As of 21:52 PDT

Hillsboro, OR weather in May

72°

Hillsboro, Saturday, 8 August, 21:52

Clear. Feels like 71°. High 89°, low 58°.

Pressure30.03 inHg

Wind2 mph NW

Humidity50%

Visibility6.2 mi

Dew point52°

See detailed hourly forecast

In May, Hillsboro, OR averages a high of 65.5° and a low of 46.6°. About 2.6 inches of precipitation fall over the month (11 wet days). The record high is 100° (1983) and the record low 31.3° (2022). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	63°	43.5°	28%	81.3° (2014)	32.5° (2024)
2	62.4°	44.8°	45%	80.8° (2016)	31.6° (1964)
3	62.6°	44.2°	47%	83.7° (1992)	31.6° (1964)
4	63.3°	44.1°	45%	88.2° (1966)	35.2° (1961)
5	63.3°	45°	42%	88.2° (1992)	32.5° (1965)
6	63.3°	44.8°	33%	90° (1987)	32.2° (1965)
7	64.4°	44.6°	30%	91.9° (1987)	34.5° (2002)
8	64°	44.8°	35%	90.3° (1987)	34.9° (1999)
9	63.9°	44.6°	32%	84° (1987)	31.3° (2022)
10	63.9°	44.6°	30%	83.3° (2019)	31.8° (2022)
11	64.9°	45.5°	28%	84.7° (1997)	35.6° (2022)
12	64.9°	45.7°	25%	82.4° (2023)	35.4° (1985)
13	65.8°	46.2°	35%	86.2° (1973)	33.1° (2022)
14	66.4°	47.3°	37%	86° (2023)	36.9° (1964)
15	66°	47.1°	38%	89.4° (2006)	37.4° (2017)
16	66.2°	46.9°	30%	88.5° (2008)	37.2° (1966)
17	65.7°	46.9°	33%	86.2° (2023)	36.3° (2003)
18	65.5°	47.1°	30%	82° (2006)	36.3° (2003)
19	65.3°	46.9°	43%	82° (1963)	37.4° (2003)
20	65.7°	46.8°	33%	86.5° (1963)	37.8° (2022)
21	65.8°	46.8°	32%	84.4° (1988)	38.5° (1960)
22	66.2°	47.5°	33%	87.3° (2001)	33.4° (1960)
23	66.4°	48°	38%	87.4° (1983)	36.3° (1964)
24	67.5°	48.2°	32%	91.2° (1992)	39.6° (1972)
25	67.6°	48.6°	38%	83.3° (1986)	36.9° (1975)
26	66.7°	49.3°	32%	82° (2023)	39.2° (2011)
27	67.1°	48.9°	40%	89.2° (1983)	40.5° (1984)
28	67.8°	49.3°	35%	100° (1983)	40.6° (2011)
29	67.8°	49.1°	30%	88.5° (1983)	40.3° (1988)
30	68.7°	48.4°	30%	91.8° (1986)	40.5° (1988)
31	69.6°	49.3°	30%	91.9° (1986)	41.4° (1966)