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Current weather in Port St. Lucie is few clouds.

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Now · 10:27 AM

Port St. Lucie Weather & Hourly Forecast

United States · Florida · 34987

87°F

Mostly sunny

Feels like: 100°F

💧 Humidity 77% 🌡 Pressure 30.03 inHg 💨 Wind 5 mph 👁 Visibility 6.2 mi ☁ Clouds 16% ☀️ UV index 7.0 · High 🌅 Sunrise 6:59 AM 🌇 Sunset 7:46 PM

Hourly Forecast for Port St. Lucie

Today

11:00 AM

Mostly sunny

87° 💧 0.01 in 💨 5 mph H 77%30.03 inHg

2:00 PM

Mostly sunny

83° 💧 0.06 in 💨 6 mph H 63%30.03 inHg

5:00 PM

Light rain

80° 💧 0.01 in 💨 8 mph H 65%30.00 inHg

8:00 PM

Mostly cloudy night

81° 💧 None 💨 9 mph H 73%30.00 inHg

11:00 PM

Mostly cloudy night

79° 💧 0.06 in 💨 9 mph H 78%30.03 inHg

Tomorrow

2:00 AM

Light rain

78° 💧 0.03 in 💨 8 mph H 88%30.03 inHg

5:00 AM

Clear night

77° 💧 None 💨 6 mph H 88%30.00 inHg

8:00 AM

Sunny

80° 💧 None 💨 4 mph H 83%30.06 inHg

11:00 AM

Light rain

88° 💧 0.05 in 💨 7 mph H 66%30.09 inHg

2:00 PM

Light rain

83° 💧 0.03 in 💨 12 mph H 60%30.03 inHg

5:00 PM

Light rain

80° 💧 0.05 in 💨 13 mph H 65%30.03 inHg

8:00 PM

Mostly cloudy night

80° 💧 None 💨 12 mph H 78%30.00 inHg

11:00 PM

Light rain

77° 💧 0.19 in 💨 9 mph H 83%30.06 inHg

Sunday

2:00 AM

Light rain

78° 💧 0.03 in 💨 9 mph H 85%30.03 inHg

5:00 AM

Overcast night

80° 💧 0.04 in 💨 8 mph H 88%30.00 inHg

8:00 AM

Moderate rain

80° 💧 0.21 in 💨 6 mph H 88%30.06 inHg

Today

11:00 AM

Mostly sunny

87° 💧 None 💨 5 mph H 77%30.03 inHg

12:00 PM

Mostly sunny

88° 💧 None 💨 5 mph H 73%30.03 inHg

1:00 PM

Light rain

87° 💧 0.01 in 💨 5 mph H 67%30.06 inHg

2:00 PM

Mostly sunny

83° 💧 None 💨 6 mph H 63%30.03 inHg

3:00 PM

Light rain

82° 💧 0.02 in 💨 9 mph H 63%30.03 inHg

4:00 PM

Moderate rain

78° 💧 0.04 in 💨 9 mph H 70%30.00 inHg

5:00 PM

Light rain

80° 💧 0.01 in 💨 8 mph H 65%30.00 inHg

6:00 PM

Overcast

81° 💧 None 💨 9 mph H 64%30.00 inHg

7:00 PM

Mostly cloudy

81° 💧 None 💨 10 mph H 70%30.00 inHg

8:00 PM

Mostly cloudy night

81° 💧 None 💨 9 mph H 73%30.00 inHg

9:00 PM

Mostly cloudy night

81° 💧 None 💨 9 mph H 74%30.03 inHg

10:00 PM

Mostly cloudy night

80° 💧 None 💨 9 mph H 75%30.03 inHg

11:00 PM

Mostly cloudy night

79° 💧 None 💨 9 mph H 78%30.03 inHg

Tomorrow

12:00 AM

Light rain

77° 💧 0.02 in 💨 8 mph H 82%30.03 inHg

1:00 AM

Light rain

76° 💧 0.03 in 💨 9 mph H 86%30.03 inHg

2:00 AM

Light rain

78° 💧 0.02 in 💨 8 mph H 88%30.03 inHg

3:00 AM

Light rain

77° 💧 0.01 in 💨 7 mph H 88%30.00 inHg

4:00 AM

