National Weather Service Forecast for: Port St. Lucie FL
Issued by: National Weather Service Melbourne, FL
Updated: 6:29 am EST Dec 5, 2025
 
Today

Today: Sunny, with a high near 84. Light south wind becoming south southwest 5 to 10 mph in the morning.
Sunny

 Tonight

Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 63. Calm wind.
Mostly Clear
then Patchy
Fog
 Saturday

Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 84. Light southwest wind increasing to 5 to 10 mph in the morning.
Patchy Fog
then Mostly
Sunny
 Saturday
Night
Saturday Night: Partly cloudy, with a low around 64. Calm wind.
Partly Cloudy

 Sunday

Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Light west southwest wind becoming southwest 5 to 10 mph in the morning.
Partly Sunny
then Slight
Chance
T-storms
 Sunday
Night
Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 40%.
Chance
Showers

 Monday

Monday: A 40 percent chance of showers. Mostly cloudy, with a high near 77. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Chance
Showers

 Monday
Night
Monday Night: Mostly cloudy, with a low around 60. North wind around 5 mph, with gusts as high as 20 mph.
Mostly Cloudy

 Tuesday

Tuesday: Partly sunny, with a high near 76. Northeast wind 5 to 10 mph.
Partly Sunny
Hi 84 °F Lo 63 °F Hi 84 °F Lo 64 °F Hi 83 °F Lo 65 °F Hi 77 °F Lo 60 °F Hi 76 °F

 

Today
 
 Sunny, with a high near 84. Light south wind becoming south southwest 5 to 10 mph in the morning.
Tonight
 
 Patchy fog after 3am. Otherwise, partly cloudy, with a low around 63. Calm wind.
Saturday
 
 Patchy fog before 8am. Otherwise, mostly sunny, with a high near 84. Light southwest wind increasing to 5 to 10 mph in the morning.
Saturday Night
 
 Partly cloudy, with a low around 64. Calm wind.
Sunday
 
 A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Light west southwest wind becoming southwest 5 to 10 mph in the morning.
Sunday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 40%.
Monday
 
 A 40 percent chance of showers. Mostly cloudy, with a high near 77. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
 
 Mostly cloudy, with a low around 60. North wind around 5 mph, with gusts as high as 20 mph.
Tuesday
 
 Partly sunny, with a high near 76. Northeast wind 5 to 10 mph.
Tuesday Night
 
 Mostly cloudy, with a low around 59. North northeast wind around 5 mph becoming calm.
Wednesday
 
 Partly sunny, with a high near 76. North wind around 5 mph becoming south southeast in the afternoon.
Wednesday Night
 
 Partly cloudy, with a low around 55. Calm wind.
Thursday
 
 Mostly sunny, with a high near 76. West wind 5 to 10 mph.

 

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