wpostServer: http://css.washingtonpost.com/wpost

The Post Most: Local

Posted at 05:00 AM ET, 02/28/2012

Forecast: Mostly sunny and cooler; rain Wednesday

Today's Daily Digit
 
A somewhat subjective rating of the
day's weather, on a scale of 0 to 10.

 
Lots of sunshine, but temperatures about 10 degrees colder today. I like yesterday better.
 
Get the 'Digit' on Twitter
EXPRESS FORECAST

Today: Mostly sunny, cooler. 50-54. | Tonight: Mostly cloudy, chance of showers by dawn. 34-39. | Tomorrow: Cloudy, rainy, chilly. 44-49. | Get Express Forecast by E-mail

FORECAST IN DETAIL

We are only a few days away from March, and I certainly get the sense that springtime is anxious to get going around here. We can tell by the increase in weather systems as well as the increase in daily temperature volatility. This pattern type keeps us weather folk busy navigating all the twists and turns!

Look for cooler weather today with mostly sunny skies before rains arrive tomorrow morning. They could be moderate to heavy tomorrow afternoon with lingering effects into Wednesday night. Drier weather returns Thursday-Friday before more rain returns for Saturday with a cooler, drier Sunday to follow. Whew.

Snow Potential Index: 1 (↑) - Chance of some flakes Saturday night or Sunday morning behind cold front, but, if anything, probably conversational.
 
The SPI is a daily assessment of the potential for accumulating snow for the next week on a 0-10 scale. Get the 'SPI' on Twitter
 

Today (Tuesday): Weak high pressure works across our area today, offering sunshine along with a cooler air mass compared to yesterday. High temperatures should range from near to slightly above normal in the low-to-mid 50s. Light breezes from the northwest at 5-10 mph could feel colder at times owing to the drier dew points. A few clouds could start to sneak into the sky by late in the day. Confidence: High

Tonight: Clouds pile into the area to dominate the overnight hours. We have a chance (30%) of showers toward dawn, but low temperatures should only get down as low as the mid-to-upper 30s with light winds. Confidence: Medium

Keep reading for the forecast through the weekend...

Tomorrow (Wednesday): This is the ugliest day of the work week in terms of rain and raw temperatures. Rains should get going in the morning with possible moderate to heavy conditions at times in the afternoon. We should accumulate about .5” to .75” from this deal. Highs only in the more miserable mid-to-upper 40s. Winds from the southeast and then southwest later in the day at 5-10 mph. Confidence: Medium

Tomorrow night: Showers trend lighter, but still persist through the evening hours and potentially until after midnight. Temperatures basically hold steady or drop slightly in the 40s under cloudy skies. Confidence: Medium

A LOOK AHEAD

Thursday’s weather improves considerably with partly to mostly sunny skies (maybe some early AM fog). Highs in the mid-to-upper 50s with light breezes. Thursday night should find mostly clear skies and some colder lows down into the 30s in the suburbs to near 40 in the city. Confidence: Medium

Friday may run a bit cooler, but still should see mostly sunny skies. Some high clouds could sneak into view late in the day. Highs range through the 50s. Friday night features increasing clouds as yet another Midwest weather system chugs toward our area. Confidence: Medium

The first weekend of March comes in like a lion with an unsettled Saturday. A strong low pressure racing up into eastern Canada has a vigorous “tail” of a cold front that should approach the area late in the day. This should allow temperatures to surge well into the 60s (maybe higher?) along with showers and perhaps some rumbles of thunder. Windier and colder weather arrives Saturday night and Sunday with lows in the upper 30s and low 40s to Sunday highs in the low-to-mid 50s (but breezy conditions could make it feel colder than that). Partly sunny skies on Sunday. Confidence: Low

By  |  05:00 AM ET, 02/28/2012

Categories:  Forecasts

 
Read what others are saying
     

    © 2011 The Washington Post Company