S
M
T
W
T
F
S
26
50°
34°
27
49°
38°
28
50°
37°
29
51°
40°
30
52°
39°
1
53°
42°
2
54°
42°
3
54°
40°
4
53°
38°
5
53°
40°
6
52°
40°
7
51°
39°
8
53°
39°
9
52°
42°
10
53°
40°
11
55°
42°
12
53°
43°
13
51°
42°
14
53°
44°
15
54°
43°
16
53°
42°
17
54°
45°
18
52°
45°
19
52°
44°
20
54°
44°
21
56°
45°
22
52°
44°
23
53°
43°
24
53°
42°
25
52°
42°
26
53°
43°
27
56°
44°
28
57°
44°
29
55°
43°
30
54°
45°
31
56°
43°
1
56°
46°
2
57°
47°
3
57°
46°
4
56°
47°
5
59°
48°
6
60°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Furnace
Furnace's May 2026 forecast shows daily high temperatures ranging from 49° to 60°, with overnight lows between 34° and 49°. The average high for May is 54° with an average low of 43°. 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 Furnace. See also: June | July | August.
