Currently: 90 °F. Passing clouds. (Weather station: Broomfield / Jeffco, USA). See more current weatherJuly 2018 Weather in Boulder — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
49
54
59
64
69
74
79
84
89
94
99
Sun, Jul 1
Lo:50
12 am
Hi:55
2
Lo:52
6 am
Hi:75
2
Lo:79
12 pm
Hi:88
4
Lo:70
6 pm
Hi:86
5
Mon, Jul 2
Lo:63
12 am
Hi:68
6
Lo:63
6 am
Hi:84
4
Lo:86
12 pm
Hi:93
6
Lo:73
6 pm
Hi:90
14
Tue, Jul 3
Lo:64
12 am
Hi:72
5
Lo:64
6 am
Hi:90
4
Lo:84
12 pm
Hi:93
12
Lo:72
6 pm
Hi:84
8
Wed, Jul 4
Lo:61
12 am
Hi:70
2
Lo:64
6 am
Hi:81
6
Lo:84
12 pm
Hi:90
14
Lo:64
6 pm
Hi:81
7
Thu, Jul 5
Lo:63
12 am
Hi:68
9
Lo:63
6 am
Hi:77
11
Lo:70
12 pm
Hi:82
8
Lo:64
6 pm
Hi:68
12
Fri, Jul 6
Lo:59
12 am
Hi:64
5
Lo:59
6 am
Hi:77
1
Lo:81
12 pm
Hi:91
4
Lo:70
6 pm
Hi:88
4
Sat, Jul 7
Lo:64
12 am
Hi:70
3
Lo:68
6 am
Hi:90
6
Lo:81
12 pm
Hi:99
12
Lo:72
6 pm
Hi:82
4
Sun, Jul 8
Lo:68
12 am
Hi:73
7
Lo:72
6 am
Hi:91
1
Lo:93
12 pm
Hi:97
12
Lo:73
6 pm
Hi:88
4
Mon, Jul 9
Lo:66
12 am
Hi:73
2
Lo:68
6 am
Hi:88
4
Lo:91
12 pm
Hi:93
6
Lo:75
6 pm
Hi:93
8
Tue, Jul 10
Lo:63
12 am
Hi:73
5
Lo:68
6 am
Hi:86
7
Lo:91
12 pm
Hi:99
7
Lo:79
6 pm
Hi:93
11
Wed, Jul 11
Lo:70
12 am
Hi:75
8
Lo:70
6 am
Hi:90
5
Lo:91
12 pm
Hi:95
8
Lo:75
6 pm
Hi:90
4
Thu, Jul 12
Lo:68
12 am
Hi:73
9
Lo:68
6 am
Hi:81
11
Lo:77
12 pm
Hi:84
13
Lo:68
6 pm
Hi:79
6
Fri, Jul 13
Lo:59
12 am
Hi:66
6
Lo:61
6 am
Hi:81
6
Lo:82
12 pm
Hi:88
7
Lo:72
6 pm
Hi:86
6
Sat, Jul 14
Lo:64
12 am
Hi:72
2
Lo:68
6 am
Hi:84
4
Lo:88
12 pm
Hi:95
6
Lo:75
6 pm
Hi:93
10
Sun, Jul 15
Lo:68
12 am
Hi:77
9
Lo:66
6 am
Hi:72
17
Lo:63
12 pm
Hi:66
11
Lo:61
6 pm
Hi:63
2
Mon, Jul 16
Lo:59
12 am
Hi:61
2
Lo:59
6 am
Hi:73
2
Lo:77
12 pm
Hi:86
4
Lo:70
6 pm
Hi:81
4
Tue, Jul 17
Lo:63
12 am
Hi:66
9
Lo:63
6 am
Hi:77
3
Lo:81
12 pm
Hi:84
7
Lo:68
6 pm
Hi:77
4
Wed, Jul 18
Lo:63
12 am
Hi:70
7
Lo:64
6 am
Hi:90
7
Lo:91
12 pm
Hi:93
9
Lo:73
6 pm
Hi:91
8
Thu, Jul 19
Lo:66
12 am
Hi:73
6
Lo:66
6 am
Hi:90
4
Lo:95
12 pm
Hi:97
6
Lo:75
6 pm
Hi:97
11
Fri, Jul 20
Lo:68
12 am
Hi:75
3
Lo:68
6 am
Hi:95
4
Lo:93
12 pm
Hi:95
11
Lo:77
6 pm
Hi:91
7
Sat, Jul 21
Lo:68
12 am
Hi:77
2
Lo:70
6 am
Hi:88
6
Lo:82
12 pm
