Port St. Lucie, Florida weather
United States · America/New_York · 27.27, -80.36
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Port St. Lucie, FL Weather Today
Current conditions, hourly and 7 day forecast, official severe weather alerts, and air quality for Port St. Lucie, Florida. Every section shows where the data came from and when it was last checked.
Your briefing
Port St. Lucie, Florida
- Right now
- No official warning for this location. 77° and overcast.Observed
- Next few hours
- Light rain expected around 12:00 AM.Forecast
- Your day
- Take an umbrella.Our reading
- Best outdoor window: 6 AM to 10 AM.Our reading
What happens next
- NowOvercastObserved
- NextLight rain expected around 12:00 AM.Forecast
- AfterConditions forecast to improve after about 1:00 AM.Forecast
Official warnings for this location come from NOAA / National Weather Service. Lines marked Our reading are WeatherSignal’s reading of the measurements and forecast, not an official statement.
Port St. Lucie, Florida
77°
Overcast
Feels like 77° · High 77° · Low 77°
Overcast sky here right now. Nothing falling.
Mild and cloudy tonight. 77° right now. Overnight low around 77°. Tomorrow starts heavy rain. Sunrise is at 2:00 AM.
- Overnight low 77°
- Sunrise 2:00 AM
- Rain overnight 0%
Next few hours
Now
77°
—
8 PM
76°
—
9 PM
76°
—
10 PM
75°
—
11 PM
75°
—
- Rain chance
- 0%
- Wind
- 3 mph W
- Humidity
- 96%
- Air quality
- No reading
Source updated: 11:55:14 PM · WeatherSignal checked: 11:55:14 PM
What matters today
Six quick answers for Port St. Lucie. Tap Why? on any of them to see the reasoning.
Umbrella
Nah (Good)
Best time
8 AM (Good)
Dog walk
5 AM (Good)
Car wash
Wait (Not good)
Cookout
Green light (Good)
Windows
Roll 'em down (Good)
Today's Signal
Good day
80/100
Mostly favorable, but the humidity and poor visibility will make it less comfortable outside.
Dew point 76° · Visibility 0.0 mi
Today is about 3° cooler than the rest of the week.
See exactly how this number was worked out
Every location starts at 100. Points come off for heat, cold, rain, wind, UV, humidity, poor visibility, and any official alert. Nothing is ever added back.
- Starting score100
- Dew point 76°: oppressive humidity-10
- Visibility 0.0 mi-10
- Final Signal80
Next 12 hours
No big swings coming in the next 12 hours.
- 2 AMSunrise
- 8 PM—76 degrees, 0 percent chance of rain
- 9 PM—76 degrees, 0 percent chance of rain
- 10 PM—75 degrees, 0 percent chance of rain
- 11 PM—75 degrees, 0 percent chance of rain
- 12 AM—75 degrees, 0 percent chance of rain
- 1 AM—75 degrees, 0 percent chance of rain
- 2 AM—74 degrees, 0 percent chance of rain
- 3 AM—73 degrees, 0 percent chance of rain
- 4 AM—73 degrees, 0 percent chance of rain
- 5 AM—73 degrees, 0 percent chance of rain
- 6 AM—73 degrees, 0 percent chance of rain
- 7 AM—73 degrees, 0 percent chance of rain
The line is temperature by hour. The number under each hour is the chance of rain. Scroll sideways for the full 12 hours.
Next change
Nothing major changes for a while
Temperatures hold between about 73° and 76°. There is no meaningful rain signal in the next several hours.
WeatherSignal NOW: Port St. Lucie, Florida
One number for everything happening around you, from 0 to 100.
96
NORMAL
Nothing here needs your attention right now.
Tap any line to see exactly what added or subtracted points. Every rule is published on our methodology page. This is an informational signal, not a safety rating: official warnings always come first.
What this means
Generated from the forecast values above using fixed rules: not an AI guess.
- No significant precipitation is expected in the next 24 hours.
Next 24 hours
Will it rain during your commute? When does the storm arrive?
