Currently: 84 °F. Thunderstorms. Broken clouds. (Weather station: Broomfield / Jeffco, USA). See more current weatherOctober 2018 Weather in Boulder — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
16
22
28
34
40
46
52
58
64
70
76
82
Mon, Oct 1
Lo:43
12 am
Hi:45
2
Lo:45
6 am
Hi:55
2
Lo:57
12 pm
Hi:66
3
Lo:55
6 pm
Hi:63
4
Tue, Oct 2
Lo:54
12 am
Hi:61
2
Lo:54
6 am
Hi:72
2
Lo:72
12 pm
Hi:77
7
Lo:63
6 pm
Hi:73
4
Wed, Oct 3
Lo:57
12 am
Hi:70
5
Lo:68
6 am
Hi:81
18
Lo:79
12 pm
Hi:84
19
Lo:52
6 pm
Hi:73
10
Thu, Oct 4
Lo:48
12 am
Hi:52
4
Lo:48
6 am
Hi:57
9
Lo:57
12 pm
Hi:63
9
Lo:50
6 pm
Hi:59
3
Fri, Oct 5
Lo:45
12 am
Hi:54
3
Lo:48
6 am
Hi:73
2
Lo:52
12 pm
Hi:73
10
Lo:41
6 pm
Hi:46
6
Sat, Oct 6
Lo:37
12 am
Hi:41
4
Lo:37
6 am
Hi:45
3
Lo:50
12 pm
Hi:54
9
Lo:45
6 pm
Hi:50
3
Sun, Oct 7
Lo:37
12 am
Hi:46
11
Lo:37
6 am
Hi:46
9
Lo:45
12 pm
Hi:46
8
Lo:41
6 pm
Hi:43
8
Mon, Oct 8
Lo:37
12 am
Hi:41
8
Lo:37
6 am
Hi:37
7
Lo:37
12 pm
Hi:39
4
Lo:37
6 pm
Hi:39
3
Tue, Oct 9
Lo:36
12 am
Hi:37
6
Lo:36
6 am
Hi:37
6
Lo:36
12 pm
Hi:37
5
Lo:34
6 pm
Hi:37
6
Wed, Oct 10
Lo:32
12 am
Hi:34
4
Lo:32
6 am
Hi:34
4
Lo:34
12 pm
Hi:36
12
Lo:34
6 pm
Hi:36
3
Thu, Oct 11
Lo:34
12 am
Hi:34
3
Lo:34
6 am
Hi:37
2
Lo:39
12 pm
Hi:41
1
Lo:36
6 pm
Hi:39
2
Fri, Oct 12
Lo:34
12 am
Hi:39
3
Lo:34
6 am
Hi:50
6
Lo:55
12 pm
Hi:63
3
Lo:45
6 pm
Hi:59
4
Sat, Oct 13
Lo:41
12 am
Hi:46
3
Lo:41
6 am
Hi:59
1
Lo:59
12 pm
Hi:64
9
Lo:28
6 pm
Hi:57
19
Sun, Oct 14
Lo:23
12 am
Hi:28
12
Lo:21
6 am
Hi:21
7
Lo:23
12 pm
Hi:27
3
Lo:25
6 pm
Hi:27
5
Mon, Oct 15
Lo:18
12 am
Hi:25
3
Lo:19
6 am
Hi:39
4
Lo:43
12 pm
Hi:46
4
Lo:32
6 pm
Hi:36
5
Tue, Oct 16
Lo:32
12 am
Hi:36
2
Lo:34
6 am
Hi:52
1
Lo:52
12 pm
Hi:55
5
Lo:37
6 pm
Hi:50
5
Wed, Oct 17
Lo:34
12 am
Hi:39
3
Lo:37
6 am
Hi:55
5
Lo:55
12 pm
Hi:61
11
Lo:45
6 pm
Hi:54
8
Thu, Oct 18
Lo:36
12 am
Hi:45
7
Lo:39
6 am
Hi:54
1
Lo:63
12 pm
Hi:68
8
Lo:52
6 pm
Hi:57
12
Fri, Oct 19
Lo:50
12 am
Hi:54
11
Lo:50
6 am
Hi:64
11
Lo:63
12 pm
Hi:66
8
Lo:50
6 pm
Hi:59
5
Sat, Oct 20
Lo:41
12 am
Hi:50
2
Lo:45
6 am
Hi:64
1
Lo:66
12 pm
Hi:70
6
Lo:48
6 pm
Hi:64
2
Sun, Oct 21
Lo:48
12 am
Hi:55
0
Lo:48
6 am
Hi:70
2
Lo:68
12 pm
Hi:73
4
Lo:50
6 pm
Hi:66
7
Mon, Oct 22
Lo:46
12 am
Hi:54
1
Lo:48
6 am
Hi:66
1
Lo:64
12 pm
Hi:72
9
Lo:50
6 pm
Hi:63
5
Tue, Oct 23
