St. Lucie County weather, town by town
10 places in St. Lucie County, Florida, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1901 to 2026. Station extremes, not official state records.
St. Lucie County Weather Facts
St. Lucie County has 10 places on myweatherrock (7 census-designated places, 2 cities, 1 towns), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 105°F at Stuart on July 21, 1942. The coldest night is 19°F at Ft Pierce on January 22, 1985. The wettest day brought 13.85 inches of rain at Ft Pierce on September 10, 2017. The biggest single-day snow measured 0 inches at Fort Pierce 5.4 Sse on June 17, 1998. Those are station measurements from NOAA's daily records, 1901 to 2026, not official state records. By area the largest place is Port St. Lucie, about 119 square miles.
About St. Lucie County weather
The map on the Now tab shows every St. Lucie County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 10 St. Lucie County towns with station normals, the warmest month is August, when the day usually reaches 90°F, and the coldest is January, when the night usually falls to 52°F. August is the wettest, with rain on about 15 days. January nights run from about 49°F in Port St. Lucie to 57°F in Hutchinson Island South.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
St. Lucie County weather records
Measured at the NOAA stations serving these towns, daily records 1901 to 2026. Station extremes, not official state records.
Common questions about St. Lucie County weather
- What is the hottest temperature recorded at a St. Lucie County station?
- 105°F at Stuart on July 21, 1942, in the NOAA daily station records myweatherrock holds (1901 to 2026).
- What is the coldest temperature recorded at a St. Lucie County station?
- 19°F at Ft Pierce on January 22, 1985.
- What is the most rain a St. Lucie County station has measured in one day?
- 13.85 inches at Ft Pierce on September 10, 2017.
- What is the biggest one-day snowfall at a St. Lucie County station?
- 0 inches at Fort Pierce 5.4 Sse on June 17, 1998.
- How many St. Lucie County towns have a weather page here?
- 10: 7 census-designated places, 2 cities, 1 towns. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the St. Lucie County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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