Hourly Weather Forecast for Herndon, 20170, Virginia, United States - The Weather Channel | Weather.com
Hourly Weather Location Herndon, 20170, Virginia, United States · as of 9:09 pm GMT-4
Tonight's low temperature will be nearly the same as last night's
Friday, 14 August
Weather Details
| Time | Temperature | Conditions | Precipitation | Humidity | Wind | Pressure | Cloud Cover | Dew Point | UV Index | Visibility | Air Quality | Wind Gust |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21:15 | 77° | Mostly Cloudy Night | 2% | 81% | 4 mph | 30.1 | 59% | 71° | 0 of 11 | 10 mi | 64 - Moderate | -- |
| 21:30 | 76° | Mostly Cloudy Night | 2% | 82% | 4 mph | |||||||
| 21:45 | 76° | Mostly Cloudy Night | 7% | 83% | 4 mph | |||||||
| 22:00 | 76° | Partly Cloudy Night | 6% | 84% | 4 mph | |||||||
| 22:15 | 75° | Partly Cloudy Night | 4% | 85% | 4 mph | |||||||
| 23:00 | 75° | Partly Cloudy Night | 2% | 88% | 4 mph |
Saturday, 15 August
| Time | Temperature | Conditions | Precipitation | Humidity | Wind | Pressure | Cloud Cover | Dew Point | UV Index | Visibility | Air Quality | Wind Gust |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 00:00 | 74° | Partly Cloudy | 3% | 90% | 4 mph | |||||||
| 01:00 | 73° | Partly Cloudy | 3% | 94% | 3 mph | |||||||
| 02:00 | 72° | Partly Cloudy | 3% | 97% | 3 mph | |||||||
| 03:00 | 72° | Partly Cloudy | 3% | 97% | 3 mph | |||||||
| 04:00 | 71° | Partly Cloudy | 5% | 97% | 4 mph | |||||||
| 05:00 | 70° | Partly Cloudy | 8% | 97% | 4 mph | |||||||
| 06:00 | 69° | Partly Cloudy | 7% | 95% | 4 mph | |||||||
| 07:00 | 69° | Partly Cloudy | 7% | 95% | 3 mph | |||||||
| 08:00 | 72° | Partly Cloudy | 6% | 86% | 4 mph | |||||||
| 09:00 | 75° | Partly Cloudy | 4% | 78% | 4 mph |
Sunday, 16 August
| Time | Temperature | Conditions | Precipitation | Humidity | Wind | Pressure | Cloud Cover | Dew Point | UV Index | Visibility | Air Quality | Wind Gust |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 00:00 | 76° | Cloudy | 7% | 81% | 4 mph | |||||||
| 01:00 | 75° | Cloudy | 8% | 84% | 4 mph | |||||||
| 02:00 | 75° | Mostly Cloudy Night | 15% | 86% | 5 mph |
Air Quality Index
40
Good
Minimal impact.
Air Quality Index
Health & Activities
Grass pollen is moderate in your area.
Flu risk is very low in your area.