Saint Lucie County, FL Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Saint Lucie County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A slight chance of rain showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. East wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
County Weather Overview
This county weather page brings together forecast coverage for Saint Lucie County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Saint Lucie County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 19 to May 24, 2026
- Latest sync
- May 18, 2026 10:39 AM EDT
- Forecast office
- MLB
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Lucie County
Friday looks like the warmest upcoming period in Saint Lucie County at 89 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 72 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 15 mph E.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- May 18, 2026 10:39 AM 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 slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 73. East wind 0 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
A slight chance of rain showers between 8am and 11am, then a slight chance of showers and thunderstorms. Sunny, with a high near 87. East wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 72. East wind 0 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Sunny, with a high near 88. East wind 0 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 73. East southeast wind 0 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 89. East southeast wind 0 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms between 8am and 2pm, then showers and thunderstorms likely. Mostly sunny, with a high near 89. Southeast wind 0 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 74. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 89. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. East southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
May 19
|
Chance Showers And Thunderstorms
|
87°F |
5 to 15 mph
E
|
|
Tuesday Night
May 19
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
73°F |
0 to 15 mph
E
|
|
Wednesday
May 20
|
Slight Chance Showers And Thunderstorms
|
87°F |
5 to 15 mph
E
|
|
Wednesday Night
May 20
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
72°F |
0 to 10 mph
E
|
|
Thursday
May 21
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
88°F |
0 to 10 mph
E
|
|
Thursday Night
May 21
|
Chance Showers And Thunderstorms then Mostly Clear
|
73°F |
0 to 10 mph
ESE
|
|
Friday
May 22
|
Chance Showers And Thunderstorms
|
89°F |
0 to 10 mph
ESE
|
|
Friday Night
May 22
|
Chance Showers And Thunderstorms then Partly Cloudy
|
74°F |
5 to 10 mph
SE
|
|
Saturday
May 23
|
Slight Chance Showers And Thunderstorms
|
89°F |
0 to 10 mph
SE
|
|
Saturday Night
May 23
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
74°F |
5 to 10 mph
SE
|
|
Sunday
May 24
|
Chance Showers And Thunderstorms
|
89°F |
5 to 15 mph
SE
|
|
Sunday Night
May 24
|
Chance Showers And Thunderstorms then Partly Cloudy
|
75°F |
5 to 10 mph
ESE
|
Major City Forecasts
Live forecast snapshots for major cities across Saint Lucie County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Saint Lucie County.
Largest mapped city population in this region: 209,715.