Clear night

77° 💧 None 💨 7 mph H 88%30.00 inHg

5:00 AM

Clear night

77° 💧 None 💨 6 mph H 88%30.00 inHg

6:00 AM

Clear night

76° 💧 None 💨 4 mph H 87%30.03 inHg

7:00 AM

Sunny

76° 💧 None 💨 4 mph H 87%30.03 inHg

8:00 AM

Sunny

80° 💧 None 💨 4 mph H 83%30.06 inHg

9:00 AM

Sunny

84° 💧 None 💨 5 mph H 75%30.06 inHg

10:00 AM

Sunny

87° 💧 None 💨 6 mph H 69%30.09 inHg

11:00 AM

Light rain

88° 💧 0.02 in 💨 7 mph H 66%30.09 inHg

12:00 PM

Light rain

88° 💧 0.03 in 💨 7 mph H 62%30.06 inHg

1:00 PM

Mostly sunny

85° 💧 None 💨 10 mph H 60%30.06 inHg

2:00 PM

Light rain

83° 💧 0.02 in 💨 12 mph H 60%30.03 inHg

3:00 PM

Partly cloudy

83° 💧 None 💨 11 mph H 60%30.03 inHg

4:00 PM

Light rain

81° 💧 0.01 in 💨 13 mph H 62%30.03 inHg

5:00 PM

Light rain

80° 💧 0.03 in 💨 13 mph H 65%30.03 inHg

6:00 PM

Light rain

80° 💧 0.01 in 💨 12 mph H 69%30.03 inHg

7:00 PM

Light rain

80° 💧 0.01 in 💨 11 mph H 77%30.03 inHg

8:00 PM

Mostly cloudy night

80° 💧 None 💨 12 mph H 78%30.00 inHg

9:00 PM

Overcast night

80° 💧 None 💨 12 mph H 77%30.03 inHg

10:00 PM

Overcast night

80° 💧 None 💨 11 mph H 77%30.03 inHg

11:00 PM

Light rain

77° 💧 0.04 in 💨 9 mph H 83%30.06 inHg

Sunday

12:00 AM

Moderate rain

77° 💧 0.07 in 💨 8 mph H 86%30.06 inHg

1:00 AM

Moderate rain

76° 💧 0.09 in 💨 8 mph H 85%30.06 inHg

2:00 AM

Light rain

78° 💧 0.03 in 💨 9 mph H 85%30.03 inHg

3:00 AM

Overcast night

81° 💧 None 💨 10 mph H 86%30.03 inHg

4:00 AM

Overcast night

81° 💧 None 💨 9 mph H 87%30.00 inHg

5:00 AM

Overcast night

80° 💧 None 💨 8 mph H 88%30.00 inHg

6:00 AM

Overcast night

80° 💧 None 💨 7 mph H 88%30.03 inHg

7:00 AM

Moderate rain

80° 💧 0.04 in 💨 6 mph H 88%30.03 inHg

8:00 AM

Moderate rain

80° 💧 0.08 in 💨 6 mph H 88%30.06 inHg

9:00 AM

Moderate rain

82° 💧 0.06 in 💨 7 mph H 85%30.06 inHg

10:00 AM

Moderate rain

84° 💧 0.07 in 💨 10 mph H 78%30.09 inHg

11:00 AM

Moderate rain

86° 💧 0.06 in 💨 9 mph H 72%30.09 inHg

12:00 PM

Light rain

88° 💧 0.01 in 💨 8 mph H 66%30.09 inHg

1:00 PM

Overcast

89° 💧 None 💨 8 mph H 61%30.06 inHg

2:00 PM

Overcast

89° 💧 None 💨 9 mph H 61%30.06 inHg

3:00 PM

Light rain

89° 💧 0.01 in 💨 11 mph H 64%30.03 inHg

4:00 PM

Light rain

87° 💧 0.02 in 💨 11 mph H 68%30.03 inHg

5:00 PM

Light rain

86° 💧 0.01 in 💨 8 mph H 70%30.03 inHg

6:00 PM

Light rain

85° 💧 0.01 in 💨 11 mph H 73%30.00 inHg

7:00 PM

Light rain

83° 💧 0.04 in 💨 10 mph H 81%30.00 inHg

8:00 PM

Light rain

82° 💧 0.03 in 💨 9 mph H 83%30.06 inHg

9:00 PM

Overcast night

81° 💧 None 💨 7 mph H 85%30.06 inHg

10:00 PM

