Port Saint Lucie, FL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Port Saint Lucie, FL in one place.
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. East wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Port Saint Lucie, FL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 23, 2026 7:40 PM EDT.
The active forecast window currently covers Aug 23 to Aug 29, 2026 for Port Saint Lucie, FL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 23 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 7:40 PM EDT
- Forecast office
- MLB
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Saint Lucie
This Afternoon looks like the warmest upcoming period in Port Saint Lucie at 94 degrees F.
Tonight is the coolest period ahead with temperatures near 75 degrees F.
The strongest winds are forecast for Monday at about 0 to 10 mph S.
Precipitation is mentioned in 14 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 7:40 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- MLB
- Radar station
- KMLB
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 75. South wind 0 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms after 2pm. Mostly sunny. High near 94, with temperatures falling to around 89 in the afternoon. Heat index values as high as 103. South wind 0 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 75. South southeast wind 0 to 5 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. South southeast wind 0 to 5 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. Southeast wind 0 to 5 mph. Chance of precipitation is 30%.
Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 93. Southeast wind 0 to 10 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely before 2am. Partly cloudy, with a low around 75. Southeast wind 0 to 5 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely after 8am. Mostly sunny, with a high near 93. East southeast wind 0 to 5 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely before 2am. Partly cloudy, with a low around 75. East southeast wind 0 to 5 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely after 8am. Mostly sunny, with a high near 93. East wind 0 to 10 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 76. East northeast wind 0 to 5 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely after 8am. Mostly sunny, with a high near 92. East wind 0 to 10 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 76. East wind 0 to 10 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Aug 23
|
Chance Showers And Thunderstorms
|
94°F |
5 mph
E
|
|
Tonight
Aug 23
|
Chance Showers And Thunderstorms then Partly Cloudy
|
75°F |
0 to 5 mph
S
|
|
Monday
Aug 24
|
Mostly Sunny then Chance Showers And Thunderstorms
|
94°F |
0 to 10 mph
S
|
|
Monday Night
Aug 24
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
75°F |
0 to 5 mph
SSE
|
|
Tuesday
Aug 25
|
Sunny then Chance Showers And Thunderstorms
|
94°F |
0 to 5 mph
SSE
|
|
Tuesday Night
Aug 25
|
Chance Showers And Thunderstorms then Partly Cloudy
|
75°F |
0 to 5 mph
SE
|
|
Wednesday
Aug 26
|
Mostly Sunny then Showers And Thunderstorms Likely
|
93°F |
0 to 10 mph
SE
|
|
Wednesday Night
Aug 26
|
Showers And Thunderstorms Likely
|
75°F |
0 to 5 mph
SE
|
|
Thursday
Aug 27
|
Showers And Thunderstorms Likely
|
93°F |
0 to 5 mph
ESE
|
|
Thursday Night
Aug 27
|
Showers And Thunderstorms Likely
|
75°F |
0 to 5 mph
ESE
|
|
Friday
Aug 28
|
Showers And Thunderstorms Likely
|
93°F |
0 to 10 mph
E
|
|
Friday Night
Aug 28
|
Showers And Thunderstorms Likely then Partly Cloudy
|
76°F |
0 to 5 mph
ENE
|
|
Saturday
Aug 29
|
Showers And Thunderstorms Likely
|
92°F |
0 to 10 mph
E
|
|
Saturday Night
Aug 29
|
Showers And Thunderstorms Likely then Partly Cloudy
|
76°F |
0 to 10 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Saint Lucie.
