As of 17:56 PDT

Union, OR weather in September

73°

Union, Tuesday, 6 October, 17:56

Clear. Feels like 71°. High 76°, low 45°.

Pressure30.03 inHg

Wind0.6 mph SE

Humidity32%

Visibility6.2 mi

Dew point41°

See detailed hourly forecast

In September, Union, OR averages a high of 73.3° and a low of 50°. About 1.2 inches of precipitation fall over the month (5 wet days). The record high is 100.6° (2022) and the record low 30.7° (1972). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	79°	54°	8%	94.3° (1967)	40.8° (2008)
2	78.4°	53.6°	15%	99° (2022)	41° (2008)
3	79°	54.1°	13%	97.7° (2017)	43.3° (1980)
4	79.2°	54°	8%	98.1° (2020)	39.4° (2000)
5	78.6°	54°	13%	95.4° (1988)	42.1° (2010)
6	77.5°	54°	22%	100.6° (2022)	41.5° (1996)
7	76.8°	53.4°	17%	94.8° (2021)	37.9° (1992)
8	75.7°	52.3°	18%	90.3° (1981)	39.2° (1978)
9	75.6°	52°	12%	93.4° (2021)	39.6° (1970)
10	75°	50.9°	22%	89.8° (2011)	39° (1972)
11	74.3°	51.8°	18%	90.3° (2011)	40.8° (1970)
12	73.8°	50.5°	12%	92.5° (2015)	36.1° (1970)
13	73.9°	50.2°	12%	90.3° (2020)	31.3° (1970)
14	74.1°	49.8°	15%	90.3° (2020)	35.4° (1970)
15	73.2°	50°	17%	90.5° (1995)	37.6° (1970)
16	72.7°	49.6°	17%	91.4° (2020)	32.4° (1965)
17	71.4°	49.1°	22%	91.6° (1981)	32.7° (1965)
18	70.9°	49.8°	28%	89.6° (1981)	35.6° (1965)
19	69.1°	48.9°	33%	87.4° (2008)	34.9° (1965)
20	68.2°	46.9°	27%	86.9° (2012)	33.3° (1983)
21	68.7°	46.8°	17%	87.4° (2014)	35.4° (1983)
22	70.2°	46°	15%	89.4° (1987)	31.5° (1968)
23	70.9°	47.1°	13%	91° (1987)	32.2° (2000)
24	71.4°	47.5°	17%	88.7° (2011)	31.6° (1984)
25	71.1°	48.2°	20%	87.3° (2024)	32.2° (1984)
26	70.2°	46.9°	23%	85.6° (2022)	34.9° (1972)
27	70°	46.6°	15%	87.6° (1963)	31.5° (1972)
28	70.5°	46.8°	18%	88.5° (1963)	31.8° (1999)
29	70.3°	46.9°	20%	85.5° (1963)	30.7° (1972)
30	68.7°	47.3°	23%	85.5° (2010)	31.8° (2019)