Moderate rain

80° 💧 0.06 in 💨 7 mph H 87%30.09 inHg

11:00 PM

Light rain

81° 💧 0.02 in 💨 6 mph H 86%30.06 inHg

Monday

12:00 AM

Overcast night

81° 💧 None 💨 6 mph H 87%30.03 inHg

1:00 AM

Overcast night

81° 💧 None 💨 5 mph H 87%30.03 inHg

2:00 AM

Overcast night

81° 💧 None 💨 5 mph H 88%30.03 inHg

3:00 AM

Light rain

81° 💧 0.01 in 💨 4 mph H 88%30.00 inHg

4:00 AM

Light rain

80° 💧 0.02 in 💨 4 mph H 88%30.00 inHg

5:00 AM

Light rain

80° 💧 0.01 in 💨 5 mph H 88%30.00 inHg

6:00 AM

Light rain

80° 💧 0.00 in 💨 6 mph H 88%30.00 inHg

7:00 AM

Overcast night

80° 💧 None 💨 6 mph H 88%30.00 inHg

8:00 AM

Overcast

82° 💧 None 💨 4 mph H 85%30.03 inHg

9:00 AM

Light rain

84° 💧 0.02 in 💨 6 mph H 78%30.03 inHg

10:00 AM

Overcast

86° 💧 None 💨 6 mph H 72%30.06 inHg

11:00 AM

Overcast

88° 💧 None 💨 7 mph H 66%30.06 inHg

12:00 PM

Light rain

89° 💧 0.00 in 💨 7 mph H 63%30.06 inHg

1:00 PM

Light rain

90° 💧 0.02 in 💨 9 mph H 61%30.06 inHg

2:00 PM

Light rain

89° 💧 0.01 in 💨 11 mph H 61%30.03 inHg

3:00 PM

Light rain

88° 💧 0.03 in 💨 11 mph H 63%30.03 inHg

4:00 PM

Light rain

88° 💧 0.04 in 💨 10 mph H 64%30.00 inHg

5:00 PM

Light rain

87° 💧 0.02 in 💨 13 mph H 65%30.00 inHg

6:00 PM

Overcast

84° 💧 None 💨 12 mph H 73%30.00 inHg

7:00 PM

Overcast

82° 💧 None 💨 14 mph H 78%30.03 inHg

8:00 PM

Overcast night

82° 💧 None 💨 13 mph H 80%30.03 inHg

9:00 PM

Overcast night

83° 💧 None 💨 12 mph H 77%30.03 inHg

10:00 PM

Overcast night

83° 💧 None 💨 12 mph H 76%30.03 inHg

11:00 PM

Overcast night

83° 💧 None 💨 11 mph H 77%30.03 inHg

Tuesday

12:00 AM

Overcast night

82° 💧 None 💨 9 mph H 78%30.03 inHg

1:00 AM

Overcast night

82° 💧 None 💨 7 mph H 81%30.03 inHg

2:00 AM

Overcast night

81° 💧 None 💨 6 mph H 83%30.00 inHg

3:00 AM

Overcast night

81° 💧 None 💨 6 mph H 84%30.00 inHg

4:00 AM

Light rain

81° 💧 0.01 in 💨 6 mph H 85%30.00 inHg

5:00 AM

Light rain

80° 💧 0.03 in 💨 6 mph H 86%30.00 inHg

6:00 AM

Light rain

80° 💧 0.03 in 💨 5 mph H 86%30.00 inHg

7:00 AM

Moderate rain

79° 💧 0.10 in 💨 6 mph H 88%30.00 inHg

8:00 AM

Moderate rain

80° 💧 0.09 in 💨 6 mph H 85%30.03 inHg

9:00 AM

Moderate rain

82° 💧 0.06 in 💨 6 mph H 83%30.03 inHg

10:00 AM

Light rain

81° 💧 0.04 in 💨 7 mph H 84%30.06 inHg

In Port St. Lucie and, more broadly, across the state of Florida: The rest of the day will feature a mix of sun and clouds with mild to warm temperatures ranging from 78 to 85 degrees Fahrenheit. There is a high chance of rain, with up to about 0.1 inches possible, and the likelihood of precipitation reaching nearly 98 percent. Winds will be light from the south at around 6 mph, with occasional gusts up to 10 mph. Overall, expect a warm and partly cloudy afternoon, with brief periods of rain possible.

