As of 10:48 PDT

Mill Plain, WA weather in March

59°

Mill Plain, Wednesday, 7 October, 10:48

Mostly clear. Feels like 59°. High 79°, low 50°.

Pressure30.06 inHg

Wind6.9 mph N

Humidity77%

Visibility1.2 mi

Dew point52°

See detailed hourly forecast

In March, Mill Plain, WA averages a high of 52.8° and a low of 37.2°. About 8.2 inches of precipitation fall over the month (19 wet days). The record high is 79° (2025) and the record low 15.1° (1971). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	50°	35.6°	60%	63.1° (1968)	15.1° (1971)
2	49.5°	35.6°	65%	65.5° (1986)	24.3° (1976)
3	49.5°	35.8°	73%	64.6° (1986)	18.1° (1989)
4	49.8°	35.8°	65%	64.9° (1986)	22.1° (2019)
5	50.7°	35.4°	60%	65.7° (1986)	23.4° (2019)
6	51.4°	34.7°	53%	66.4° (2007)	24.3° (2024)
7	51.3°	35.2°	52%	65.1° (2001)	22.1° (1974)
8	52.2°	35.4°	60%	71.2° (2004)	24.6° (1969)
9	52.2°	37.2°	58%	65.5° (1965)	24.1° (1969)
10	52°	37.8°	65%	71.2° (2005)	23.9° (1969)
11	53.1°	37.2°	55%	70.2° (2005)	25.9° (1960)
12	52.3°	37.6°	62%	68.7° (1992)	23.9° (1962)
13	52.5°	37.8°	68%	68.5° (2015)	25.2° (1962)
14	51.8°	37.9°	73%	69.4° (1994)	26.6° (1969)
15	52.9°	37.8°	58%	63° (2024)	26.2° (1977)
16	53.1°	37.2°	62%	70.3° (1972)	26.4° (1971)
17	52.9°	36.9°	57%	69.4° (2024)	24.4° (1971)
18	53.6°	37.9°	57%	70.3° (2024)	25.5° (1971)
19	54.5°	37.6°	52%	69.3° (1960)	25.5° (1965)
20	54.9°	37.9°	53%	69.8° (1960)	28.8° (1991)
21	54.1°	37.6°	55%	70° (1978)	27.7° (1966)
22	54.1°	37.8°	62%	69.1° (2022)	21.9° (1966)
23	53.6°	38.5°	68%	66.9° (1979)	27.5° (2012)
24	54°	37.9°	58%	68° (1960)	28.2° (1964)
25	53.6°	37.9°	62%	75.4° (2025)	28° (1996)
26	53.8°	37.6°	60%	79° (2025)	27° (1972)
27	53.6°	37.9°	60%	73.4° (1994)	28.6° (2008)
28	53.6°	38.5°	62%	70.9° (1994)	26.6° (1962)
29	55.4°	38.8°	53%	72.1° (2004)	28.4° (1967)
30	55.8°	38.5°	53%	72.7° (2013)	28.9° (2008)
31	55.4°	38.8°	55%	71.2° (1987)	27.3° (1971)