* Freezing rain advisory for western Loudoun and Frederick counties until 1 p.m. | School closings and delays *

9 a.m. update: The freezing advisory has expired for the immediate metro area as temperatures have risen above freezing. Still watch out on sidewalks and driveways for patchy icy spots. Roads are fine. The advisory remains in effect in northwest Montgomery and northern Fauquier counties until 11 a.m. and western Loudoun and Frederick (Md.) counties until 1 p.m. where untreated roads, sidewalks, and driveways may remain extremely slick.

This is the final update in this post. Scroll down for the forecast through the week.

8:05 a.m. update: To sum up, all major roads in the metro are are fine according to scores of reports we’ve received from readers. There are icy spots on sidewalks and driveways – especially those facing north. Brick sidewalks tend to be the most deceptively slick. There could be slick spots on untreated side roads, bridges, ramps, and overpasses – but mainly in our outlying areas into western Loudoun (we have received reports of “impassable” rural roads in this area) and Frederick counties.

Temperatures are mostly right at or a little above freezing and should slowly rise safely above freezing by late morning relieving any iciness (with the exception of pockets in Loudoun and Frederick counties where winter weather advisory extends until 1 p.m.) – see our Weather Wall for a detailed temperature map.

See the reports below and in our earlier updates for more information.

7:40 a.m. update: These are one of the biggest hazards this morning: BRICK SIDEWALKS. Use particular caution on these super slick surfaces:

Here are a few more area road and sidewalk reports:

7:05 a.m. update: As steady rain falls, temperatures at 7 a.m. range from near freezing in our colder suburbs to 35 or 36 downtown. With some exceptions, roads are just wet and sidewalks tend a bit icy. A few more useful reports on sidewalk and road conditions, via Twitter:

6:45 a.m. update: If we haven’t emphasized this enough: SIDEWALKS are icy in many spots. Reports coming from readers continue to indicate main roads are mostly OK. Patchy slick spots have been reported on side roads – mostly in our colder locations north and west of the Beltway (Frederick, Loudoun and upper Montgomery counties) but I’ve seen isolated reports of slick side roads closer to town and south of town.

The icy sidewalk issue should gradually go away between 8 a.m. and 10 a.m. as temperatures rise a couple degrees into the mid-30s. But a cold, unpleasant rain will continue.

6:00 a.m. update: Readers on social media report major roads mostly just wet, but that sidewalks are icy throughout the region (even inside the Beltway and the District in spots) – be careful!. Towards Loudoun County, some side roads are reportedly icy. Here’s a representative compilation of reports to give you a sense of what it’s like out there:

5:45 a.m. update: After a break in the action, radar shows a big batch of rain and freezing rain about to swallow the immediate metro region from southwest to northeast. Temperatures at the airports range from 32 to 37 – coldest at BWI and warmest at National. A map of local temperatures (see below) shows some temperatures near or even a bit below freezing, especially north and (well) west of the Beltway.


Even where it’s not quite freezing, recent cold temperatures mean untreated surfaces that look wet may be icy, like outdoor steps and sidewalks, so please use extreme caution.

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

1/10: Miserable day. Ice to start in colder areas then cold rain. Jason, CWG.

EXPRESS FORECAST

Today: Freezing rain and rain, becoming all rain. Highs: 35-39.
Tonight: Rain early, then partial clearing and colder. Lows: 25-30.
Tomorrow: Breezy and very cold. Highs: 27-31.

FORECAST IN DETAIL

Radar & lightning: Latest regional radar shows movement of precipitation and lightning strikes over past two hours. Refresh page to update.

Be especially careful on untreated roads, driveways, and sidewalks early this morning due to areas of freezing rain. The ice threat wanes during the morning, but the week begins on a dismal note with cold rain. Another shot of very cold air arrives late tonight and grips the region Tuesday. We can’t rule out the possibility of snow Wednesday but more likely precipitation stays to our southeast.

Starting Thursday, temperatures very slowly moderate and, by the weekend, most of the region should see temperatures into the 40s.

Today (Monday): Freezing rain (in our colder areas, especially north and west of the District) and rain (everywhere else) are likely. Areas of freezing rain transition to all rain by late morning (except for a few of the coldest pockets in Loudoun and Frederick counties, which may take a little longer). The rain may be moderate at times, with half an inch to an inch of rain possible by the time the storm system pulls away. Highs only reach the mid-to-upper 30s with light winds. Confidence: Medium


Ice forecast for Monday morning

Tonight: Rain gradually tapers off between around 7 and 11 p.m. from southwest to northeast. A fairly strong cold front passes through the region, so we’ll need to keep an eye on the possibility of some refreezing and black ice forming overnight. Lows range from the mid-20s in our colder suburbs to near 30 downtown. Winds come in from the north around 10-20 mph, mainly after midnight. Confidence: Medium-High

For related traffic news, check out Dr. Gridlock. Keep reading for the forecast through the weekend…

Tomorrow (Tuesday): Here we go again with yet another windy and very cold day. Temperatures hold more or less steady from morning lows – with highs in the upper 20s to near 30. Given winds from the northwest at 10-20 mph, gusting to 25 mph – it feels like the teens much of the day. Skies are variably cloudy, with some glimpses of sunshine. Confidence: Medium-High

Tomorrow night: Mostly cloudy, less windy (winds from the northeast around 10 mph), but quite cold. Lows range from the upper teens in our colder suburbs to the low-to-mid 20s downtown. There’s an outside (20 percent) chance of a little light snow towards morning. Confidence: Medium-High


The view of Crystal City, January 7. ( Kevin Wolf via Flickr )

A LOOK AHEAD

Cloudy Wednesday while a weak wave passing to our southeast could produce some light snow (20 percent chance). Right now, it looks like no big deal, but we’ll keep a close eye on it. Highs head for the low-to-mid 30s. Partly to mostly cloudy Wednesday night with lows ranging through the 20s. Confidence: 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.

2/10 (→): No snow today, just cold rain/mix. A small chance of snow on Wednesday.

Thursday through Sunday should be a quiet period with temperatures slowly edging upward. Under partly to mostly sunny skies, highs Thursday and Friday are near 40. By the weekend, highs may reach 40-45 or so. Overnight lows moderate from the 20s Thursday night to the 30s Saturday night. Confidence: Medium