South Florida's weather forecast

More cold air is expected to flow over the region by this evening, dipping temperatures into the upper 40s and low 50s by late tonight and Wednesday morning.

Until then, expect a cloudy mild day.

South Florida's Tuesday forecast calls for afternoon highs in the mid 70s and a 40 percent chance of rain. It also should be breezy, with gusts more than 20 mph.

Wednesday should be cool during the day, with temperatures in the low 60s, and chilly at night, with readings in the low to mid 40s. Far inland areas, notably in Palm Beach County, could see the upper 30s.


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For the rest of the week, expect brisk mornings, mild afternoons and lots of sun.

Central Florida's Tuesday forecast: Mostly sunny with highs in the mid 70s, lows in the upper 30s and a 20 percent chance of rain.

Fire weather: From weather expert Jim Lushine:

Cool air in South Florida is almost always dry air as well.

When relative humidities get low, below 35 percent for several hours, and when winds and brush dryness are favorable, there is an increased risk of wildfires.

If this is predicted to happen during the upcoming 24 hours, the National Weather Service will issue a "red flag warning," or if beyond 24 hours a "fire weather watch."  

The red flag warning does not mean that wildfires are more likely to start but rather that if a fire does start it can spread quickly.

Normally the most hazardous fire conditions occur during the afternoon when relative humidities are lowest and winds are strongest.