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Posted at 10:45 AM ET, 05/19/2009

Forecast: More Spectacular Spring Weather

By Matt Rogers

* NatCast: Premium Weather | Climate Change: What's in a Name? *


Today: Sunny, highs in low 70s. Tonight: Mostly clear, cool. 40-48. | Tomorrow: Mostly sunny, again. 75-79. | A Look Ahead


Splendid springtime conditions will prevail today after a chilly morning. Each day this week will get progressively warmer, and we should see 80s around the area by Thursday and Friday. The other bonus is that we will continue to see more sun than clouds. The upcoming Memorial Day Weekend remains a big question mark though.

Today (Tuesday): After some scattered frost in some of the distant north and west suburbs with 40s closer in, a steep temperature rise should bring us up to around 70 in most locations. Sunshine should dominate. Confidence: High

Tonight: Mostly clear again with cool conditions. Lows ranging from 40 in the outer suburbs to the upper 40s in the city. Confidence: High

Keep reading for the forecast through the holiday weekend...

Tomorrow (Wednesday): Excellent weather continues with mostly sunny skies, light breezes, and highs in the mid-to-upper 70s. Confidence: Medium-High

Tomorrow Night: Partly cloudy and not as cold, lows in the upper 40s to low 50s. Confidence: Medium-High


Thursday features some warming temperatures and maybe a touch of higher humidity as a wind from the south arrives. Mostly sunny skies are expected with highs in the low 80s. Confidence: Medium-High

Friday continues the warmer theme, along with some sunshine. Look for highs moving up into the middle or maybe upper 80s. Confidence: Medium

The Holiday Weekend is still a big challenge as uncertainties persist regarding a low pressure system currently menacing Florida. Moisture could feed north into our area or it could stay away to our south and west. Right now, the best bet is to call for increased clouds, an easterly wind flow, and a 40% chance of showers on Saturday and Sunday (highs mainly 70s). Monday could be warmer with upper 70s or low 80s possible, but still that pesky 40% chance of showers. Confidence: Low

By Matt Rogers  | May 19, 2009; 10:45 AM ET
Categories:  Forecasts  
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Posted by: CapitalClimate | May 19, 2009 10:33 AM | Report abuse

Lows this morning were 45 at National, and 38 at Dulles and BWI. BWI's low was a new record.

Posted by: CapitalWeatherGang | May 19, 2009 11:15 AM | Report abuse

As previously posted elsewhere with some historical context.

Posted by: CapitalClimate | May 19, 2009 11:29 AM | Report abuse

Watch out for very high UV rays today - we are forecast to be an 8 or 9 on the scale today... solar noon approaches! :)

Posted by: Camden-CapitalWeatherGang | May 19, 2009 12:40 PM | Report abuse

UPDATE: actual readings across the region are UV 11, that is extreme. Get out that sunscreen! (they make SPF 70 now!)

Posted by: Camden-CapitalWeatherGang | May 19, 2009 1:08 PM | Report abuse

seriously??? can capitalclimate stop posting links to its own blog? especially one-word text-links...

i can't believe this weather, it feels like the fall almost - although i'm not missing the humidity!

Posted by: madisondc | May 19, 2009 1:19 PM | Report abuse

Weekend weather will depend on whether that system forecast to move westward from Florida can throw some moisture in our direction,

Posted by: Bombo47jea | May 19, 2009 1:50 PM | Report abuse

That UV reading is enhanced by a sun angle equivalent to July 24 (less than 4° below the yearly maximum), but without the "benefit" of July haze and humidity.

Meanwhile, at least one additional cold record has been reported in the region.

Posted by: CapitalClimate | May 19, 2009 3:16 PM | Report abuse

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