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Posted at 3:25 PM ET, 08/30/2010

PM Update: Piling on more 90s

By Ian Livingston

Heat and lots of sun lasts through the work week

* Code Red air quality alert for Tuesday *
* Hurricane Earl could be a close call | Lessons from Hurricane Katrina *
* Outside now? Radar, temperatures & more: Weather Wall *

updated at 5:35 p.m. EDT

Today's temperatures in the mid-90s have pushed National Airport to 56 days at or above 90, and we're now tied with 2002 for the third most ever recorded in a year. Next up is 59 days to tie for second, and 60 will put 2010 in second on its own. The forecast for the week says it's likely we'll get one or both in a few days. On the plus side, dew points are running somewhat low, so we're not seeing terrible heat indices to go along with the high temperatures.

Temperatures: Latest D.C. area temperature map powered by iMapWeather (base map by Google). Click and hold on map to pan. Double-click to zoom. Refresh page to update. See larger map on our Weather Wall.

Through Tonight: Skies stay clear this evening and overnight. Temperatures fall back into the 80s by sunset on their way to lows in the mid-60s in the suburbs to the lower 70s downtown.

Tomorrow (Tuesday): We're looking at a near repeat of today with sunny skies and hot temperatures. Morning readings quickly rise through the 80s to around or past 90 by noon on their way to highs in the mid-90s across the area. Air quality is likely to be extremely poor and may cause issues for the general population.

See Jason Samenow's forecast through the weekend. And if you haven't already, join us on Facebook and follow us on Twitter.

Hurricane hunters: Andrea Mustain of has a new story out about a NASA flight that visited Hurricane Earl yesterday. It gives a peek into what goes into a flight to monitor a hurricane over water. Read more about Hurricane hunters and see their current flight schedules for the next few days.

By Ian Livingston  | August 30, 2010; 3:25 PM ET
Categories:  Forecasts  
Save & Share:  Send E-mail   Facebook   Twitter   Digg   Yahoo Buzz   StumbleUpon   Technorati   Google Buzz   Previous: Hurricane Earl could be close call for East Coast
Next: Forecast: Heat repeats 'til Friday; weekend cooler


They'd better hope there's no peak involved in that hurricane-hunting flight!!! Evasive action!!!!!

Posted by: fallschurch1 | August 30, 2010 4:26 PM | Report abuse

What is the all-time annual record for 90+ days?

From the forecasts, it looks like we should get to 59 days on Thursday, or perhaps Friday (even hitting #60), but then after that . . . ? Another heat wave to push us up the record list?

Posted by: ah___ | August 30, 2010 4:48 PM | Report abuse

fallschurch1: good catch, fixed. ;)

ah___, 67 is the record. I'd imagine we'll get at least one more round of 90s after this one but we should have some trouble getting the record.

Posted by: Ian-CapitalWeatherGang | August 30, 2010 4:54 PM | Report abuse

Maybe, I'm being a Pollyanna but I still don't see 67 90 degree days happening this year. Once we get past this week's heat wave, 90 degree days should be few and far between.

Sooner or later one of these hurricanes, Fiona or Earl, will help "rearrange" the atmosphere and put paid to the hottest summer days. May still be quite a few 80s, though.

Posted by: JerryFloyd1 | August 30, 2010 7:56 PM | Report abuse

Can you please do a Friday FedCast for Earl? :)

Posted by: Hanz1 | August 30, 2010 10:02 PM | Report abuse

Hanz1 - low to medium confidence still on impact to U.S. from Earl, but it would appear to currently be limited to Outter Banks of NC and Cape Cod.. we'll keep you posted.. but I wouldn't bank on any impacts here in DC really...

Posted by: Camden-CapitalWeatherGang | August 30, 2010 10:43 PM | Report abuse

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