S
M
T
W
T
F
S
26
70°
36°
27
57°
48°
28
58°
47°
29
73°
44°
30
82°
43°
1
68°
52°
2
80°
51°
3
92°
50°
4
75°
54°
5
66°
55°
6
63°
54°
7
71°
51°
8
67°
49°
9
77°
44°
10
68°
51°
11
80°
52°
12
82°
51°
13
61°
50°
14
61°
49°
15
52°
46°
16
57°
43°
17
67°
39°
18
70°
44°
19
64°
50°
20
73°
48°
21
83°
52°
22
79°
51°
23
73°
48°
24
69°
49°
25
61°
46°
26
69°
47°
27
70°
46°
28
66°
44°
29
67°
46°
30
70°
47°
31
74°
50°
1
71°
48°
2
77°
53°
3
76°
51°
4
74°
49°
5
69°
46°
6
75°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Longview-Kelso
Longview-Kelso's May 2026 forecast shows daily high temperatures ranging from 61° to 83°, with overnight lows between 44° and 53°. The average high for May is 72° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Longview-Kelso. See also: June | July | August.
