Key Biscayne residents with outdoor plans should take advantage of mostly sunny skies early, before showers develop this afternoon with a possible thunderstorm. The high will be around 81 degrees, with south winds at 10 to 15 mph. Chance of rain is 60%.

Tonight, showers early, then clearing overnight, with a low of 71 degrees.

Monday, mostly sunny in the morning, then increasing clouds with scattered thunderstorms later in the day. The high will be around 82 degrees.

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