15-Day Weather Outlook for Port St. Lucie

TomorrowTomorrow

Light rain 88°/76° 💧 0.25 in 💨 13 mph

Sunday, Aug 30Sun Aug 30

Moderate rain 89°/76° 💧 0.69 in 💨 11 mph

Monday, Aug 31Mon Aug 31

Light rain 89°/80° 💧 0.19 in 💨 13 mph

Tuesday, Sep 1Tue Sep 1

Moderate rain 82°/80° 💧 0.61 in 💨 10 mph

Wednesday, Sep 2Wed Sep 2

Light rain 89°/80° 💧 0.09 in 💨 13 mph

Thursday, Sep 3Thu Sep 3

Light rain 89°/79° 💧 0.13 in 💨 13 mph

Friday, Sep 4Fri Sep 4

Overcast 89°/80° 💧 None 💨 11 mph

Saturday, Sep 5Sat Sep 5

Mostly sunny 89°/79° 💧 None 💨 12 mph

Sunday, Sep 6Sun Sep 6

Sunny 90°/77° 💧 None 💨 9 mph

Monday, Sep 7Mon Sep 7

Light rain 91°/78° 💧 0.02 in 💨 10 mph

Tuesday, Sep 8Tue Sep 8

Light rain 91°/77° 💧 0.25 in 💨 9 mph

Wednesday, Sep 9Wed Sep 9

Light rain 92°/76° 💧 0.06 in 💨 9 mph

Thursday, Sep 10Thu Sep 10

Light rain 91°/77° 💧 0.01 in 💨 12 mph

Friday, Sep 11Fri Sep 11

Moderate rain 93°/76° 💧 0.37 in 💨 11 mph

Saturday, Sep 12Sat Sep 12

Moderate rain 91°/75° 💧 0.17 in 💨 10 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Port St. Lucie

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Port St. Lucie

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 11:00 AM

PM2.5 Fine particles Good 7,4µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 10,8µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 46,3µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 4,8µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Port St. Lucie

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 8,0Very high 😊Good

Tomorrow UV 7,0High 🙂Fair

Sunday UV 8,0Very high 😊Good

Monday UV 7,0High 😊Good

Tuesday UV 8,0Very high 😊Good

Wednesday UV 8,0Very high —Unavailable

Thursday UV 7,0High —Unavailable

Hourly UV index today

11:00 AMUV 8,0 12:00 PMUV 8,0 1:00 PMUV 8,0 2:00 PMUV 8,0 3:00 PMUV 7,0 4:00 PMUV 6,0 5:00 PMUV 7,0 6:00 PMUV 8,0 7:00 PMUV 6,0

Today's weather health advice Open today's recommendations.

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Port St. Lucie

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 5.53 Population: 232,491

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Forecast data for Port St. Lucie were last refreshed today at 10:27 AM. The current forecast period extends through 30/08/2026 at 8:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.