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Posted at 5:10 PM ET, 06/27/2010

Forecast: Heat wave hanging tough

By Brian Jackson

* Follow tropical storm Alex: Hurricane Tracking Center *
* Radar, lightning, temps & more: Weather Wall *

Today's Daily Digit
A somewhat subjective rating of the day's weather, on a scale of 0 to 10.
4Though we're getting used to this heat now, still looking forward to the upcoming cool down.
Get tomorrow's 'Digit' on Twitter tonight


Today: Mostly sunny & hot. Isolated p.m. storms possible (20% chance). 94-98. | Tonight: Isolated evening storm. Warm & muggy. 72-78. | Tomorrow: Heat remains. 40-50% chance of p.m. t'storms. Mid-90s. | A Look Ahead | Get Express Forecast by E-mail


The second peak of our heat wave arrives today as heat and humidity combine to push heat indices to near 100. As Jason said yesterday, before this heat heads out of here, we're likely to have a streak of double-digit days in which we reach or exceed 90 degrees. Not exactly DiMaggio-esque, but impressive nonetheless. Some welcome rain is likely tomorrow as a cold front approaches, potentially igniting a few strong storms. Finally, as we move toward midweek, cooler, drier air moves in and we're in for a stretch of much more enjoyable weather.

Radar & lightning: Latest D.C. area radar shows movement of precipitation and lightning strikes over past two hours. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

Today (Sunday): We probably won't hit the century mark (like Thursday) but we'll come close. Mostly sunny skies early quickly raise the mercury and we're looking at highs into the mid-to-upper 90s to close out the weekend. With the heat and humidity we'll see some locales luck out and have a quick thunderstorm or two to cool them off, though this will likely be the exception rather than the rule. Winds will be from the west-southwest at less than 10 mph. Confidence: High

Tonight: An isolated thunderstorm is possible this evening. Otherwise, it's definitely not the most pleasant of overnights with respect to comfort levels. Scattered to broken cloud cover will be overhead with dew points in the lower 70s. That means overnight lows of just 72-78 - which almost seems unfair. In fact, if thicker clouds persist, spots downtown may not get much cooler than 80 by sunrise. Confidence: High

Keep reading to see when we'll begin to cool down....

Tomorrow (Monday): A cold front approaching during the afternoon/evening brings elevated chances (40-50%) for some welcome rain. Unfortunately, before any rain gets here, we're likely to see the north side of 90 for the 10th day in a row! Mostly sunny skies early, with highs on their way to the low-to-mid 90s, give way to increasing clouds and the possibility of a round of afternoon thunderstorms followed by a second, more likely round toward evening. Some of storms could be strong/severe so make sure to check in tomorrow. Confidence: Medium-High

Tomorrow Night: Showers and storms likely continue into the overnight hours but we should be mostly rain-free by morning as the front moves past. Skies remain mostly cloudy, and lows remain elevated, in the low-to-mid 70s. Confidence: Medium


Tuesday will see a marked improvement. Humidity levels dip down and temperatures take a dip as well. Skies will be partly-to-mostly sunny and we'll have a slight chance (20%) for some t'storms as a disturbance passes by to the south. Highs will reach the upper 80s and there's a chance we could reach 90 if the clouds/rain stay further south. Confidence: Medium

Wednesday brings even better news. A much cooler and drier air mass moves in much to our delight. Mostly sunny skies and afternoon highs only in the low-to-mid 80s are definitely something worth looking forward to. Confidence: Medium-High

By Brian Jackson  | June 27, 2010; 5:10 PM ET
Categories:  Forecasts  
Save & Share:  Send E-mail   Facebook   Twitter   Digg   Yahoo Buzz   StumbleUpon   Technorati   Google Buzz   Previous: NatCast: Dog days come early
Next: Forecast: Big heat today, then big relief


Greetings from Dayton, Ohio where things are much greener and we aren't hitting triple digits. We have some strong storms coming through here today which are going to cool things off. Looks like in DC we won't get real relief until Weds when I get back. Looking at Alex, and the projected path, DC does not look to gain anything like a good soaker??

Posted by: rHairing | June 27, 2010 8:41 AM | Report abuse

well, i said i'd do it when we're headed for "upper 90s"...and here we are... might cool you down a bit?


Posted by: walter-in-fallschurch | June 27, 2010 8:45 AM | Report abuse

@walter -
Thanks for the memories! My favorite (tho I like them all) is the politicians!

Posted by: waterfrontproperty | June 27, 2010 8:54 AM | Report abuse

Current conditions in Burke: 83.8 with cloudy conditions.

Oh my goodness! The At A Glance says we will have two Wednesday's in a row, and the sun won't even shine on the second one!

Posted by: Yellowboy | June 27, 2010 9:02 AM | Report abuse

What is that graphic the NWS has posted for Wednesday? Are we expecting an eclipse? No high or low temperature either. Is the world going to end?

Posted by: bdeco | June 27, 2010 10:51 AM | Report abuse

LOL Yellowboy!

Posted by: FIREDRAGON47 | June 27, 2010 10:51 AM | Report abuse

i always like to hear which ones are peoples' favorites. seems like almost every one is somebody's favorite.

