-30,000°F

Last week, the National Weather Service website was a little wonky:

(screenshot of week's worth of weather forecasts showing highs and lows of -30,000 degrees and chance of precipitation of -30,000 percent)
(click to enlarge)

Either that or the weather was actually sucking energy out of the space-time continuum and into some other universe since Absolute Zero is only -459.67°F. That and there was really no chance of precipitation — so little in fact that it actually stopped raining in other cities to compensate. ;)