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Will it freeze in Port St. Lucie in the next 7 nights?
No overnight lows at or below 32°F are forecast in Port St. Lucie during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 69°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.
- Tonight 69°F Above 36°F · Mostly Clear
- Fri, Nov 6 68°F Above 36°F · Mostly Clear
- Sat, Nov 7 67°F Above 36°F · Mostly Clear
- Sun, Nov 8 67°F Above 36°F · Partly Cloudy
- Mon, Nov 9 66°F Above 36°F · Mostly Cloudy
- Tue, Nov 10 65°F Above 36°F · Slight Chance Rain Showers
- Wed, Nov 11 64°F Above 36°F · Chance Rain Showers
Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.
Frost and freeze probabilities
Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.
These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.
Average first hard freeze in Port St. Lucie
Most years have no 28°F hard freeze at Stuart, according to NOAA’s 1991–2020 Climate Normals. Check the short-term forecast above during cold snaps.
| Temperature | Last spring date 90% · 50% · 10% chance of a later freeze | First fall date 10% · 50% · 90% chance of an earlier freeze | Season |
|---|---|---|---|
| 36°F frost possible | Jan 3 · Jan 27 · Feb 17 | Dec 28 · Jan 17 · Feb 9 | 365 days |
| 32°F freeze | Jan 4 · Jan 23 · Feb 10 | Jan 1 · Jan 18 · Feb 9 | 365 days |
| 28°F hard freeze | rare in most years | rare in most years | 365 days |
Average high temperature by month
1991–2020 normals at Stuart
Average low temperature by month
Months with lows near or below freezing carry frost risk
Where these frost dates come from
The frost dates for Port St. Lucie, FL come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Stuart (station USC00088620, elevation 13 ft), 11 mi from Port St. Lucie. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.
Frost dates near Port St. Lucie
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Fort Pierce, FL | 11 mi | rare | rare |
| Stuart, FL | 11 mi | rare | rare |
| Indiantown, FL | 18 mi | rare | rare |
| Vero Beach, FL | 25 mi | rare | rare |
| Okeechobee, FL | 27 mi | Jan 31 | Jan 11 |
| Tequesta, FL | 27 mi | rare | rare |
| Jupiter, FL | 30 mi | rare | rare |
| Palm Beach Gardens, FL | 33 mi | rare | rare |
| Fellsmere, FL | 34 mi | rare | rare |
| Sebastian, FL | 35 mi | rare | rare |
Frequently asked questions
When is the last frost in Port St. Lucie?
Port St. Lucie doesn’t reach 32°F in a typical year, according to NOAA’s 1991–2020 normals for the nearest station.
When is the first frost in Port St. Lucie?
Freezes are uncommon here; check the 7-night forecast above during cold snaps.
Can it frost in Port St. Lucie after the last frost date?
Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after January 27.
What growing zone is Port St. Lucie?
Port St. Lucie is in USDA Plant Hardiness Zone 10a (average annual extreme minimum temperature 30 to 35°F), based on the 2023 USDA map for ZIP code 34953. See growing zones in Florida.
More: all Florida frost dates · Florida growing zones · UV index today in Port St. Lucie · frost vs. freeze