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Posted at 10:30 AM ET, 05/ 4/2010

Forecast: Some sun and lower humidity

By Matt Rogers

* NatCast | Any oil headed out of Gulf of Mexico? *
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Today's Daily Digit
A somewhat subjective rating of the day's weather, on a scale of 0 to 10.
6Mugginess gone but cloud uncertainty & shower chance prevent "Nice Day" status.
Get tomorrow's 'Digit' on Twitter tonight


Today: Partly sunny and less humid. Slight chance of shower (20%) 79-83. | Tonight: Mostly clear skies. 53-57. | Tomorrow: Lots of sunshine. 79-83. | A Look Ahead | Get Express Forecast by E-mail


After our course of muggy Monday soup (yes, a sultry summer appetizer), the cooler breezes these next few days offer a refreshing reprieve. We should still see above-normal daytime highs (in the 80s), but the drier dew points will be much more comfortable and the evenings actually cool. But look for that humidity to fight its way back onto the menu by late this week. There's even a chance to make a run at 90 again on Friday.

Today (Tuesday): Humidity stays up a bit through mid-morning before dropping nicely during the rest of the day. A weak cool front pushing through the area could trigger a few clouds at times and perhaps even a brief shower (20% chance). Nonetheless, we should still see more sun than yesterday with comfortable highs in the upper 70s to low 80s and a breeze from the west and northwest at 10-15 mph, gusting higher at times. Confidence: Medium-High

Tonight: The combination of mostly clear skies and a new cooler air mass pull temperatures down into the 50s for lows (low 50s in the suburbs and upper 50s in the city). Look for light winds less than 10 mph. Confidence: Medium-High

Keep reading for the forecast through the weekend...

Tomorrow (Wednesday): We should be more confidently in the clear -- both in terms of cloud cover and shower chances -- to warrant a "Nice Day" status for Wednesday. Relatively low humidity and highs in the upper 70s to low 80s are expected. Light winds start arriving form the south later in the day. Confidence: Medium-High

Tomorrow Night: Mostly clear skies are expected with temperatures slightly warmer than the night before, but still quite comfortable. Lows should be in the 50s in the suburbs to low 60s in the city. Confidence: Medium-High


Thursday will inch up a little warmer and a little more humid, but we should see mostly sunny skies especially early to midday with some partly cloudy conditions by afternoon toward evening. Highs are expected in the low-to-mid 80s. Partly cloudy skies Thursday night should be accompanied by lows in the upper 50s to low 60s. Confidence: Medium

Friday finds warmer winds from the west and southwest shoving a more humid air mass into our area. I believe we'll make a run at the mid-to-upper 80s, and some areas could see a rerun of this past Sunday's heat with highs closer to 90. Along with the mugginess, we'll have a 40% chance of afternoon and evening thunderstorms. Lows Friday night should be in the upper 60s to low 70s. Confidence: Low-Medium

Saturday is the trickiest part of our weekend forecast as the various forecast tools are varying on the timing of a critical cold front. On one hand, the cold front could arrive very early (before sunrise), and on the other we could see a midday or even early-afternoon frontal passage like we saw yesterday. A faster cold front could mean highs in the low 70s with just early-morning shower chances, but a slower one could yield one more day in the 80s with showers and storms possible through around midday. (My guess? The slower timing). Confidence: Low

Sunday is much easier forecast as of now. Skies should be partly sunny with generally pleasant conditions. Lows Sunday morning could be down into the upper 40s to middle 50s (jacket weather!), with cool afternoon highs in the upper 60s to low 70s. Confidence: Medium

Updated: Tuesday May 4 @ 12:10 p.m.

By Matt Rogers  | May 4, 2010; 10:30 AM ET
Categories:  Forecasts  
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Are you already happier with less humidity than yesterday? I know I am!

Posted by: Camden-CapitalWeatherGang | May 4, 2010 8:42 AM | Report abuse

Yes, Camden, but wow, did it wait until the last minute. The dew point at National Airport dropped 10 degrees between 7 and 8am this morning!

Posted by: MattRogers | May 4, 2010 8:54 AM | Report abuse

"Mugginess gone but variable clouds & shower chance prevent "Nice Day" status."

don't forget that breeze, which is anything but light downtown right now. I know it sounds nit-picky, but for those of us with severe allergies, a 15mph wind can whip up a bad case of the itchy eyes/sniffles/asthma in a hurry. For me, it's all three today, but at least it's not winter!


Posted by: rhingo | May 4, 2010 10:46 AM | Report abuse

Posted by: walter-in-fallschurch | May 4, 2010 11:39 AM | Report abuse

Still not too happy with a possible severe weather threat Friday, but it's more likely to be isolated rather than a big threat--no issue for my dance unless high winds cause power outages between 6 PM and midnight near Inova Fairfax Hospital.

Posted by: Bombo47jea | May 4, 2010 12:10 PM | Report abuse

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