South Florida temperatures could reach near 90 degrees today as a high pressure system marked by stable sinking air and a lack of clouds allows the sun to shine through.
While West Palm Beach is unlikely to break the record of 92 degrees set in 1954, it could come closer Saturday when the daytime high is expected to be a little warmer at 87 degrees. The record for Saturday is 91 degrees set in 1948.
Rain chances today are low, just 20 percent in Palm Beach County.
But that changes Saturday, according to the National Weather Service, as a weak cold front approaches South Florida hiking the chances of rain to at least 30 percent.
Forecasters said this morning that models differ on how much rain is expected with the front. A trough of low pressure, which increases the spin of air in the upper atmosphere and can promote rain, may precede the front.
“This would make Saturday more of a concern than Sunday when the actual passage across South Florida occurs,” Miami-based forecasters wrote.
The Storm Prediction Center in Norman, Okla., has areas just north of Palm Beach County at a “marginal” risk for severe weather on Saturday, with thunderstorms throughout Palm Beach, Broward and Miami-Dade counties. Marginal is the lowest category on a five-category scale of storm severity.
As the front moves through Sunday, high temperatures Sunday should struggle to reach 80 degrees with mostly cloudy skies
The overnight low Sunday will dip into the high 60s, falling from the current mid 70s.
Coastal Palm Beach County’s March rainfall was nearly an inch above normal for the month, according to the South Florida Water Management District.
About 4.23 inches fell in March, mostly in the past 10 days. Miami-Dade County is more than an inch below normal for March rainfall, while the 16-county region covered by the district is down .38 inches.
The Climate Prediction Center expects April to have normal rain amounts in South Florida, a change from the past five months where El Nino-driven rainfall has been above normal.