As of 07:53 PDT

Santiago, WA weather in May

54°

Santiago, Friday, 9 October, 07:53

Partly cloudy. Feels like 53°. High 62°, low 50°.

Pressure29.85 inHg

Wind10 mph W

Humidity95%

Visibility6.2 mi

Dew point52°

See detailed hourly forecast

In May, Santiago, WA averages a high of 55.7° and a low of 46.2°. About 4.5 inches of precipitation fall over the month (12 wet days). The record high is 86.4° (2023) and the record low 33.3° (2024). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	54.5°	43.9°	35%	72.7° (2014)	33.3° (2024)
2	53.8°	44.8°	60%	70.5° (2016)	35.1° (2024)
3	53.4°	44.4°	53%	72.5° (1992)	33.6° (1963)
4	54°	44.2°	52%	68.5° (1992)	36.5° (1962)
5	54.3°	44.6°	43%	72.1° (2021)	35.2° (2025)
6	54.5°	44.8°	40%	69.8° (1987)	37.2° (1985)
7	54.5°	44.8°	38%	73.9° (1987)	36.3° (2020)
8	54.7°	44.1°	37%	77° (2020)	34.3° (1999)
9	54.9°	44.4°	33%	79.2° (2020)	36.9° (1999)
10	55°	44.4°	33%	76.5° (2020)	35.4° (1970)
11	55.2°	45.5°	42%	74.1° (1997)	38.8° (2022)
12	55.4°	45.7°	37%	70.9° (2023)	37.2° (1985)
13	56.3°	46°	38%	80.2° (2023)	35.4° (2022)
14	56.1°	46.8°	45%	86.4° (2023)	35.8° (1964)
15	56.5°	46.6°	37%	77.5° (2006)	39.4° (1974)
16	56.1°	46.9°	33%	75.6° (2008)	38.1° (2003)
17	55.8°	46.6°	35%	72.3° (2008)	38.1° (2011)
18	55.6°	46.9°	38%	69.8° (1963)	41.4° (1965)
19	56.1°	46.8°	33%	69.1° (1961)	38.3° (2021)
20	55.6°	46.9°	33%	75.9° (1963)	37.4° (2022)
21	55.8°	46.4°	40%	73.8° (1963)	37.9° (1984)
22	56.3°	46.9°	40%	71.4° (2017)	39.7° (2022)
23	56.5°	47.3°	32%	70.7° (1993)	39.2° (1980)
24	56.8°	47.5°	35%	73.4° (1993)	40.3° (1975)
25	56.7°	47.7°	42%	69.4° (1993)	38.8° (1977)
26	56.8°	47.7°	43%	75° (2005)	39.7° (1973)
27	56.7°	48°	45%	73.6° (1972)	39.7° (1966)
28	57.2°	48.2°	42%	77.2° (1983)	41.5° (1976)
29	56.8°	48.2°	30%	69.3° (1983)	39.2° (2021)
30	57.4°	47.7°	33%	72° (1986)	41.2° (2022)
31	58.5°	48.2°	38%	70.2° (2021)	40.6° (2024)