National Weather Service Forecast for: Port St. Lucie FL
Issued by: National Weather Service Melbourne, FL
Updated: 4:15 pm EDT Mar 19, 2026
 
This
Afternoon
This Afternoon: A 20 percent chance of showers. Mostly cloudy, with a high near 74. North wind around 15 mph, with gusts as high as 25 mph.
Slight Chance
Showers
 Tonight

Tonight: A 40 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 59. North wind 5 to 10 mph, with gusts as high as 25 mph.
Chance
Showers
 Friday

Friday: A 10 percent chance of showers before 8am. Mostly sunny, with a high near 75. North northeast wind 5 to 15 mph, with gusts as high as 25 mph.
Slight Chance
Showers then
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 57. North wind around 5 mph.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 78. North northwest wind 5 to 10 mph.
Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 54. Calm wind.
Mostly Clear

 Sunday

Sunday: Sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.
Sunny

 Sunday
Night
Sunday Night: Clear, with a low around 57. Southeast wind around 5 mph becoming calm.
Clear

 Monday

Monday: Sunny, with a high near 85. Calm wind becoming west southwest around 5 mph in the afternoon.
Sunny
Hi 74 °F Lo 59 °F Hi 75 °F Lo 57 °F Hi 78 °F Lo 54 °F Hi 82 °F Lo 57 °F Hi 85 °F

Rip Current Statement
 

This Afternoon
 
 A 20 percent chance of showers. Mostly cloudy, with a high near 74. North wind around 15 mph, with gusts as high as 25 mph.
Tonight
 
 A 40 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 59. North wind 5 to 10 mph, with gusts as high as 25 mph.
Friday
 
 A 10 percent chance of showers before 8am. Mostly sunny, with a high near 75. North northeast wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
 
 Mostly clear, with a low around 57. North wind around 5 mph.
Saturday
 
 Sunny, with a high near 78. North northwest wind 5 to 10 mph.
Saturday Night
 
 Mostly clear, with a low around 54. Calm wind.
Sunday
 
 Sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
 
 Clear, with a low around 57. Southeast wind around 5 mph becoming calm.
Monday
 
 Sunny, with a high near 85. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
 
 Mostly clear, with a low around 58. South southeast wind around 5 mph becoming calm.
Tuesday
 
 A 20 percent chance of showers and thunderstorms. Sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62. East wind around 5 mph becoming calm.
Wednesday
 
 A 30 percent chance of showers. Mostly sunny, with a high near 82. East wind 5 to 10 mph.

 

Forecast from NOAA-NWS for Port St. Lucie FL.