Hourly Weather Forecast - Mount Vernon, MD

12 AM
47°F
10%
7mph
SSW
Partly Cloudy
Humidity
88%
Feels like
43°F
Dew Point
44°F
1 AM
47°F
10%
7mph
SSW
Partly Cloudy
Humidity
89%
Feels like
43°F
Dew Point
44°F
2 AM
47°F
10%
7mph
SSW
Partly Cloudy
Humidity
90%
Feels like
44°F
Dew Point
44°F
3 AM
47°F
10%
7mph
SW
Mostly Cloudy
Humidity
91%
Feels like
44°F
Dew Point
45°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Weekend Weather Outlook

Weekend Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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