Radar courtesy MyRadar | © OpenStreetMap contributors

Key points

  • Snow showers of varying intensity could continue at times into Tuesday.
  • Bursts of snow reduce visibility at times and re-coat roads. Temperatures at or below freezing mean untreated surfaces will remain slick.
  • Additional accumulation in the immediate area should range from a coating to a couple inches through Tuesday. One to three inches are possible well north of the District into northern Maryland (generally north of Interstate 70).

Updates

9:40 p.m. — Radar pretty quiet; snow showers could increase again overnight

Radar is pretty quiet now. Not expecting anything more in the way of meaningful snow for the time being, though a few snow showers or flurries remain possible through the evening. Models suggest more organized snow shower activity could pick up again after 3 a.m. or so. See previous update for the forecast through tomorrow.

5:10 p.m. — Updated forecast for tonight and Tuesday, as snow increases

Snow has increased from the north quite a bit over the last hour and is sinking south into the metro area. Here’s an updated forecast through Tuesday.

Tonight: Periodic snow will continue through the night. It will be mostly on the light and intermittent side locally, but some heavier bursts are possible. There may also be a little sleet or freezing rain early. A coating to two inches is most likely. If you head north of Interstate 70, somewhat higher amounts are possible.

Temperatures don’t change a whole lot from during the day, with lows mainly in the mid-20s to near 30. Keep on keeping an eye out for slick spots! Winds are out of the north around 10 to 15 mph with gusts near 30 mph at times.

Tomorrow (Tuesday): This storm isn’t moving much, so our weather will stay similar. Some more snow seems likely, perhaps mainly in the morning. Anything that falls will be generally light, but briefly moderate snow is possible. It may mix with rain if it lasts long enough into the day. Highs will reach the low and mid-30s, while winds will be out of the northwest around 15 mph, with gusts near and past 30 mph.

Our next update will be around 7 p.m.

4 p.m. — Light snow and freezing drizzle continue.

Pockets of light snow continue to cycle through mostly the western and northern half of the region from northwest to southeast. Radar currently shows snow showers passing through Howard, Montgomery and Loudoun counties. To the east, not much is happening but there is some patchy light snow and freezing drizzle.

This precipitation pattern should persist for the next couple of hours. There’s some possibility snow showers may fill into the east a bit this evening. Temperatures should continue to hover in the upper 20s and low 30s meaning untreated surfaces will stay slick.

By far, today’s biggest snow has focused in north central Maryland, mainly from around Hagerstown and to the east. Here’s a photo:

Scroll down to the bottom of the post for earlier updates.

Detailed forecast

Today’s daily digit

A somewhat subjective rating of the day’s weather, on a scale of 0 to 10.

6/10: I like the snow but wish there was more. Not a fan of the wind.

Express forecast

  • Today: Intermittent snow showers, especially north. Breezy. Highs: 30 to 35.
  • Tonight: Scattered snow showers. Lows: Near 30.
  • Tomorrow: Widely scattered snow showers/flurries, windy. Highs: 35 to 40.
People came to enjoy the snow on Jan. 31 in one of the nation's oldest national parks. (The Washington Post)

Forecast in detail

After 2 to 4 inches of snow Sunday, we’re not totally out of the woods. Additional snow showers may develop as the storm off the Mid-Atlantic coast cranks up. In no hurry to leave, it could generate snow showers and flurries into Tuesday. By Wednesday, we start clearing out and begin a gradual warming trend until another shot of cold air by Saturday.

Get our daily forecasts on your Amazon Alexa device.

Today (Monday): Spotty areas of mixed frozen precipitation are possible this morning. Beware of slick roads and walkways. As we get later in the morning and to the afternoon, occasional snow showers are possible, especially in our northern and northeastern suburbs. Temperatures don’t rise a whole lot, with highs 30 to 35. With sustained winds from the north at 15 to 20 mph, it feels 10 degrees colder. Confidence: Low-Medium

Tonight: Scattered snow showers are possible throughout the night. Some areas, especially north of the District, could see a bit of accumulation (refer to map below). Lows settle near 30 degrees, with winds from the north around 15 mph and higher gusts. Confidence: Low-Medium

Follow us on Facebook, Twitter, and Instagram for the latest weather updates. Keep reading for the forecast through the weekend …

