National Weather Service Forecast for: Port St. Lucie FL
Issued by: National Weather Service Melbourne, FL
Updated: 8:14 pm EST Feb 1, 2026
 
Tonight

Tonight: Mostly clear, with a low around 26. West northwest wind around 5 mph, with gusts as high as 20 mph.
Mostly Clear

 Monday

Monday: Sunny, with a high near 57. Wind chill values as low as 20 early. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunny

 Monday
Night
Monday Night: Areas of frost after 1am. Otherwise, mostly clear, with a low around 33. Calm wind becoming northwest around 5 mph.
Clear then
Areas Frost
 Tuesday

Tuesday: Areas of frost before 9am. Otherwise, mostly sunny, with a high near 66. Wind chill values as low as 33 early. North northwest wind around 5 mph becoming northeast in the afternoon.
Areas Frost
then Mostly
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 46. Calm wind.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 74. Calm wind becoming south southwest around 5 mph in the afternoon.
Sunny

 Wednesday
Night
Wednesday Night: A 30 percent chance of showers after 1am. Mostly clear, with a low around 50. Calm wind becoming west southwest around 5 mph after midnight.
Mostly Clear
then Chance
Showers
 Thursday

Thursday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 67. West wind 5 to 10 mph, with gusts as high as 20 mph.
Slight Chance
Showers
 Thursday
Night
Thursday Night: Mostly clear, with a low around 38. Northwest wind around 5 mph, with gusts as high as 20 mph.
Mostly Clear
Lo 26 °F Hi 57 °F Lo 33 °F Hi 66 °F Lo 46 °F Hi 74 °F Lo 50 °F Hi 67 °F Lo 38 °F

Extreme Cold Warning
Freeze Warning
Rip Current Statement
 

Tonight
 
 Mostly clear, with a low around 26. West northwest wind around 5 mph, with gusts as high as 20 mph.
Monday
 
 Sunny, with a high near 57. Wind chill values as low as 20 early. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
 
 Areas of frost after 1am. Otherwise, mostly clear, with a low around 33. Calm wind becoming northwest around 5 mph.
Tuesday
 
 Areas of frost before 9am. Otherwise, mostly sunny, with a high near 66. Wind chill values as low as 33 early. North northwest wind around 5 mph becoming northeast in the afternoon.
Tuesday Night
 
 Mostly clear, with a low around 46. Calm wind.
Wednesday
 
 Sunny, with a high near 74. Calm wind becoming south southwest around 5 mph in the afternoon.
Wednesday Night
 
 A 30 percent chance of showers after 1am. Mostly clear, with a low around 50. Calm wind becoming west southwest around 5 mph after midnight.
Thursday
 
 A 20 percent chance of showers before 1pm. Partly sunny, with a high near 67. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
 
 Mostly clear, with a low around 38. Northwest wind around 5 mph, with gusts as high as 20 mph.
Friday
 
 Sunny, with a high near 65. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
 
 Clear, with a low around 42. Calm wind becoming west around 5 mph after midnight. Winds could gust as high as 20 mph.
Saturday
 
 Sunny, with a high near 71. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
 
 Mostly clear, with a low around 45. North wind around 5 mph becoming calm.
Sunday
 
 Sunny, with a high near 72. North northwest wind around 5 mph becoming northeast in the afternoon.

 

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