Port St. Lucie, FL Weather Forecast
Right now it is 73°F and mostly clear in Port St. Lucie (as of Fri, 2:55 AM EST). Friday: high near 84°F. Tomorrow: mostly sunny, high near 84°F. Official NWS forecast and alerts, refreshed every 30 minutes.
Current conditions
Measured at Witham Field Airport (11 mi from the city center).
Weather tomorrow in Port St. Lucie
Mostly Sunny84°FMostly sunny, with a high near 84. North northwest wind 0 to 10 mph.
Mostly Clear67°FMostly clear, with a low around 67. North wind around 5 mph.
Weather alerts
1 active alertRip Current Statement until Nov 8, 2:00 AM EST
Rip Current Statement issued November 6 at 1:25AM EST until November 8 at 2:00AM EST by NWS Melbourne FL
* WHAT...Dangerous rip currents expected. * WHERE...The beaches of Volusia, Brevard, Indian River, Saint Lucie and Martin counties. * WHEN...Through late Saturday night. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water.
What to do: Rip currents are powerful channels of water flowing quickly away from shore, which occur most often at low spots or breaks in the sandbar and in the vicinity of structures such as jetties and piers. Heed the advice of lifeguards, beach patrol flags and signs. Entering the surf is strongly discouraged. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.
NWS Melbourne FL · Severity: Moderate
7-day forecast
Mostly Clear69°FOvernight: Mostly clear, with a low around 69. Wind around 0 mph.
Mostly Sunny then Slight Chance Rain Showers
19% chance of rain/snow84°F / 68°FA slight chance of rain showers between noon and 3pm. Mostly sunny. High near 84, with temperatures falling to around 80 in the afternoon. North northeast wind 0 to 5 mph. Chance of precipitation is 20%. Friday Night: Mostly clear, with a low around 68. North northwest wind around 0 mph.
Mostly Sunny84°F / 67°FMostly sunny, with a high near 84. North northwest wind 0 to 10 mph. Saturday Night: Mostly clear, with a low around 67. North wind around 5 mph.
Sunny82°F / 67°FSunny, with a high near 82. North wind 5 to 10 mph. Sunday Night: Partly cloudy, with a low around 67. North northeast wind 0 to 5 mph.
Mostly Sunny81°F / 66°FMostly sunny, with a high near 81. Northeast wind 5 to 10 mph. Monday Night: Partly cloudy, with a low around 66. Northeast wind 0 to 5 mph.
Slight Chance Rain Showers 15% chance of rain/snow80°F / 66°FA slight chance of rain showers between 7am and 1pm. Mostly sunny, with a high near 80. East northeast wind 0 to 5 mph. Chance of precipitation is 20%. Tuesday Night: Mostly cloudy, with a low around 66. Northeast wind 0 to 5 mph.
Partly Sunny then Slight Chance Rain Showers 17% chance of rain/snow81°F / 65°FA slight chance of rain showers after 1pm. Partly sunny, with a high near 81. North northeast wind 0 to 5 mph. Chance of precipitation is 20%. Wednesday Night: A slight chance of rain showers before 7pm. Mostly cloudy, with a low around 65. North northwest wind around 0 mph. Chance of precipitation is 20%.
Mostly Cloudy then Chance Showers And Thunderstorms 30% chance of rain/snow79°FA chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. West wind 0 to 5 mph.
Forecast issued by NWS forecast office MLB · updated Nov 6, 1:39 AM EST. Daytime highs and overnight lows are on the right.
Hourly forecast, radar & more on weather.gov
Nearby cities
Port St. Lucie population: 268,062 (U.S. Census Bureau, July 1, 2025 estimate). More Florida cities · All US cities
Source: National Weather Service / NOAA (public domain), fetched live. Tachlis is not affiliated with the NWS.
Questions & answers
What is the weather tomorrow in Port St. Lucie?
Saturday, November 7: Mostly Sunny, high near 84°F; night: mostly clear, low around 67°F.
Where does the Port St. Lucie forecast come from?
From the National Weather Service forecast office MLB, which writes the official forecast for Port St. Lucie's 2.5 km grid square. Current conditions come from the nearest NWS/FAA weather station.
How often is the Port St. Lucie weather updated?
This page fetches fresh data from the National Weather Service at most every 30 minutes, and checks for new watches and warnings every 5 minutes.
What time zone are the times shown in?
Local time for Port St. Lucie (America/New York).
Why can the current temperature differ from the forecast?
The current reading is a real measurement at a weather station, often at an airport, while the forecast describes the whole grid square around the city. Temperatures can differ by a few degrees across a city.