Lowell to Impact Hawaii; Heat Persists in the South-Central U.S.

Hurricane Lowell is forecast to pass west of Kauai`s coastal waters tonight. Impacts such as high surf and heavy rain could impact all of the islands. Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley into this week with limited nighttime relief. Periods of moderate to heavy rainfall will be possible through Tuesday morning in the northern Rockies. Read More >

Current conditions at

Washington Manassas Airport (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Fair

60°F

16°C

Humidity 96%
Wind Speed Calm
Barometer 30.23 in (1024.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 7 Sep 11:56 pm EDT
Extended Forecast for

Loch Lomond VA

  • Overnight

    Overnight: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. South wind 3 to 5 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 70. South wind around 9 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 90. Chance of precipitation is 50%.

    High: 90 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers.  Mostly cloudy, with a low around 66. Chance of precipitation is 50%.

    Low: 66 °F

    Chance
    T-storms

  • Friday

    Friday: Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 58. Calm wind.
Tuesday
Mostly sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 61. South wind 3 to 5 mph.
Wednesday
Sunny, with a high near 89. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 70. South wind around 9 mph, with gusts as high as 20 mph.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Friday
Partly sunny, with a high near 83.
Friday Night
Mostly cloudy, with a low around 64.
Saturday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Loch Lomond VA
 38.78°N 77.47°W (Elev. 210 ft)
10:53 pm EDT Sep 7, 2026
12am EDT Sep 8, 2026-6pm EDT Sep 14, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database