On Saturday, the National Weather Service in Melbourne forecasts sunny skies with a high near 77. Westnorthwest wind around 5 mph.

Average high temperatures are usually in the mid-70s for this time of year in Vero Beach, Fort Pierce and Stuart, while lows are usually in the low-to-mid 50s, a meteorologist said.

On Thursday, the National Weather Service in Melbourne forecasts patchy fog before 10 a.m. Otherwise, it will be mostly sunny.

This week's round of below-average temperatures will unfold with an added dose of rain, according to forecasters.