Forecast for Port St. Lucie, FL | Forecast Periods: 14
Monday
Mar 16
2026
Port St. Lucie, FL
Updated: 4:15 PM EDT
86°F
Chance Showers And Thunderstorms
15 mph SSW
Precipitation: 46%
A chance of showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 86. South southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Hourly Forecast
Extended Forecast
Tonight
Mon, Mar 16
55°F
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
5 mph W
Precipitation: 59%
Showers and thunderstorms likely before 9pm, then a chance of showers and thunderstorms between 9pm and 5am. Some of the storms could be severe. Mostly cloudy. Low around 55, with temperatures rising to around 61 overnight. West wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Tue, Mar 17
64°F
Mostly Cloudy
10 mph NNW
Precipitation: 14%
Mostly cloudy, with a high near 64. North northwest wind 10 to 15 mph, with gusts as high as 25 mph. New rainfall amounts less than a tenth of an inch possible.
Tuesday Night
Tue, Mar 17
51°F
Mostly Cloudy
5 mph N
Precipitation: 10%
Mostly cloudy, with a low around 51. North wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Wed, Mar 18
71°F
Mostly Cloudy
5 mph NNE
Precipitation: 14%
Mostly cloudy, with a high near 71. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Wed, Mar 18
57°F
Slight Chance Rain Showers
5 mph NNE
Precipitation: 16%
A slight chance of rain showers after 8pm. Mostly cloudy, with a low around 57. North northeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday
Thu, Mar 19
74°F
Slight Chance Rain Showers then Partly Sunny
5 mph NNE
Precipitation: 16%
A slight chance of rain showers before 8am. Partly sunny, with a high near 74. North northeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Thursday Night
Thu, Mar 19
55°F
Slight Chance Rain Showers
5 mph N
Precipitation: 16%
A slight chance of rain showers after 8pm. Mostly cloudy, with a low around 55. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday
Fri, Mar 20
75°F
Slight Chance Rain Showers then Mostly Sunny
5 mph N
Precipitation: 16%
A slight chance of rain showers before 8am. Mostly sunny, with a high near 75. North wind 5 to 10 mph. Chance of precipitation is 20%.
Friday Night
Fri, Mar 20
54°F
Mostly Clear
0 mph N
Precipitation: 5%
Mostly clear, with a low around 54. North wind 0 to 10 mph.
Saturday
Sat, Mar 21
79°F
Sunny
0 mph NNE
Precipitation: 2%
Sunny, with a high near 79. North northeast wind 0 to 5 mph.
Saturday Night
Sat, Mar 21
56°F
Mostly Clear
0 mph SE
Precipitation: 2%
Mostly clear, with a low around 56. Southeast wind 0 to 5 mph.
Sunday
Sun, Mar 22
83°F
Sunny
0 mph SW
Precipitation: 4%
Sunny, with a high near 83. Southwest wind 0 to 5 mph.
Sunday Night
Sun, Mar 22
57°F
Mostly Clear
0 mph SSW
Precipitation: 4%
Mostly clear, with a low around 57. South southwest wind 0 to 5 mph.