As of 19:40 PDT

Prosser, WA weather in August

67°

Prosser, Tuesday, 6 October, 19:40

Clear. Feels like 65°. High 79°, low 50°.

Pressure30.03 inHg

Wind4.2 mph NE

Humidity47%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

In August, Prosser, WA averages a high of 90.1° and a low of 64.2°. About 0.3 inches of precipitation fall over the month (1 wet days). The record high is 111.2° (1961) and the record low 48.6° (1960). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	94.3°	66.9°	5%	108.3° (2009)	54° (1963)
2	93.6°	66.4°	3%	107.2° (2024)	53.4° (1964)
3	93.2°	66.4°	0%	104.7° (1961)	55.4° (1996)
4	93.9°	66.2°	2%	111.2° (1961)	55.8° (1996)
5	93.4°	66.4°	2%	104.9° (1990)	53.8° (2002)
6	91.9°	65.8°	5%	104.5° (1972)	55.4° (1996)
7	91.9°	65.3°	7%	106° (1972)	56.3° (2002)
8	92.3°	65.5°	2%	109.2° (1972)	55.6° (2025)
9	93.2°	65.8°	0%	107.8° (2018)	55° (1985)
10	93.2°	66°	3%	108.1° (2018)	57.2° (1964)
11	92.1°	65.5°	3%	106.7° (1971)	55.9° (1985)
12	92.3°	65.5°	2%	104.7° (2021)	55° (1969)
13	91.6°	65.8°	3%	104.9° (1992)	52° (1995)
14	91.8°	64.9°	5%	107.4° (2021)	55.9° (1995)
15	91.2°	65.5°	3%	108.7° (2023)	55.6° (1960)
16	89.8°	64.6°	5%	107.8° (2023)	53.1° (1976)
17	90°	63.7°	2%	109° (2008)	49.6° (1976)
18	89.8°	64°	2%	106° (2022)	50° (1995)
19	89.6°	64°	7%	102.7° (2022)	52° (1964)
20	88.7°	63.9°	12%	105.3° (2009)	53.1° (1968)
21	88.2°	63°	8%	100.8° (2006)	51.6° (1968)
22	87.3°	62.6°	7%	99.7° (1970)	48.6° (1960)
23	86.5°	62.2°	7%	100° (1970)	50.9° (2021)
24	86.4°	61.7°	7%	101.7° (2025)	49.6° (2024)
25	86.4°	61.5°	10%	103.3° (1996)	50.7° (1960)
26	87.4°	61.3°	2%	103.1° (1996)	50.5° (1993)
27	87.3°	62.4°	7%	101.5° (1986)	51.1° (1960)
28	87.3°	61.7°	3%	101.5° (2023)	50.7° (1960)
29	87.6°	62.6°	3%	100.2° (2017)	49.6° (1965)
30	85.8°	61.7°	8%	100.8° (2007)	50° (1966)
31	84.7°	60.6°	3%	101.7° (2022)	48.9° (1964)