Port St. Lucie 7-day weather forecast

Written by:
Stacker
December 29, 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 79 °F on Sunday, while the low is 44 °F on Monday. There are expected to be 2 sunny days and rain on 5 days this week.

NWS Melbourne FL has issued a cold weather advisory until Monday at 09:00 AM.

Monday, January 19

- High of 61 °F, low of 44 °F (55% humidity)
- Partly sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 7:11 AM, sunset at 5:52 PM
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1 / 6
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Tuesday, January 20

- High of 68 °F, low of 54 °F (52% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 7:11 AM, sunset at 5:52 PM
2 / 6
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Wednesday, January 21

- High of 71 °F, low of 65 °F (63% humidity)
- Mostly cloudy with a 53% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 7:11 AM, sunset at 5:53 PM
3 / 6
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Thursday, January 22

- High of 73 °F, low of 68 °F (73% humidity)
- Overcast with a 90% chance of rain (2 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 7:11 AM, sunset at 5:54 PM
4 / 6
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Friday, January 23

- High of 74 °F, low of 70 °F (64% humidity)
- Partly sunny with a 32% chance of rain (1 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 7:10 AM, sunset at 5:55 PM
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Saturday, January 24

- High of 76 °F, low of 70 °F (63% humidity)
- Overcast with a 20% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 7:10 AM, sunset at 5:56 PM
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Sunday, January 25

- High of 79 °F, low of 68 °F (59% humidity)
- Fair with a 74% chance of rain (2 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (18 mph wind)
- Sunrise at 7:10 AM, sunset at 5:56 PM
- First quarter moon

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