Currently: 77 °F. Passing clouds. (Weather station: Reagan National Airport, USA). See more current weatherPast Weather in Town of Herndon — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
63
66
69
72
75
78
81
84
87
90
93
96
Fri, Aug 8
Lo:72
6 pm
Hi:79
6
Sat, Aug 9
Lo:66
12 am
Hi:70
4
Lo:66
6 am
Hi:81
6
Lo:82
12 pm
Hi:84
7
Lo:70
6 pm
Hi:81
4
Sun, Aug 10
Lo:64
12 am
Hi:72
2
Lo:64
6 am
Hi:82
4
Lo:84
12 pm
Hi:86
6
Lo:72
6 pm
Hi:82
6
Mon, Aug 11
Lo:70
12 am
Hi:72
5
Lo:72
6 am
Hi:81
6
Lo:82
12 pm
Hi:88
9
Lo:77
6 pm
Hi:84
11
Tue, Aug 12
Lo:75
12 am
Hi:75
6
Lo:75
6 am
Hi:82
5
Lo:88
12 pm
Hi:90
11
Lo:79
6 pm
Hi:88
7
Wed, Aug 13
Lo:77
12 am
Hi:79
6
Lo:77
6 am
Hi:84
9
Lo:79
12 pm
Hi:88
9
Lo:75
6 pm
Hi:79
4
Thu, Aug 14
Lo:73
12 am
Hi:75
4
Lo:75
6 am
Hi:88
7
Lo:79
12 pm
Hi:93
10
Lo:77
6 pm
Hi:81
2
Fri, Aug 15
Lo:75
12 am
Hi:79
4
Lo:75
6 am
Hi:90
6
Lo:88
12 pm
Hi:91
6
Lo:81
6 pm
Hi:88
7
Sat, Aug 16
Lo:77
12 am
Hi:79
5
Lo:77
6 am
Hi:84
2
Lo:88
12 pm
Hi:91
7
Lo:79
6 pm
Hi:86
9
Sun, Aug 17
Lo:75
12 am
Hi:79
9
Lo:75
6 am
Hi:86
7
Lo:90
12 pm
Hi:95
11
Lo:77
6 pm
Hi:88
8
Mon, Aug 18
Lo:73
12 am
Hi:77
11
Lo:73
6 am
Hi:75
14
Lo:70
12 pm
Hi:73
14
Lo:68
6 pm
Hi:70
11
Tue, Aug 19
Lo:66
12 am
Hi:70
9
Lo:66
6 am
Hi:70
11
Lo:70
12 pm
Hi:73
10
Lo:68
6 pm
Hi:72
9
Wed, Aug 20
Lo:68
12 am
Hi:70
7
Lo:68
6 am
Hi:73
6
Lo:73
12 pm
Hi:82
4
Lo:75
6 pm
Hi:81
12
Thu, Aug 21
Lo:68
12 am
Hi:73
16
Lo:66
6 am
Hi:70
16
Lo:68
12 pm
Hi:73
12
Lo:70
6 pm
Hi:73
9
Fri, Aug 22
Lo:68
12 am
Hi:70
4
Lo:70
6 am
Hi:81
5
Lo:81
12 pm
Hi:84
6
Lo:70
6 pm
Hi:79
9
Sat, Aug 23
Lo:64
12 am
Hi:70
7
Lo:64
6 am
Hi:79
9
Lo:82
12 pm
Hi:84
11
Lo:81
6 pm
Hi:81
11
Friday, August 8, 2025, 6:00 pm — 12:00 am
79 / 72 °F
Passing clouds.
Humidity: 63%
Barometer: 30.2 "Hg
E
Wind: 6.214 mph
Town of Herndon Temperature Yesterday
Maximum temperature yesterday: 85 °F (at 3:52 pm)
Minimum temperature yesterday: 68 °F (at 2:52 am)
Average temperature yesterday: 75 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 95 °F (Aug 17, 4:52 pm) | 96% (Aug 20, 5:06 am) | 30.26 "Hg (Aug 20, 5:06 am) |
| Low | 64 °F (Aug 10, 5:52 am) | 27% (Aug 9, 2:52 pm) | 29.83 "Hg (Aug 13, 6:52 pm) |
| Average | 77 °F | 75% | 30.04 "Hg |
| * Reported Aug 8 6:52 pm — Aug 23 6:52 pm, Town of Herndon. 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
Town of Herndon Weather History for the Previous 24 Hours
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 6:52 pm Sat, Aug 23 |  | 80 °F | Scattered clouds. | 10 mph | ↑ | 49% | 29.97 "Hg | 10 mi |
| 5:52 pm | | 83 °F | Passing clouds. | 14 mph | ↑ | 44% | 29.98 "Hg | 10 mi |
| 4:52 pm | | 84 °F | Passing clouds. | 13 mph | ↑ | 37% | 29.98 "Hg | 10 mi |
| 3:52 pm | | 85 °F | Passing clouds. | 10 mph | ↑ | 36% | 30.00 "Hg | 10 mi |
| 2:52 pm | | 84 °F | Passing clouds. | 8 mph | ↑ | 40% | 30.02 "Hg | 10 mi |
| 1:52 pm | | 83 °F | Passing clouds. | 10 mph | ↑ | 43% | 30.04 "Hg | 10 mi |
| 12:52 pm | | 82 °F | Passing clouds. | 12 mph | ↑ | 40% | 30.06 "Hg | 10 mi |
| 11:52 am | | 79 °F | Passing clouds. | 12 mph | ↑ | 50% | 30.07 "Hg | 10 mi |
| 10:52 am | | 77 °F | Passing clouds. | 10 mph | ↑ | 56% | 30.08 "Hg | 10 mi |
| 9:52 am | | 74 °F | Passing clouds. | 10 mph | ↑ | 67% | 30.09 "Hg | 10 mi |
| 8:52 am | | 71 °F | Passing clouds. | 8 mph | ↑ | 73% | 30.10 "Hg | 10 mi |
| 7:52 am | | 68 °F | Passing clouds. | 8 mph | ↑ | 82% | 30.10 "Hg | 10 mi |
| 6:52 am | | 65 °F | Passing clouds. | 5 mph | ↑ | 87% | 30.09 "Hg | 8 mi |
| 5:52 am | | 64 °F | Passing clouds. | 6 mph | ↑ | 87% | 30.09 "Hg | 9 mi |
| 4:52 am |  | 65 °F | Clear. | 6 mph | ↑ | 81% | 30.08 "Hg | 10 mi |
| 3:52 am | | 66 °F | Passing clouds. | 5 mph | ↑ | 78% | 30.08 "Hg | 10 mi |
| 2:52 am | | 66 °F | Clear. | 7 mph | ↑ | 78% | 30.09 "Hg | 9 mi |
| 1:52 am | | 68 °F | Clear. | 10 mph | ↑ | 73% | 30.08 "Hg | 10 mi |
| 12:52 am | | 69 °F | Passing clouds. | 8 mph | ↑ | 66% | 30.09 "Hg | 10 mi |
| 11:52 pm Fri, Aug 22 | | 69 °F | Clear. | 7 mph | ↑ | 59% | 30.09 "Hg | 10 mi |
| 10:52 pm | | 71 °F | Clear. | 7 mph | ↑ | 55% | 30.08 "Hg | 10 mi |
| 9:52 pm | | 73 °F | Clear. | 8 mph | ↑ | 51% | 30.06 "Hg | 10 mi |
| 8:52 pm | | 74 °F | Clear. | 10 mph | ↑ | 52% | 30.05 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||