Honestly, if you live in Montgomery County, you already know that the sky over Gaithersburg has a mind of its own. One minute you’re looking at a dusting of snow, and the next, the wind is whipping down I-270 like it’s trying to win a race. Looking at the gaithersburg md 10 day weather forecast, it’s clear we’re in the thick of a classic Maryland January stretch. It’s not just "cold"—it’s that specific kind of damp, biting chill that makes you question why you didn't buy a heavier coat in November.
Right now, as of Sunday, January 18, 2026, we’re sitting at 34°F. It feels more like 26°F because of a 11 mph northwest wind. If you stepped outside this morning, you probably noticed the light snow. It’s expected to persist through the day with a 100% chance of precipitation before things clear up tonight.
The Immediate Outlook: Shifting Skies and Sharp Drops
The next few days are going to be a bit of a rollercoaster. Tomorrow, Monday, January 19, looks beautiful but deceptive. We’re hitting a high of 38°F with full sun. Sounds nice, right? Well, the low is going to plummet to 17°F. If you’re heading out for MLK Day events, keep in mind that the wind will be coming from the southwest at 14 mph, which usually keeps the air feeling much crisper than the thermometer suggests.
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Tuesday is when the real "deep freeze" settles in. The high won't even break freezing, topping out at a measly 26°F. By Wednesday and Thursday, we get a slight reprieve. Highs will crawl back up toward 38°F and 40°F, respectively. It’s a messy mix of partly sunny skies and humidity hovering around 33% to 49%, which is actually quite dry for our area.
Mid-Week Transitions
Basically, Wednesday through Friday is your window to get stuff done. Whether that’s running errands at Rio or finally clearing the dead leaves out of the gutters, do it then.
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- Wednesday, Jan 21: High 38°F / Low 16°F. Mostly cloudy at night.
- Thursday, Jan 22: High 40°F / Low 22°F. The warmest day of the week.
- Friday, Jan 23: High 35°F / Low 21°F. Expect some clouds to roll back in.
The Storm on the Horizon
The end of the 10-day window is where things get interesting. Historically, late January is the prime time for "big" events in Maryland, and 2026 is holding true to form. Saturday, January 24, remains mostly cloudy with a high of 32°F, but the pressure starts dropping.
Sunday, January 25, brings snow showers with a 45% chance of accumulation overnight. But the real headline in the gaithersburg md 10 day weather forecast is Monday, January 26. We are currently looking at a heavy snow storm with a 75% chance of significant precipitation. Temperatures will stay locked between 28°F and 16°F. This isn't the kind of snow that melts when it hits the pavement; it’s the kind that sticks and stays.
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Why Gaithersburg Weather Is So Unpredictable
People always ask why the forecast changes so fast here. It’s the geography. We’re caught between the Appalachian mountains to the west and the Atlantic to the east. When a "clipper" system comes down from the north, like the one we're seeing today, it brings that dry, powdery snow. But when we get a coastal system—like the one projected for next Monday—the moisture from the ocean hits that cold air, and that’s how we end up with a foot of the white stuff.
Experts from the National Weather Service often point out that the I-95 corridor is a notorious "rain-snow line." Gaithersburg is just far enough north and west of D.C. to often stay on the snowy side of that line while Bethesda or Silver Spring might just get slush.
Actionable Survival Tips for the Week
Given the forecast, here’s what you actually need to do:
- Check your pipes by Tuesday: With a low of 15°F, uninsulated pipes in garages or crawlspaces are at risk.
- Salt the driveway Saturday night: Don't wait for Sunday's snow showers to start. Getting a base layer down before the Monday storm hits will save your back later.
- Wiper blades up: If you’re parking outside on Sunday night, pull those wipers away from the glass. You’ve seen your neighbors do it; there’s a reason.
- Humidity check: Indoor air is going to be incredibly dry this week (33% humidity outside means even lower inside). Dig out the humidifier if you don't want to wake up with a scratchy throat.
The stretch from Tuesday's 26°F high to next Monday's snow storm is going to be a test of endurance. Winter in Maryland isn't just a season; it's a series of tactical maneuvers. Stay warm out there.