Lo:45
12 am
Hi:52
5
Lo:45
6 am
Hi:52
4
Lo:57
12 pm
Hi:59
6
Lo:48
6 pm
Hi:55
2
Wed, Oct 24
Lo:48
12 am
Hi:52
6
Lo:48
6 am
Hi:57
2
Lo:59
12 pm
Hi:63
2
Lo:48
6 pm
Hi:55
8
Thu, Oct 25
Lo:48
12 am
Hi:54
11
Lo:50
6 am
Hi:63
7
Lo:61
12 pm
Hi:64
9
Lo:48
6 pm
Hi:57
8
Fri, Oct 26
Lo:46
12 am
Hi:52
8
Lo:46
6 am
Hi:64
4
Lo:66
12 pm
Hi:68
8
Lo:55
6 pm
Hi:59
15
Sat, Oct 27
Lo:52
12 am
Hi:59
9
Lo:52
6 am
Hi:66
18
Lo:68
12 pm
Hi:73
16
Lo:46
6 pm
Hi:64
6
Sun, Oct 28
Lo:41
12 am
Hi:45
1
Lo:41
6 am
Hi:63
5
Lo:68
12 pm
Hi:75
4
Lo:59
6 pm
Hi:72
6
Mon, Oct 29
Lo:50
12 am
Hi:64
4
Lo:48
6 am
Hi:68
1
Lo:70
12 pm
Hi:79
11
Lo:45
6 pm
Hi:68
12
Tue, Oct 30
Lo:39
12 am
Hi:43
6
Lo:39
6 am
Hi:41
6
Lo:34
12 pm
Hi:41
7
Lo:34
6 pm
Hi:34
6
Wed, Oct 31
Lo:34
12 am
Hi:34
3
Lo:34
6 am
Hi:43
5
Lo:45
12 pm
Hi:46
6
Lo:37
6 pm
Hi:41
2
Monday, October 1, 2018, 12:00 am — 6:00 am
45 / 43 °F
Low clouds.
Humidity: 93%
Barometer: 30.1 "Hg
N
Wind: 2.486 mph
High & Low Weather Summary for October 2018
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 84 °F (Oct 3, 1:46 pm) | 100% (Oct 6, 2:53 am) | 30.51 "Hg (Oct 6, 2:53 am) |
| Low | 18 °F (Oct 15, 5:54 am) | 10% (Oct 29, 3:50 pm) | 29.73 "Hg (Oct 13, 3:46 pm) |
| Average | 47 °F | 62% | 30.11 "Hg |
| * Reported Oct 1 12:11 am — Oct 31 11:54 pm, Boulder. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Boulder Weather History for October 1, 2018
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 12:11 am Mon, Oct 1 |  | 43 °F | Passing clouds. | 6 mph | ↑ | 93% | 30.09 "Hg | 10 mi |
| 12:35 am | | 43 °F | Passing clouds. | 5 mph | ↑ | 93% | 30.09 "Hg | 10 mi |
| 12:52 am | | 43 °F | Passing clouds. | 3 mph | ↑ | 93% | 30.09 "Hg | 10 mi |
| 1:12 am |  | 45 °F | Low clouds. | 3 mph | ↑ | 93% | 30.10 "Hg | 10 mi |
| 1:30 am | | 45 °F | Low clouds. | No wind | ↑ | 93% | 30.09 "Hg | 10 mi |
| 1:54 am | | 45 °F | Low clouds. | No wind | ↑ | 93% | 30.09 "Hg | 10 mi |
| 2:11 am | | 45 °F | Low clouds. | 3 mph | ↑ | 93% | 30.09 "Hg | 10 mi |
| 2:33 am | | 45 °F | Low clouds. | No wind | ↑ | 93% | 30.09 "Hg | 10 mi |
| 2:51 am | | 45 °F | Low clouds. | 3 mph | ↑ | 93% | 30.09 "Hg | 7 mi |
| 3:11 am | | 45 °F | Low clouds. | No wind | ↑ | 93% | 30.09 "Hg | 7 mi |
