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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

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

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Fair

78°F

26°C

Humidity 45%
Wind Speed NW 7 G 18 mph
Barometer 29.93 in (1013.9 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Jun 9:56 am EDT
Extended Forecast for

Loch Lomond VA

  • Today

    Today: Mostly sunny, with a high near 87. West wind 9 to 13 mph, with gusts as high as 24 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. Northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 89. West wind 5 to 11 mph, with gusts as high as 21 mph.

    High: 89 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 67. Northwest wind around 6 mph becoming light and variable.

    Low: 67 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 91. South wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.

    High: 91 °F

    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 65. Chance of precipitation is 80%.

    Low: 65 °F

    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 87. West wind 9 to 13 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 62. Northwest wind 5 to 7 mph becoming calm after midnight.
Sunday
Mostly sunny, with a high near 89. West wind 5 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 67. Northwest wind around 6 mph becoming light and variable.
Monday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 91. South wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Monday Night
Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 65. Chance of precipitation is 80%.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
Sunny, with a high near 86.
Wednesday Night
A chance of showers after 2am. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Loch Lomond VA
 38.78°N 77.5°W (Elev. 220 ft)
Last Update:
7:52 am EDT Jun 20, 2026
Forecast Valid:
10am EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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