Look, if you’ve lived around Montgomery County for more than a week, you know the drill. You check the app, it says "partly cloudy," and ten minutes later you’re questioning your life choices while standing in a sudden freezing drizzle. Checking the weather in rockville md hourly isn't just a habit here; it’s a survival tactic.
Right now, as of mid-afternoon on Sunday, January 18, 2026, the mercury is sitting right at a crisp 32°F. It feels more like 25°F, though, thanks to a 9 mph wind cutting in from the north. Honestly, it’s that classic mid-Atlantic winter dampness that just gets into your bones. We’re currently seeing some light snow showers, which fits the 35% chance of precipitation we were warned about for this hour.
The Breakdown: Your Evening and Tonight
The humidity is hovering around 68% at the moment, but that’s going to climb as we head into the evening. If you're planning to head out to Rockville Town Square or grab dinner over on Rockville Pike, here is the raw deal on what the next few hours look like.
The light snow should taper off fairly soon. The daily forecast earlier predicted a 100% chance of a rain-snow mix for the daylight hours, but the "night" portion of the forecast is looking much better. We’re expecting things to clear up completely. However, "clear" in January usually means "cold." Like, really cold.
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We are looking at a low of 22°F tonight.
With the north wind staying fairly steady at 10 mph, that clear sky is basically an open window letting all the heat escape. If you have sensitive plants or a dog that thinks it's a polar bear, keep an eye on them. The UV index is currently at 0, which makes sense given the "daytime" part of the day is winding down under a gray blanket.
Why Rockville Weather Is So Fickle
People often ask why the weather in rockville md hourly changes so fast compared to, say, DC or Frederick. We’re in this weird topographical pocket. You’ve got the heat island effect from DC pushing up from the south, but you’re also just high enough in elevation that we catch the cold air dumps coming off the Blue Ridge mountains to the west.
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Earlier today, we hit a high of 36°F. It wasn't exactly tropical, but it was enough to keep the "rain and snow" mix mostly on the sloppy side rather than the "buried in a drift" side.
- Current Temp: 32°F
- Wind: 9 mph from the North
- Current Condition: Light snow showers
- Tonight’s Low: 22°F
Surviving the Rockville "Slop"
When the forecast calls for a 100% chance of precipitation like it did today, but the temp is right at the freezing mark, you get the "Slop." It’s not quite ice, not quite snow. It’s the stuff that makes the I-270 commute a nightmare.
The humidity for the day averaged out at 81%, which is why the air feels so heavy. Even when it isn't "snowing" hard, that moisture is clinging to the pavement. Since it’s dropping to 22°F tonight, anything that didn’t dry up this afternoon is going to turn into a literal skating rink by 9:00 PM.
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What to Do Next
If you’re reading this and thinking about tomorrow, keep the scraper handy. The clearing skies tonight are a bit of a trap because they guarantee a hard freeze.
You should probably check your tire pressure tonight, too. That jump from 36°F down to 22°F is exactly the kind of shift that triggers those annoying "low pressure" sensors in the morning. Basically, enjoy the clear skies tonight, but don't let the lack of clouds fool you—it's going to be a biting start to the work week.
Stay warm, keep the salt bucket by the door, and maybe skip the car wash until the north wind dies down.