Hi:91
7
Lo:73
6 pm
Hi:95
9
Sun, Jul 22
Lo:66
12 am
Hi:79
4
Lo:77
6 am
Hi:91
7
Lo:70
12 pm
Hi:91
14
Lo:64
6 pm
Hi:75
7
Mon, Jul 23
Lo:64
12 am
Hi:68
2
Lo:66
6 am
Hi:75
3
Lo:66
12 pm
Hi:77
7
Lo:63
6 pm
Hi:66
6
Tue, Jul 24
Lo:61
12 am
Hi:64
4
Lo:64
6 am
Hi:77
1
Lo:79
12 pm
Hi:86
5
Lo:70
6 pm
Hi:73
7
Wed, Jul 25
Lo:61
12 am
Hi:72
4
Lo:63
6 am
Hi:77
9
Lo:72
12 pm
Hi:81
6
Lo:59
6 pm
Hi:63
4
Thu, Jul 26
Lo:59
12 am
Hi:63
7
Lo:59
6 am
Hi:72
8
Lo:75
12 pm
Hi:81
6
Lo:59
6 pm
Hi:79
8
Fri, Jul 27
Lo:59
12 am
Hi:61
6
Lo:59
6 am
Hi:75
3
Lo:70
12 pm
Hi:79
14
Lo:63
6 pm
Hi:70
4
Sat, Jul 28
Lo:59
12 am
Hi:61
8
Lo:59
6 am
Hi:72
3
Lo:72
12 pm
Hi:75
9
Lo:63
6 pm
Hi:68
6
Sun, Jul 29
Lo:57
12 am
Hi:63
9
Lo:57
6 am
Hi:64
2
Lo:68
12 pm
Hi:77
5
Lo:61
6 pm
Hi:66
8
Mon, Jul 30
Lo:55
12 am
Hi:61
3
Lo:55
6 am
Hi:73
9
Lo:73
12 pm
Hi:77
7
Lo:63
6 pm
Hi:75
7
Tue, Jul 31
Lo:54
12 am
Hi:61
4
Lo:55
6 am
Hi:77
4
Lo:82
12 pm
Hi:86
9
Lo:70
6 pm
Hi:82
1
High & Low Weather Summary for July 2018
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 99 °F (Jul 7, 3:47 pm) | 100% (Jul 15, 6:45 pm) | 30.57 "Hg (Jul 15, 6:45 pm) |
| Low | 50 °F (Jul 1, 2:30 am) | 9% (Jul 19, 2:45 pm) | 29.97 "Hg (Jul 2, 6:45 pm) |
| Average | 71 °F | 52% | 30.25 "Hg |
| * Reported Jul 1 12:12 am — Jul 31 11:53 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 July 1, 2018
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 12:12 am Sun, Jul 1 |  | 54 °F | Clear. | 3 mph | ↑ | 88% | 30.16 "Hg | 10 mi |
| 12:30 am | | 55 °F | Clear. | 3 mph | ↑ | 82% | 30.16 "Hg | 10 mi |
| 12:52 am | | 55 °F | Clear. | No wind | ↑ | 82% | 30.16 "Hg | 10 mi |
| 1:12 am | | 54 °F | Clear. | 3 mph | ↑ | 88% | 30.16 "Hg | 10 mi |
| 1:30 am | | 54 °F | Clear. | No wind | ↑ | 88% | 30.16 "Hg | 10 mi |
| 2:13 am | | 52 °F | Clear. | 3 mph | ↑ | 94% | 30.18 "Hg | 10 mi |
| 2:30 am | | 50 °F | Clear. | 7 mph | ↑ | 94% | 30.18 "Hg | 10 mi |
| 2:54 am | | 52 °F | Clear. | 8 mph | ↑ | 94% | 30.19 "Hg | 10 mi |
| 3:29 am | | 52 °F | Clear. | No wind | ↑ | 82% | 30.19 "Hg | 10 mi |
| 3:51 am | | 52 °F | Clear. | 3 mph | ↑ | 82% | 30.19 "Hg | 10 mi |
