S
M
T
W
T
F
S
1
61°
50°
2
60°
49°
3
55°
50°
4
57°
48°
5
55°
45°
6
57°
40°
7
59°
43°
8
57°
49°
9
55°
47°
10
55°
40°
11
57°
37°
12
58°
44°
13
60°
46°
14
59°
50°
15
60°
46°
16
64°
42°
17
62°
44°
18
55°
46°
19
67°
42°
20
62°
44°
21
55°
48°
22
56°
43°
23
56°
48°
24
69°
46°
25
58°
49°
26
56°
43°
27
58°
39°
28
57°
44°
29
58°
44°
30
57°
45°
31
58°
47°
1
53°
45°
2
56°
43°
3
57°
37°
4
69°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Arcata
Arcata'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 Arcata. See also: April | May | June.