Port St. Lucie 7-day weather forecast

Written by:
August 25, 2025
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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 93 °F on Tuesday, while the low is 75 °F on Monday. There is expected to be 1 sunny day and rain on 6 days this week.

There are currently no weather alerts.

Monday, August 25

- High of 87 °F, low of 75 °F (57% humidity)
- Partly cloudy with a 100% chance of rain (2 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 6:57 AM, sunset at 7:49 PM
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1 / 6
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Tuesday, August 26

- High of 93 °F, low of 75 °F (47% humidity)
- Partly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 6:58 AM, sunset at 7:48 PM
2 / 6
Valeriy Boyarskiy // Shutterstock

Wednesday, August 27

- High of 91 °F, low of 76 °F (54% humidity)
- Mostly cloudy with a 99% chance of rain (3 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:58 AM, sunset at 7:47 PM
3 / 6
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Thursday, August 28

- High of 90 °F, low of 76 °F (54% humidity)
- Partly cloudy with a 100% chance of rain (10 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 6:59 AM, sunset at 7:46 PM
4 / 6
Witaya Proadtayakogool // Shutterstock

Friday, August 29

- High of 91 °F, low of 76 °F (50% humidity)
- Sunny with a 100% chance of rain (7 mm of rain)
- Gentle breeze (9 mph wind)
- Sunrise at 6:59 AM, sunset at 7:45 PM
5 / 6
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Saturday, August 30

- High of 89 °F, low of 75 °F (56% humidity)
- Overcast with a 100% chance of rain (4 mm of rain)
- Gentle breeze (11 mph wind)
- Sunrise at 7:00 AM, sunset at 7:44 PM
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6 / 6
Andrzej Kubik // Shutterstock

Sunday, August 31

- High of 87 °F, low of 78 °F (63% humidity)
- Partly sunny with a 100% chance of rain (8 mm of rain)
- Gentle breeze (11 mph wind)
- Sunrise at 7:00 AM, sunset at 7:43 PM
- First quarter moon

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