| 4:11 am | | 52 °F | Clear. | No wind | ↑ | 82% | 30.20 "Hg | 10 mi |
| 4:34 am | | 54 °F | Clear. | 5 mph | ↑ | 72% | 30.19 "Hg | 10 mi |
| 4:51 am | | 52 °F | Clear. | No wind | ↑ | 77% | 30.20 "Hg | 10 mi |
| 5:12 am | | 52 °F | Clear. | 3 mph | ↑ | 72% | 30.20 "Hg | 10 mi |
| 5:30 am | | 50 °F | Clear. | 3 mph | ↑ | 76% | 30.20 "Hg | 10 mi |
| 5:53 am |  | 52 °F | Sunny. | No wind | ↑ | 72% | 30.20 "Hg | 10 mi |
| 5:59 am | | 52 °F | Sunny. | No wind | ↑ | 72% | 30.20 "Hg | 10 mi |
| 6:45 am | | 55 °F | Sunny. | No wind | ↑ | 67% | 30.19 "Hg | 20 mi |
| 7:45 am | | 59 °F | Sunny. | 5 mph | ↑ | 63% | 30.19 "Hg | 30 mi |
| 8:45 am | | 64 °F | Sunny. | 3 mph | ↑ | 49% | 30.18 "Hg | 30 mi |
| 9:45 am | | 68 °F | Sunny. | 7 mph | ↑ | 49% | 30.15 "Hg | 30 mi |
| 10:45 am | | 70 °F | Sunny. | No wind | ↑ | 46% | 30.14 "Hg | 30 mi |
| 11:45 am | | 75 °F | Sunny. | 3 mph | ↑ | 31% | 30.13 "Hg | 30 mi |
| 12:45 pm | | 79 °F | Passing clouds. | 6 mph | ↑ | 30% | 30.11 "Hg | 30 mi |
| 1:50 pm |  | 82 °F | Pleasantly warm. | No wind | ↑ | 23% | 30.09 "Hg | N/A |
| 2:48 pm | | 84 °F | Passing clouds. | 6 mph | ↑ | 19% | 30.08 "Hg | 30 mi |
| 3:48 pm | | 86 °F | Passing clouds. | 3 mph | ↑ | 18% | 30.07 "Hg | 30 mi |
| 4:48 pm | | 88 °F | Passing clouds. | 5 mph | ↑ | 16% | 30.07 "Hg | 30 mi |
| 5:48 pm | | 88 °F | Passing clouds. | 5 mph | ↑ | 16% | 30.06 "Hg | 35 mi |
| 6:45 pm | | 86 °F | Passing clouds. | 6 mph | ↑ | 15% | 30.07 "Hg | 35 mi |
| 7:47 pm | | 82 °F | Passing clouds. | 12 mph | ↑ | 23% | 30.08 "Hg | 35 mi |
| 8:47 pm |  | 79 °F | Passing clouds. | 5 mph | ↑ | 26% | 30.10 "Hg | 35 mi |
| 10:12 pm | | 73 °F | Clear. | 9 mph | ↑ | 31% | 30.13 "Hg | 10 mi |
| 10:30 pm | | 73 °F | Clear. | 9 mph | ↑ | 31% | 30.13 "Hg | 10 mi |
| 10:54 pm | | 72 °F | Clear. | 6 mph | ↑ | 33% | 30.13 "Hg | 10 mi |
| 11:12 pm | | 72 °F | Clear. | No wind | ↑ | 33% | 30.13 "Hg | 10 mi |
| 11:30 pm | | 70 °F | Clear. | No wind | ↑ | 35% | 30.13 "Hg | 10 mi |
| 11:53 pm | | 72 °F | Clear. | No wind | ↑ | 33% | 30.12 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||