| 3:34 am | | 45 °F | Low clouds. | No wind | ↑ | 93% | 30.09 "Hg | 7 mi |
| 3:50 am | | 45 °F | Low clouds. | No wind | ↑ | 93% | 30.10 "Hg | 7 mi |
| 4:11 am | | 45 °F | Low clouds. | 7 mph | ↑ | 93% | 30.10 "Hg | 7 mi |
| 4:34 am | | 45 °F | Low clouds. | 6 mph | ↑ | 93% | 30.11 "Hg | 7 mi |
| 4:51 am | | 45 °F | Low clouds. | 5 mph | ↑ | 93% | 30.12 "Hg | 7 mi |
| 5:12 am | | 45 °F | Low clouds. | 3 mph | ↑ | 93% | 30.12 "Hg | 7 mi |
| 5:30 am | | 45 °F | Low clouds. | No wind | ↑ | 93% | 30.12 "Hg | 7 mi |
| 6:00 am |  | 45 °F | Fog. | No wind | ↑ | 93% | 30.13 "Hg | 5 mi |
| 6:47 am | | 45 °F | Fog. | No wind | ↑ | 93% | 30.15 "Hg | 3 mi |
| 7:49 am | | 46 °F | Fog. | No wind | ↑ | 87% | 30.16 "Hg | 3 mi |
| 8:57 am | | 46 °F | Fog. | 5 mph | ↑ | 93% | 30.17 "Hg | 7 mi |
| 9:47 am |  | 48 °F | Broken clouds. | 3 mph | ↑ | 87% | 30.18 "Hg | 7 mi |
| 10:47 am | | 52 °F | Broken clouds. | No wind | ↑ | 77% | 30.19 "Hg | 7 mi |
| 11:47 am | | 55 °F | Broken clouds. | 6 mph | ↑ | 67% | 30.17 "Hg | 15 mi |
| 12:45 pm | | 57 °F | Broken clouds. | No wind | ↑ | 63% | 30.15 "Hg | 15 mi |
| 1:50 pm | | 63 °F | Broken clouds. | No wind | ↑ | 49% | 30.12 "Hg | 15 mi |
| 2:50 pm | | 63 °F | Broken clouds. | 7 mph | ↑ | 52% | 30.12 "Hg | 15 mi |
| 3:45 pm | | 64 °F | Broken clouds. | No wind | ↑ | 49% | 30.13 "Hg | 15 mi |
| 4:45 pm | | 66 °F | Broken clouds. | 7 mph | ↑ | 46% | 30.13 "Hg | 15 mi |
| 5:45 pm | | 64 °F | Partly sunny. | 6 mph | ↑ | 49% | 30.14 "Hg | 15 mi |
| 6:45 pm | | 63 °F | Passing clouds. | 5 mph | ↑ | 52% | 30.14 "Hg | 15 mi |
| 7:45 pm | | 59 °F | Passing clouds. | 3 mph | ↑ | 63% | 30.14 "Hg | 15 mi |
| 8:45 pm | | 59 °F | Passing clouds. | 3 mph | ↑ | 63% | 30.15 "Hg | 15 mi |
| 9:45 pm | | 57 °F | Passing clouds. | 9 mph | ↑ | 67% | 30.15 "Hg | 15 mi |
| 10:12 pm |  | 55 °F | Clear. | 9 mph | ↑ | 63% | 30.14 "Hg | 10 mi |
| 10:30 pm | | 57 °F | Clear. | 6 mph | ↑ | 55% | 30.13 "Hg | 10 mi |
| 10:54 pm | | 59 °F | Clear. | No wind | ↑ | 55% | 30.13 "Hg | 10 mi |
| 11:12 pm | | 57 °F | Clear. | 3 mph | ↑ | 55% | 30.13 "Hg | 10 mi |
| 11:35 pm | | 59 °F | Clear. | No wind | ↑ | 51% | 30.13 "Hg | 10 mi |
| 11:53 pm | | 59 °F | Clear. | 7 mph | ↑ | 51% | 30.13 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||