S
M
T
W
T
F
S
26
88°
62°
27
91°
63°
28
91°
66°
29
92°
60°
30
91°
67°
1
92°
70°
2
89°
63°
3
82°
62°
4
85°
58°
5
89°
59°
6
95°
60°
7
94°
64°
8
95°
66°
9
96°
67°
10
95°
70°
11
95°
72°
12
84°
70°
13
87°
69°
14
89°
66°
15
94°
59°
16
96°
70°
17
95°
70°
18
94°
67°
19
95°
71°
20
95°
68°
21
95°
69°
22
95°
69°
23
95°
70°
24
92°
71°
25
92°
71°
26
94°
71°
27
91°
70°
28
88°
71°
29
89°
72°
30
84°
71°
31
85°
69°
1
87°
69°
2
87°
68°
3
86°
66°
4
87°
69°
5
85°
75°
6
86°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Richland
Richland's May 2026 forecast shows daily high temperatures ranging from 84° to 95°, with overnight lows between 66° and 75°. The average high for May is 89° with an average low of 70°. 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 Richland. See also: June | July | August.