Tomorrow (Tuesday): Especially in the morning, some snow showers or flurries can’t be ruled out. Skies stay mostly cloudy through the afternoon, with highs 35 to 40. Winds continue to be gusty out of the northwest, sometimes topping 25 mph. Confidence: Low-Medium

Tomorrow night: Mostly cloudy skies with perhaps a few flurries still flying around. It’s blustery and cold with lows in the mid-20s. Confidence: Medium

A look ahead

By Wednesday and Thursday, the coastal storm should finally be history as temperatures slowly rise. Both days are mostly sunny as highs climb from the upper 30s Wednesday, which remains windy, to low to mid-40s Thursday, when breezes calm. Lows Wednesday night are in the 20s. Confidence: Medium-High

Thursday night into Friday a frontal system passes by. First comes the warm front Thursday night bringing a chance of showers as lows dip to near 35. During the day Friday, we should climb up to near 50 before the inbound cold front brings another possible round of showers. Confidence: Medium

Turning colder Friday night into the weekend. We’ll have to watch whether a storm forms along the cold front that passed on Friday, possibly introducing the chance of snow or mixed precipitation Saturday and/or Sunday. Highs Saturday are in the 40s cooling to the 30s on Sunday. Nighttime lows in the 30s Friday night cool to the 20s Saturday night. Confidence: Low-Medium

Snow potential index

A daily assessment of the potential for at least 1 inch of snow in the next week, on a 0-10 scale.

5/10 (): Through Tuesday, our northern suburbs in particular may be able to squeeze out an inch or so. If not, the weekend may bring another chance of some snow.

Expired updates

7 p.m. — Burst of snow moving away after producing fresh coating

The batch of snow, some of it moderate to heavy, that rotated through the area from the northeast is now moving away to the southwest and dissipating as it does. But not before it gave much of us a fresh coating. More snow showers and flurries remain possible through the night, but for now there’s no organized area of steady snow headed our way.

2:30 p.m. — Sleet has changed to snow from the District westward. Winter weather advisory extended into Tuesday.

From the District westward, sleet and freezing rain has mostly transitioned to snow. Light to moderate snow is falling near and west of Interstate 95 from Fairfax County through Baltimore.

The National Weather Service has extended the winter weather advisory to 9 a.m. Tuesday, previously in effect until midnight. It says up to 2 inches of snow could fall. This is consistent with Capital Weather Gang’s forecast for an additional coating to two inches.

When it’s not snowing, pockets of freezing drizzle are likely.

1 p.m. — Sleet showers continue, with snow showers to the west and northwest

Scattered sleet showers continue in the Washington region, but we’re seeing a few more reports of the sleet mixing with and changing to snow to the west and northwest.

We’re getting reports of sleet changing to snow in Vienna and Herndon, while the transition occurred last hour in northern and western Montgomery County.

The atmosphere should gradually cool enough for the transition to snow to continue progressing east and southeast into the afternoon. By late afternoon, snow would be more prevalent.

11:10 a.m. — Freezing drizzle transitioning to sleet, and some snow to the northwest

The coastal storm slamming New York City with heavy snow is generating a light wintry mix around the Washington region. Freezing rain and drizzle is starting to transition to sleet and, in our northwest areas, some snow.

Into the early afternoon, we should continue to see light freezing rain and sleet showers, with the possibility of more snowflakes mixing in with time. Temperatures hovering in the upper 20s and low 30s meaning conditions will be slick, especially on untreated roads and sidewalks.

9:30 a.m. — Winter weather advisory extended for immediate area

The winter weather advisory for the immediate area was extended until midnight. The National Weather Service is calling for continued icy precipitation this morning transitioning to snow showers into the afternoon and evening. Another glaze of ice and up to an inch of new snow is possible. In northern Maryland, a winter storm warning remains in effect until 6 a.m. Tuesday for mixed precipitation and up to 2 to 4 inches of additional snowfall.

8:15 a.m. — It’s very ice outside as patchy light frozen precipitation falls

After light freezing drizzle for much of the night and spotty areas of light sleet and snow, untreated surfaces in much of the metro region are glazed over and hazardous. Use caution walking and driving. Temperatures are in the upper 20s to near 30 so any improvement today will be slow.

Scattered areas of mixed precipitation should change to snow showers as the morning wears on, with the greatest concentration in our northern suburbs.