As of 05:45 EDT

Uniondale, NY weather in September

75°

Uniondale, Sunday, 9 August, 05:45

Clear. Feels like 76°. High 90°, low 74°.

Pressure29.94 inHg

Wind4 mph W

Humidity92%

Visibility6.2 mi

Dew point72°

See detailed hourly forecast

In September, Uniondale, NY averages a high of 72.7° and a low of 62.6°. About 4.0 inches of precipitation fall over the month (9 wet days). The record high is 90.5° (1983) and the record low 45.7° (1963). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	76.5°	66.4°	30%	87.8° (2010)	54.7° (2017)
2	75.7°	65.5°	30%	88.3° (1966)	54.1° (2017)
3	76.5°	66°	30%	86.4° (1993)	54.7° (1967)
4	76.8°	66.2°	25%	87.3° (2018)	55.2° (1997)
5	75.7°	65.8°	18%	89.4° (2023)	56.5° (2000)
6	75.4°	65.7°	37%	88.9° (2023)	55° (1984)
7	75.9°	65.1°	33%	89.6° (2023)	55° (1984)
8	75°	64.6°	23%	86.7° (2015)	53.6° (2024)
9	74.5°	64.4°	25%	86.7° (2016)	53.6° (2024)
10	74.8°	64.4°	32%	89.6° (1983)	54.9° (1975)
11	74.7°	63.7°	20%	90.5° (1983)	53.2° (1967)
12	74.1°	63.5°	23%	87.4° (2005)	53.6° (1967)
13	73.9°	63.5°	32%	84.4° (2021)	51.3° (1963)
14	74.1°	64°	38%	83.3° (2016)	50.9° (1975)
15	72.5°	62.6°	30%	81.5° (1993)	53.6° (1975)
16	72°	61.9°	33%	85.1° (1991)	50.7° (1984)
17	71.8°	61.9°	33%	85.8° (1991)	49.6° (1986)
18	72.1°	62.1°	32%	82.9° (1965)	49.5° (1990)
19	72°	60.8°	28%	85.8° (1983)	49.8° (2020)
20	71.4°	61.2°	27%	82.9° (1983)	50.4° (1993)
21	71.2°	61.2°	27%	81° (1980)	47.3° (1962)
22	71.1°	61°	40%	84.4° (1980)	47.8° (2020)
23	70.7°	60.3°	33%	86.4° (1970)	46.9° (1963)
24	69.1°	59°	28%	83.8° (2017)	45.7° (1963)
25	68.9°	59.5°	25%	83.3° (2010)	48.2° (1967)
26	69.8°	60.3°	40%	81° (2007)	51.3° (1966)
27	70.3°	60.1°	33%	82.8° (1998)	48.7° (1989)
28	69.4°	60.3°	45%	76.5° (2014)	47.5° (1989)
29	67.5°	58.6°	38%	77.9° (2019)	46.8° (2000)
30	66.6°	57.2°	32%	81° (1986)	47.7° (1991)