and then 
to Add to home screen Southern Maryland
Rise 6:00AM
Set 8:08PM
Reporting Station : St. Marys County Regional Airport, MD
There are
9 Weather Alerts
for your area.
9 Weather Alerts
for your area.
57°F
Low clouds. Cool.
- 100%
- 3 mphNE
-
100%
Humidity -
57°F
Dew Point -
57°F
Comfort Level -
10 mi
Visibility -
29.61 in
Barometric Pressure - Air Quality
Waxing crescent
Rise7:35AM
Set11:32PM
FRIDAY NIGHT
DCA / No delays
Air Quality Observations
| Station Name | Concentration | Category |
|---|---|---|
| Shenandoah NP | 73 ppb |  Moderate |
| Rockville | 42 ppb |  Good |
| South Carroll | 48 ppb | Good |
Air Quality Forecast
| Date | Pollutant | Concentration | Category |
|---|---|---|---|
| 08 May | Ozone | 43 ppb | Good |
| 09 May | Particulates smaller than 2.5 microns | 33 ppb | Good |
| 10 May | Particulates smaller than 2.5 microns | 28 ppb | Good |
| 11 May | Particulates smaller than 2.5 microns | 22 ppb | Good |
| 12 May | Particulates smaller than 2.5 microns | 22 ppb | Good |
| 13 May | Particulates smaller than 2.5 microns | n/a | Good |
| 14 May | Particulates smaller than 2.5 microns | n/a | Good |
Fredericksburg
Northern Virginia
Northern Virginia/DC
Rise 6:00AM
Set 8:08PM
Waxing crescent
Rise7:35AM
Set11:32PM
FRIDAY NIGHT
DCA / No delays
Extended Forecast
| Date | Category | Reason |
|---|---|---|
| 10 May Friday | Good |
precipitation, well-mixed atmosphere, low pressure |
| 11 May Saturday | Good |
precipitation, well-mixed atmosphere, low pressure |
| 12 May Sunday | Good |
precipitation, well-mixed atmosphere, low pressure |
| 13 May Monday | Good |
well-mixed atmosphere, low pressure |
| 14 May Tuesday | Good |
well-mixed atmosphere, low pressure |
| 15 May Wednesday | Good |
precipitation, well-mixed atmosphere, low pressure |
| 16 May Thursday | Good |
precipitation, well-mixed atmosphere, low pressure |
Detailed Forecast
| Date | Category | Reason |
|---|---|---|
| 10 May Night | Good |
well-mixed atmosphere, low pressure |
| 10 May Morning | Good |
precipitation, well-mixed atmosphere, low pressure |
| 10 May Afternoon | Good |
well-mixed atmosphere, low pressure |
| 10 May Evening | Good |
well-mixed atmosphere, low pressure |
| 11 May Night | Good |
precipitation, well-mixed atmosphere, low pressure |
| 11 May Morning | Good |
well-mixed atmosphere, low pressure |
| 11 May Afternoon | Good |
well-mixed atmosphere, low pressure |
| 11 May Evening | Good |
well-mixed atmosphere, low pressure |