Honestly, if you’ve spent more than five minutes in Northern Virginia, you know the deal. One second you're looking at a clear sky over King Street, and the next, a "clipper" is rolling off the mountains and messing up everyone's afternoon commute.
Right now in Leesburg, things are feeling pretty bitey. As of late Sunday afternoon, January 18, 2026, the temperature is sitting at exactly 30°F. But that’s the "official" number. If you actually step outside, it feels like 23°F because of a steady 8 mph northwest wind. It's that classic Loudoun County damp cold that just sort of sinks into your bones.
Reading the Leesburg Weather Hourly Forecast Like a Local
Most people just glance at the icon on their phone and call it a day. Big mistake. In this part of the state, you have to watch the transition times. Today’s high of 35°F happened earlier, and we’re currently on a one-way slide down to a low of 22°F tonight.
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We’ve got a mostly cloudy ceiling right now. There’s a lingering 8% chance of snow through the evening, though the heavier stuff usually likes to hug the Blue Ridge further west. Humidity is hovering around 55%, which is actually relatively dry for us, keeping the air crisp rather than "soupy."
If you’re planning your Monday morning, keep in mind that the wind is expected to pick up. While today saw speeds around 12 mph, the overnight shift often brings those gusts that make the historic windows in downtown Leesburg rattle.
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The Blue Ridge Effect
Leesburg is in a weird spot geographically. We’re just east enough of the mountains to get "rain shadowed" sometimes, but we’re also right in the path of cold air damming. That’s a fancy way of saying cold air gets trapped against the hills and stays here longer than anyone wants.
- Current Temp: 30°F
- Wind Chill: 23°F
- Precipitation: Mostly cloudy with light snow flurries possible.
- Tonight's Low: 22°F
It’s actually kinda fascinating how much the terrain matters. If you’re over by the Leesburg Executive Airport, you might feel a completely different breeze than someone tucked away in a neighborhood near Ida Lee Park.
What to Actually Do With This Info
Look, 30 degrees isn't the end of the world, but with the northwest wind kicking up, it's not exactly patio weather at the local breweries. If you're heading out to the outlets or grabbing dinner, the "feels like" temp is the only number that matters.
Basically, the cloud cover is going to stick around for the next few hours before we see any clearing. That's actually a good thing for now—it acts like a blanket. Once those clouds break tonight, the heat escapes and that 22-degree low is going to hit hard.
Check your tire pressure. These 20-degree drops are notorious for triggering that annoying "low pressure" light on the dashboard. Also, if you have outdoor pets, tonight’s the night to bring them in or double-check their bedding. Tomorrow is looking sunny but significantly colder, so enjoy the "warmth" of 30 degrees while it lasts.
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Make sure your windshield wiper fluid is rated for sub-freezing. There’s nothing worse than trying to clear road salt and having the spray freeze instantly on the glass because you’re using the "summer" blue stuff. Stay warm out there.