Thunderstorms and Heavy Rainfall from the Plains to the Mid-Atlantic

Severe thunderstorms producing damaging winds are most likely over parts of the Dakotas into Minnesota from this afternoon into the overnight, with other isolated storms producing hail or wind over the northern High Plains. In the Northern Plains into the Upper Great Lakes and Mid-Atlantic, heavy to excessive rain may bring flash and urban flooding through Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.72°NLon: 77.52°WElev: 194ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Loch Lomond VA

  • This Afternoon

    This Afternoon: Isolated showers, then scattered showers and thunderstorms after 2pm.  Mostly cloudy, with a high near 85. Light northeast wind.  Chance of precipitation is 40%.

    High: 85 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then scattered showers.  Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 70. Light northeast wind.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of showers before 2pm, then a slight chance of showers and thunderstorms after 5pm.  Patchy fog before 11am.  Otherwise, mostly cloudy, with a high near 82. Northeast wind around 5 mph.  Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers and
    Patchy Fog
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely after 2am.  Mostly cloudy, with a low around 70. Light south wind.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm.  High near 87. South wind 3 to 6 mph.  Chance of precipitation is 90%.

    High: 87 °F

    Showers
    Likely then
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Low around 70. Chance of precipitation is 80%.

    Low: 70 °F

    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm after 2pm.  Mostly sunny, with a high near 89. Chance of precipitation is 60%.

    High: 89 °F

    Mostly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am.  Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 87. Chance of precipitation is 50%.

    High: 87 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Isolated showers, then scattered showers and thunderstorms after 2pm. Mostly cloudy, with a high near 85. Light northeast wind. Chance of precipitation is 40%.
Tonight
Showers and thunderstorms likely before 2am, then scattered showers. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 70. Light northeast wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers before 2pm, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 82. Northeast wind around 5 mph. Chance of precipitation is 40%.
Wednesday Night
A slight chance of thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 70. Light south wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 87. South wind 3 to 6 mph. Chance of precipitation is 90%.
Thursday Night
Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Low around 70. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 30%.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 20%.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Loch Lomond VA
 38.78°N 77.47°W (Elev. 210 ft)
12:47 pm EDT Jul 7, 2026
1pm EDT Jul 7, 2026-6pm EDT Jul 13, 2026
 
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