S
M
T
W
T
F
S
27
30°
25°
28
34°
28°
29
40°
28°
30
40°
32°
31
43°
32°
1
43°
25°
2
45°
18°
3
44°
15°
4
28°
14°
5
26°
18°
6
26°
23°
7
34°
22°
8
34°
23°
9
33°
18°
10
35°
12°
11
31°
14°
12
25°
8°
13
28°
8°
14
21°
9°
15
21°
12°
16
25°
16°
17
29°
20°
18
35°
19°
19
36°
24°
20
34°
25°
21
37°
26°
22
37°
24°
23
36°
23°
24
34°
22°
25
32°
24°
26
36°
24°
27
35°
25°
28
36°
24°
29
36°
26°
30
Hist. Avg.
33°
19°
31
Hist. Avg.
33°
19°
1
Hist. Avg.
33°
19°
2
Hist. Avg.
34°
20°
3
Hist. Avg.
34°
20°
4
Hist. Avg.
34°
20°
5
Hist. Avg.
34°
20°
6
Hist. Avg.
34°
20°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Ashburn
Ashburn's January 2027 forecast shows daily high temperatures ranging from 21° to 45°, with overnight lows between 8° and 32°. The average high for January is 34° with an average low of 21°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Ashburn. See also: February | March | April.
