasts can be seen Monday through Friday on WGN-TV News at noon and 9 p.m.
WGN-TV meteorologists Steve Kahn, Richard Koeneman and Paul Dailey plus weather producer Bill Snyder contribute to this page.
