As of 06:32 PDT

Roche Harbor, WA weather in August

48°

Roche Harbor, Thursday, 8 October, 06:32

Overcast. Feels like 48°. High 59°, low 48°.

Pressure30.09 inHg

Wind0 mph N

Humidity100%

Visibility0.1 mi

Dew point48°

See detailed hourly forecast

In August, Roche Harbor, WA averages a high of 63.8° and a low of 57°. About 0.9 inches of precipitation fall over the month (4 wet days). The record high is 81.9° (2023) and the record low 50° (1964). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	64°	56.8°	3%	78.3° (1965)	52.5° (2008)
2	63.7°	56.8°	8%	77.4° (2017)	53.4° (2023)
3	64°	57.2°	2%	77.4° (2017)	53.2° (2025)
4	64.6°	57.4°	5%	75.6° (2017)	53.6° (1964)
5	64.2°	57°	2%	74.7° (2021)	52.5° (1964)
6	63.9°	56.8°	12%	75.6° (2022)	53.1° (1973)
7	64.4°	57.2°	15%	75.4° (2022)	51.3° (1970)
8	64.8°	57.4°	7%	78.4° (2018)	50.7° (2025)
9	64.9°	57.6°	12%	76.8° (1981)	52.9° (2025)
10	64.8°	57.9°	8%	79.3° (2025)	52.9° (2011)
11	64.6°	57.6°	5%	77.9° (2025)	52.9° (1966)
12	64.8°	57.6°	8%	81.1° (2025)	53.4° (2011)
13	64.8°	57.7°	12%	78.8° (2021)	52.9° (1974)
14	64.4°	57.6°	10%	79.9° (2023)	52.5° (2020)
15	64.2°	57.4°	15%	81.9° (2023)	52° (1974)
16	64°	57.6°	15%	80.4° (2020)	53.1° (1969)
17	63.9°	57.4°	12%	77.7° (2022)	52.5° (1973)
18	64°	56.8°	10%	77.4° (2022)	51.8° (1973)
19	63.7°	57°	8%	75.2° (2016)	53.8° (1964)
20	63.3°	56.5°	15%	77.5° (2018)	52.5° (2025)
21	63°	56.3°	15%	76.8° (2018)	52.2° (2025)
22	63.1°	56.3°	18%	76.1° (2025)	52° (1960)
23	63.1°	56.7°	12%	78.6° (2025)	50.5° (1975)
24	63.1°	56.3°	12%	78.8° (2025)	50.7° (2021)
25	63°	56.5°	13%	76.3° (2025)	52° (1993)
26	63.5°	56.3°	20%	75.7° (2023)	52.7° (1960)
27	63.3°	56.5°	15%	75.9° (2023)	51.6° (1962)
28	63.1°	56.5°	18%	75° (2017)	50.9° (2024)
29	63.3°	56.5°	13%	72.5° (1967)	51.3° (1984)
30	62.4°	56.3°	15%	77.5° (2022)	50.7° (2020)
31	62.4°	56.3°	15%	73.9° (1987)	50° (1964)