Port Saint Lucie, FL Weather Forecast
Local 7-day forecast
Sunny then 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 after 4pm. Sunny, with a high near 97. Heat index values as high as 105. South wind 5 to 10 mph. Chance of precipitation is 30%. 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: Jun 16, 2026 12:38 PM EDT.
The active forecast window currently covers Jun 17 to Jun 22, 2026 for Port Saint Lucie, FL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 17 to Jun 22, 2026
- Latest sync
- Jun 16, 2026 12:38 PM EDT
- Forecast office
- MLB
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Saint Lucie
Wednesday looks like the warmest upcoming period in Port Saint Lucie at 97 degrees F.
Saturday Night is the coolest period ahead with temperatures near 75 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 10 mph S.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 16, 2026 12:38 PM EDT
- Coverage
- 6 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 8pm. Partly cloudy, with a low around 76. Heat index values as high as 103. South wind 5 to 10 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. South southeast wind 0 to 10 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77. South southeast wind 0 to 10 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. South southeast wind 0 to 10 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76. South wind 0 to 5 mph. Chance of precipitation is 40%.
Showers and thunderstorms likely after 8am. Mostly sunny, with a high near 93. Southwest wind 0 to 5 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely before 2am. Mostly cloudy, with a low around 75. South southwest wind 0 to 5 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely after 8am. Mostly sunny, with a high near 92. Southwest wind 0 to 5 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 2am. Mostly cloudy, with a low around 75. South wind 0 to 5 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. South wind 0 to 5 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76. South southeast wind 0 to 5 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 17
|
Sunny then Chance Showers And Thunderstorms
|
97°F |
5 to 10 mph
S
|
|
Wednesday Night
Jun 17
|
Chance Showers And Thunderstorms then Partly Cloudy
|
76°F |
5 to 10 mph
S
|
|
Thursday
Jun 18
|
Mostly Sunny then Chance Showers And Thunderstorms
|
95°F |
0 to 10 mph
SSE
|
|
Thursday Night
Jun 18
|
Chance Showers And Thunderstorms then Partly Cloudy
|
77°F |
0 to 10 mph
SSE
|
|
Juneteenth
Jun 19
|
Mostly Sunny then Chance Showers And Thunderstorms
|
94°F |
0 to 10 mph
SSE
|
|
Friday Night
Jun 19
|
Chance Showers And Thunderstorms
|
76°F |
0 to 5 mph
S
|
|
Saturday
Jun 20
|
Showers And Thunderstorms Likely
|
93°F |
0 to 5 mph
SW
|
|
Saturday Night
Jun 20
|
Showers And Thunderstorms Likely
|
75°F |
0 to 5 mph
SSW
|
|
Sunday
Jun 21
|
Showers And Thunderstorms Likely
|
92°F |
0 to 5 mph
SW
|
|
Sunday Night
Jun 21
|
Showers And Thunderstorms Likely
|
75°F |
0 to 5 mph
S
|
|
Monday
Jun 22
|
Mostly Sunny then Chance Showers And Thunderstorms
|
92°F |
0 to 5 mph
S
|
|
Monday Night
Jun 22
|
Chance Showers And Thunderstorms
|
76°F |
0 to 5 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Saint Lucie.
