S
M
T
W
T
F
S
1
78°
42°
2
65°
49°
3
61°
45°
4
77°
49°
5
80°
54°
6
83°
59°
7
82°
64°
8
72°
61°
9
80°
57°
10
84°
57°
11
86°
62°
12
69°
40°
13
66°
34°
14
78°
43°
15
73°
49°
16
65°
35°
17
49°
30°
18
53°
29°
19
67°
32°
20
76°
38°
21
84°
56°
22
86°
56°
23
85°
60°
24
66°
47°
25
66°
46°
26
81°
51°
27
85°
58°
28
67°
42°
29
68°
36°
30
75°
51°
31
82°
60°
1
85°
59°
2
83°
60°
3
83°
58°
4
80°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Washington
Washington's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in Washington. See also: April | May | June.