S
M
T
W
T
F
S
27
60°
45°
28
59°
45°
29
59°
51°
30
61°
53°
1
60°
51°
2
62°
43°
3
60°
42°
4
59°
42°
5
57°
41°
6
57°
41°
7
57°
46°
8
Hist. Avg.
63°
42°
9
Hist. Avg.
63°
42°
10
Hist. Avg.
62°
41°
11
Hist. Avg.
62°
41°
12
Hist. Avg.
62°
41°
13
Hist. Avg.
61°
41°
14
Hist. Avg.
61°
41°
15
Hist. Avg.
60°
40°
16
Hist. Avg.
60°
40°
17
Hist. Avg.
60°
40°
18
Hist. Avg.
59°
40°
19
Hist. Avg.
59°
40°
20
Hist. Avg.
59°
40°
21
Hist. Avg.
58°
40°
22
Hist. Avg.
58°
39°
23
Hist. Avg.
58°
39°
24
Hist. Avg.
57°
39°
25
Hist. Avg.
57°
39°
26
Hist. Avg.
57°
39°
27
Hist. Avg.
56°
39°
28
Hist. Avg.
56°
39°
29
Hist. Avg.
56°
38°
30
Hist. Avg.
55°
38°
31
Hist. Avg.
55°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Union
Union's October 2026 forecast shows daily high temperatures ranging from 57° to 62°, with overnight lows between 41° and 53°. The average high for October is 59° with an average low of 45°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Union. See also: November | December | January.