National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Manassas, Manassas Regional Airport/Harry P. Davis Field (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Overcast

33°F

1°C

Humidity 43%
Wind Speed N 8 mph
Barometer 30.26 in (1025.3 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 5 Dec 12:56 am EST
Extended Forecast for

Loch Lomond VA

Winter Weather Advisory December 5, 04:00am until December 5, 04:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Snow, mainly after 4am. Low around 22. East wind 5 to 7 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than one inch possible.

    Low: 22 °F

    Snow

  • Friday

    Friday: Snow, mainly before 8am. High near 35. Light east wind. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Snow then
    Slight Chance
    Snow

  • Friday Night

    Friday Night: Patchy fog before 1am, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Patchy Fog

  • Saturday

    Saturday: Partly sunny, with a high near 44. Calm wind.

    High: 44 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

Detailed Forecast

Overnight
Snow, mainly after 4am. Low around 22. East wind 5 to 7 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than one inch possible.
Friday
Snow, mainly before 8am. High near 35. Light east wind. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday Night
Patchy fog before 1am, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 22. Calm wind.
Saturday
Partly sunny, with a high near 44. Calm wind.
Saturday Night
Partly cloudy, with a low around 24. Calm wind.
Sunday
Partly sunny, with a high near 43.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Mostly sunny, with a high near 36.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Mostly sunny, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 48.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.
Thursday
A chance of rain. Partly sunny, with a high near 46. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Loch Lomond VA
 38.8°N 77.47°W (Elev. 148 ft)
Last Update:
12:53 am EST Dec 5, 2025
Forecast Valid:
12am EST Dec 5, 2025-6pm EST Dec 11, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation