S
M
T
W
T
F
S
1
77°
53°
2
78°
52°
3
80°
62°
4
81°
68°
5
82°
68°
6
82°
68°
7
80°
67°
8
77°
67°
9
80°
67°
10
82°
72°
11
82°
63°
12
64°
47°
13
70°
44°
14
74°
52°
15
78°
58°
16
59°
42°
17
55°
34°
18
66°
39°
19
74°
49°
20
76°
53°
21
77°
59°
22
78°
62°
23
80°
58°
24
80°
59°
25
81°
61°
26
79°
58°
27
83°
63°
28
71°
55°
29
80°
52°
30
82°
64°
31
83°
68°
1
83°
68°
2
82°
71°
3
85°
71°
4
83°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Lake Arthur
Lake Arthur'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 Lake Arthur. See also: April | May | June.