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CheckWeather USPort Saint Lucie
Forecast confidence: High · models disagree by 4°F

Port Saint Lucie weather

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Thunderstorm,rain likely tomorrow

NWS, the American and the European model agree on a high near 89° in Port Saint Lucie today. Tomorrow looks light drizzle around 89°, with a 80% chance of rain.

89°76°
89°75°
87°75°
88°75°
89°78°
88°77°
Todaymodels agreeTomorrowsplit ±5°Mondaysplit ±5°Tuesdaysplit ±7°Wednesdaymodels agreeThursdaysplit ±6°
NWSNational Blend (NBM)
89°
Thunderstorm
Today 89°·Low 76°·Rain 61%
AmericanNOAA GFS
92°
Light drizzle
Today 92°·Low 76°·Rain 61%
EuropeanECMWF
88°
Thunderstorm
Today 88°·Low 75°·Rain 91%

The weather map: all three models at once

NWS, American, European side by side around Port Saint Lucie and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Thunderstorm
89° 76°
models agree
Tomorrow
Light drizzle
89° 75°
±5°
Mon
Heavy drizzle
87° 75°
±5°
Tue
Showers
88° 75°
±7°
Wed
Light drizzle
89° 78°
models agree
Thu
Drizzle
88° 77°
±6°
Fri
Thunderstorm
89° 77°
±5°
Sat
Thunderstorm
88° 77°
models agree
Sun
Light drizzle
87° 78°
±8°
Mon
Drizzle
87° 78°
±5°
Tue
Drizzle
87° 77°
models agree
Wed
Thunderstorm
88° 76°
±7°
Thu
Thunderstorm
88° 75°
±7°
Fri
Thunderstorm
87° 75°
±5°

Port Saint Lucie, FL is at its warmest in Jul (average highs near 90°F) and coldest in Jan (lows around 59°F), with roughly 60 in of precipitation across the year. Below, compare what NWS, American, European forecast for Port Saint Lucie right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

Port Saint Lucie climate by month

average daytime high and overnight low across a typical year
Jan
74°
59°
Feb
78°
60°
Mar
82°
65°
Apr
83°
66°
May
88°
71°
Jun
88°
74°
Jul
90°
75°
Aug
90°
76°
Sep
88°
74°
Oct
83°
72°
Nov
80°
66°
Dec
74°
61°

Which forecast is most accurate in Port Saint Lucie?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
91
/100rank #1
82±1.8°F94±1.9 mph100100% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
55
/100rank #2
81±1.9°F91±2.7 mph026% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±4°88° to 92°±30%61% to 91% chance
Tomorrow±5°86° to 91°±55%25% to 80% chance
Mon±5°84° to 89°±28%64% to 92% chance
Tue±7°85° to 92°±5%79% to 84% chance
Wed±3°88° to 91°±2%65% to 67% chance

The models often agree on temperature and still split on rain — and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Port Saint Lucie

today, local time
Sunrise
07:02
Sunset
19:37
Daylight
12h 35m

Common questions

What's the weather in Port Saint Lucie today?
On this page we show what NWS, American, European each forecast for Port Saint Lucie today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Port Saint Lucie today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Port Saint Lucie and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Port Saint Lucie?
Over the last 30 days, the European model has been the most accurate for Port Saint Lucie (CheckWeather Score 91/100), ahead of the American at 55. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Port Saint Lucie?
July is typically the warmest month in Port Saint Lucie, with average highs around 90°F.
How cold does Port Saint Lucie get?
The coldest month in Port Saint Lucie is January, when overnight lows average about 59°F.
How much rain does Port Saint Lucie get?
Port Saint Lucie sees roughly 60 in of precipitation a year, with September usually the wettest month.

Nearby

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