and then 
to Add to home screen Northern Virginia
Rise 7:37AM
Set 6:09PM
Reporting Location : Ashburn, VA
There are
3 Weather Alerts
for your area.
3 Weather Alerts
for your area.
77°F
Clear. Warm.
- 52%
- 12 mphSSW
-
52%
Humidity -
59°F
Dew Point -
79°F
Comfort Level -
10 mi
Visibility -
30.05 in
Barometric Pressure - Air Quality
Waning crescent
Rise6:45AM
Set5:35PM
THURSDAY AFTERNOON
IAD / No delays
Air Quality Observations
| Station Name | Concentration | Category |
|---|---|---|
| Rockville | 55 ppb |  Moderate |
| Shenandoah NP | 52 ppb | Moderate |
| South Carroll | 52 ppb | Moderate |
| MORGANTOWN | 48 ppb |  Good |
| Frederick Airport | 53 ppb | Moderate |
| Hagerstown | 54 ppb | Moderate |
Air Quality Forecast
| Date | Pollutant | Concentration | Category |
|---|---|---|---|
| 29 Oct | Particulates smaller than 2.5 microns | 44 ppb | Good |
| 30 Oct | Particulates smaller than 2.5 microns | 56 ppb | Moderate |
| 31 Oct | Particulates smaller than 2.5 microns | 58 ppb | Moderate |
| 01 Nov | Particulates smaller than 2.5 microns | 44 ppb | Good |
| 02 Nov | Particulates smaller than 2.5 microns | 39 ppb | Good |
| 03 Nov | Particulates smaller than 2.5 microns | n/a | Good |
| 04 Nov | Particulates smaller than 2.5 microns | n/a | Good |
Northern Virginia/DC
Suburban DC
Maryland Piedmont
Rise 7:37AM
Set 6:09PM
Waning crescent
Rise6:45AM
Set5:35PM
THURSDAY AFTERNOON
IAD / No delays
Extended Forecast
| Date | Category | Reason |
|---|---|---|
| 31 Oct Thursday | Good |
well-mixed atmosphere, low pressure |
| 01 Nov Friday | Good |
well-mixed atmosphere |
| 02 Nov Saturday | Good |
well-mixed atmosphere |
| 03 Nov Sunday | Good |
well-mixed atmosphere, low pressure |
| 04 Nov Monday | Good |
well-mixed atmosphere, low pressure |
| 05 Nov Tuesday | Good |
well-mixed atmosphere, low pressure |
| 06 Nov Wednesday | Good |
precipitation, well-mixed atmosphere, low pressure |
Detailed Forecast
| Date | Category | Reason |
|---|---|---|
| 31 Oct Afternoon | Good |
well-mixed atmosphere, low pressure |
| 31 Oct Evening | Good |
well-mixed atmosphere, low pressure |
| 01 Nov Night | Good |
well-mixed atmosphere, low pressure |
| 01 Nov Morning | Good |
well-mixed atmosphere, low pressure |
| 01 Nov Afternoon | Good |
well-mixed atmosphere, low pressure |
| 01 Nov Evening | Good |
well-mixed atmosphere, low pressure |
| 02 Nov Night | Good |
well-mixed atmosphere |
| 02 Nov Morning | Good |
well-mixed atmosphere, low pressure |