As of 17:38 EDT

Port St. Lucie, FL weather in May

89°

Port St. Lucie, Sunday, 9 August, 17:38

Partly cloudy. Feels like 102°. High 91°, low 78°.

Pressure30.03 inHg

Wind7 mph SE

Humidity73%

Visibility6.2 mi

Dew point79°

See detailed hourly forecast

In May, Port St. Lucie, FL averages a high of 84.8° and a low of 70.8°. About 3.3 inches of precipitation fall over the month (12 wet days). The record high is 100.2° (2024) and the record low 56.1° (1992). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	82.6°	68.4°	30%	92.1° (2002)	56.1° (1992)
2	82.9°	68.5°	23%	92.8° (2002)	57.4° (1999)
3	84°	68.9°	33%	91.9° (2002)	60.1° (1992)
4	83.8°	69.1°	35%	91.4° (1975)	58.6° (2023)
5	83.7°	69.3°	28%	93.7° (2021)	60.8° (1981)
6	84.2°	68.9°	30%	94.1° (2020)	59.2° (1963)
7	83.5°	69.3°	23%	91.8° (2006)	56.1° (2017)
8	84.6°	69.1°	15%	93.6° (2022)	56.1° (1992)
9	85.3°	69.6°	27%	97.7° (2024)	59° (1992)
10	84.7°	70.3°	32%	99° (2024)	58.6° (1960)
11	84.7°	70.7°	33%	96.8° (2024)	63° (1961)
12	84.2°	70.7°	30%	94.5° (2017)	62.8° (1992)
13	84.7°	70.7°	32%	96.6° (2017)	62.8° (1960)
14	85.1°	70.9°	37%	96.1° (2024)	59.2° (1960)
15	85.3°	70.7°	53%	93.9° (2022)	63.5° (1960)
16	84.6°	70.9°	45%	93.7° (2022)	66° (1960)
17	84.9°	71.1°	42%	94.6° (2023)	61.3° (1973)
18	84.7°	71.4°	37%	99.7° (2024)	63.1° (1973)
19	84.6°	71.2°	45%	95° (2025)	65.5° (2006)
20	85.1°	71.2°	38%	94.8° (2025)	64.8° (1979)
21	84.9°	71.4°	35%	97° (2025)	66.2° (1994)
22	85.1°	72°	47%	92.7° (1973)	62.6° (1994)
23	84.9°	72°	42%	97° (2017)	61.7° (1994)
24	85.5°	72.3°	45%	97.9° (2017)	65.7° (1994)
25	85.1°	72°	48%	95.4° (2024)	66.9° (1967)
26	85.1°	72°	43%	95.4° (2024)	63.5° (1979)
27	86°	72.3°	52%	100.2° (2024)	65.1° (1979)
28	86°	72.5°	62%	99.3° (2024)	66.7° (2021)
29	85.8°	72.7°	57%	98.8° (2024)	68.7° (2023)
30	86°	72.9°	58%	92.8° (1973)	68.4° (1971)
31	85.8°	73°	50%	94.6° (2004)	67.3° (1984)