Port St. Lucie 7-day weather forecast

Written by:
September 8, 2025
ESOlex // Shutterstock

Port St. Lucie 7-day weather forecast

Stacker created the forecast for Port St. Lucie, Florida using data from OpenWeather. This week's high is 90 °F on Tuesday, while the low is 73 °F on Sunday. There are expected to be 0 sunny days and rain on 7 days this week.

There are currently no weather alerts.

Monday, September 8

- High of 86 °F, low of 76 °F (54% humidity)
- Partly cloudy with a 100% chance of rain (17 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 7:04 AM, sunset at 7:34 PM
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Tuesday, September 9

- High of 90 °F, low of 76 °F (57% humidity)
- Partly cloudy with a 100% chance of rain (19 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 7:04 AM, sunset at 7:33 PM
2 / 6
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Wednesday, September 10

- High of 90 °F, low of 76 °F (57% humidity)
- Partly cloudy with a 100% chance of rain (5 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Light breeze (7 mph wind)
- Sunrise at 7:04 AM, sunset at 7:32 PM
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Ryzhkov Oleksandr // Shutterstock

Thursday, September 11

- High of 86 °F, low of 77 °F (67% humidity)
- Partly cloudy with a 100% chance of rain (20 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 7:05 AM, sunset at 7:31 PM
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Valeriy Boyarskiy // Shutterstock

Friday, September 12

- High of 84 °F, low of 76 °F (67% humidity)
- Mostly cloudy with a 100% chance of rain (14 mm of rain)
- Moderate breeze (13 mph wind)
- Sunrise at 7:05 AM, sunset at 7:29 PM
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Leszek Glasner // Shutterstock

Saturday, September 13

- High of 84 °F, low of 76 °F (64% humidity)
- Overcast with a 100% chance of rain (7 mm of rain)
- Gentle breeze (12 mph wind)
- Sunrise at 7:06 AM, sunset at 7:28 PM
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6 / 6
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Sunday, September 14

- High of 85 °F, low of 73 °F (61% humidity)
- Partly cloudy with a 100% chance of rain (1 mm of rain)
- Gentle breeze (10 mph wind)
- Sunrise at 7:06 AM, sunset at 7:27 PM
- Last quarter moon

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