See all 47 hours (2 days) — free
| Time | Condition | Temp | Feels | Precip % | Amount | Wind | Humidity |
|---|---|---|---|---|---|---|---|
| 8 PM | Light rain | 76° | 76° | 0% | 0.01″ | 5 WNW | 97% |
| 9 PM | Partly cloudy | 76° | 76° | 0% | 0.00″ | 4 NNW | 98% |
| 10 PM | Partly cloudy | 75° | 75° | 0% | 0.00″ | 2 NE | 99% |
| 11 PM | Fog | 75° | 75° | 0% | 0.00″ | 1 W | 100% |
| 12 AM | Fog | 75° | 75° | 0% | 0.00″ | 2 WNW | 100% |
| 1 AM | Fog | 75° | 75° | 0% | 0.00″ | 2 SSW | 100% |
| 2 AM | Fog | 74° | 74° | 0% | 0.00″ | 3 SSW | 100% |
| 3 AM | Fog | 73° | 73° | 0% | 0.00″ | 2 WSW | 100% |
| 4 AM | Fog | 73° | 73° | 0% | 0.00″ | 3 SW | 100% |
| 5 AM | Fog | 73° | 73° | 0% | 0.00″ | 4 SSW | 100% |
| 6 AM | Fog | 73° | 73° | 0% | 0.00″ | 3 SW | 100% |
| 7 AM | Heavy rain | 73° | 73° | 0% | 0.07″ | 4 W | 100% |
| 8 AM | Heavy rain | 72° | 72° | 0% | 0.37″ | 5 NNE | 100% |
| 9 AM | Heavy rain | 73° | 73° | 0% | 0.28″ | 5 E | 98% |
| 10 AM | Heavy rain | 74° | 74° | 0% | 0.04″ | 6 NW | 97% |
| 11 AM | Overcast | 76° | 76° | 0% | 0.00″ | 5 N | 90% |
| 12 PM | Overcast | 78° | 78° | 0% | 0.00″ | 5 NNE | 83% |
| 1 PM | Overcast | 81° | 86° | 0% | 0.00″ | 3 W | 77% |
| 2 PM | Overcast | 82° | 88° | 0% | 0.00″ | 4 WNW | 74% |
| 3 PM | Light rain | 82° | 88° | 0% | 0.03″ | 6 NW | 73% |
| 4 PM | Heavy rain | 80° | 85° | 0% | 0.15″ | 9 NNW | 81% |
| 5 PM | Heavy rain | 76° | 76° | 0% | 0.04″ | 9 N | 95% |
| 6 PM | Light rain | 75° | 75° | 0% | 0.03″ | 14 N | 96% |
| 7 PM | Heavy rain | 74° | 74° | 0% | 0.04″ | 16 N | 96% |
7-day forecast
Confidence decreases the further out you look.
Today
Overcast
77° / 77°
- Precip:
- 0% · 0.00″
- Wind:
- 3 mph
- UV:
- 0.0
- Sun:
- 2 AM to 2 PM
Sat, Oct 17
Heavy rain
82° / 72°
- Precip:
- 0% · 1.07″
- Wind:
- 16 mph
- UV:
- 7.3
- Sun:
- 2 AM to 2 PM
Sun, Oct 18
Light rain
80° / 72°
- Precip:
- 0% · 0.65″
- Wind:
- 21 mph
- UV:
- 6.9
- Sun:
- 2 AM to 2 PM
Mon, Oct 19
Clear sky
82° / 75°
- Precip:
- 0% · 0.00″
- Wind:
- 20 mph
- UV:
- 0.2
- Sun:
- 2 AM to 2 PM
Tue, Oct 20
Clear sky
79° / 70°
- Precip:
- 0% · 0.00″
- Wind:
- 11 mph
- UV:
- 0.0
- Sun:
- 2 AM to 2 PM
Lower confidence: long-range outlook, not a certainty.
Wed, Oct 21
Clear sky
80° / 68°
- Precip:
- 0% · 0.00″
- Wind:
- 11 mph
- UV:
- 0.0
- Sun:
- 2 AM to 2 PM
Lower confidence: long-range outlook, not a certainty.
Thu, Oct 22
Clear sky
78° / 64°
- Precip:
- 0% · 0.00″
- Wind:
- 10 mph
- UV:
- 0.0
- Sun:
- 2 AM to 2 PM
Lower confidence: long-range outlook, not a certainty.
Forecasts describe likely conditions, not guaranteed outcomes. Official warnings from your national weather service always take precedence over anything shown here.
Port St. Lucie hourly weather
Hour by hour, out to eight days ahead.
Port St. Lucie 7 day forecast
Highs, lows and rain chance for the week.
Air quality detail
Pollutants, category, and official guidance.