After starting the weekend with temperatures below freezing on Saturday morning, much of north Florida will finally crack 70 on Monday. Temperature will be near or even slightly above normal, thanks for a strengthening south wind. The warmer trend will come to an abrupt end Tuesday, however, as a strong cold front surges in. Showers and even a few thunderstorms will be lined up along the front, arriving in the panhandle before sunrise Tuesday and sweeping through south Florida by midday Wednesday. Sharply colder temperatures will follow for much of north and central Florida, whereas southern parts of the state will only see a slight temperature drop. A second, colder front arrives Thursday and early forecast data on that is indicating a freeze could be possible all the way to I-4 on Friday morning. Updates on that forthcoming.