Posted by: walter-in-fallschurch | June 27, 2010 12:21 PM | Report abuse

Looks like we have a pretty good shot at 100 at National, 97 at 1.

Posted by: Ian-CapitalWeatherGang | June 27, 2010 12:57 PM | Report abuse

A few more storms gathering and moving from the southwest today. Does this equal a greater chance for a t-storm or is this just wishful thinking?

Posted by: bodyiq | June 27, 2010 1:04 PM | Report abuse

The longer range looks really hot after our short break. EURO trying to advertise more 100s.

Posted by: Ian-CapitalWeatherGang | June 27, 2010 1:08 PM | Report abuse

Looks like the MUCH-UNNEEDED severe weather is threatening my Monday-afternoon Ballston errand...looks as though I have TWO non-renewable library books to lug back to Arlington Central tomorrow or get hit with some sizable fines...wish it could cool us down this evening when I don't go to the Library...bringing them in early today would only mess up my MWT afternoon errand schedule which just got messed up last week by Metro's inability to have my new higher-priced weekly bus pass available before Friday...Friday afternoon in Ballston is such a "dead zone".

As for the question "why not get a Smarrip Card the answer is that I'm 63.5 years old. Why buy a "regular" SmarTrip card now, when you need to buy a "senior" SmarTrip card a year and a half from now at additional cost??? No thanks, I'll wait till I'm 65.
The current new Metrobus fares are rather nasty because of the need to mess with so many coins; raising the non SmarTrip bus fares to an even $2.00 or $3.00 per trip would be far more convenient than the current "chicken-feed" fractional-cents scenario is. You can always have a lower fractional SmarTrip fare. You can always add even dollars to your Farecard or SmarTrip card.

Posted by: Bombo47jea | June 27, 2010 1:24 PM | Report abuse

BTW, two rain threats over six's starting to dry up a bit.

The Wednesday and Thursday "At a Glance" posts look a bit unusual.

Posted by: Bombo47jea | June 27, 2010 1:35 PM | Report abuse

What're the odds that the second round of thunderstorms rain out the first Fort Reno show tomorrow? Shows start at 7 p.m.

Posted by: dinergirl1 | June 27, 2010 1:49 PM | Report abuse

National has at least tied a record high with 98, previously set in 1980.

Posted by: Ian-CapitalWeatherGang | June 27, 2010 2:09 PM | Report abuse

BWI has also tied a record with the current reading of 99.

Posted by: dcawx | June 27, 2010 3:57 PM | Report abuse

Back from San Francisco, unpacking the sweaters! I should have stayed out there, as I despise the weather pattern we have here.

Dead/brown lawns all over, and many trees are highly stressed due to the lack of rain and above-normal temperatures. National Airport is now 6.35" below normal for the year. My water bill was $163 last month (although well worth it to keep my trees healthy!).

Is there any chance whatsoever that the remnants of Alex could get caught in the jet stream over Texas and head this way? Any chance? Whatsoever?

Pray for rain everybody!

Posted by: TominMichiganParkDC | June 27, 2010 4:10 PM | Report abuse

Got some thunder in Centreville.

Posted by: FIREDRAGON47 | June 27, 2010 4:48 PM | Report abuse

Thank you for the memories, Walter!

Now I better put away some of the summer fruit so I can bake pies next winter. Not sure why I thought I was turning on the inside oven today.

Posted by: johnslau | June 27, 2010 5:16 PM | Report abuse

Light rain in Ashburn, north of Rt 7, and the sun is shining. Will be looking for rainbows shortly :-)

Posted by: natsncats | June 27, 2010 5:37 PM | Report abuse

99 at National, 100 at BWI. Both are records.
97 at Dulles, well short of the record high of 100.

Posted by: dcawx | June 27, 2010 5:38 PM | Report abuse

Finally had a nice moderate shower late afternoon here in Brambleton.
Temporary rain and sub 90 temps are good!

Posted by: bodyiq | June 27, 2010 7:45 PM | Report abuse

Finally had a nice moderate shower late afternoon here in Brambleton.
Temporary rain and sub 90 temps are good!
My son even went out to dance and play in it.

Posted by: bodyiq | June 27, 2010 7:46 PM | Report abuse

Walter, thanks for posting your snowpix. Nice on a day when when it was nearly 100 here and 102 degrees in Richmond. (Was down there yesterday, it was steamy hot, but not as bad as today's clambake.)

Looking forward to see how this past 12 months snowfall impact area snowfall averages. If the NWS is using 30-year data, and changes the data on July 1, DCA should see an increase of more than inch and IAD closer to two inches in their average annual flake totals.

But asking a federal agency to respond to a significant change in data in a timely manner is akin to asking FIFA refs to stop blowing their awful goal/non-goal World Cup calls.

Posted by: JerryFloyd1 | June 27, 2010 9:44 PM | Report abuse

Wow Bombo, you sure \o complain a lot!

Posted by: megamuphen | June 27, 2010 10:23 PM | Report abuse

Bombo, they are lowering the cost of the Smartrip card to $2.50, I believe. But, even at $5 it pays for itself after just a few rides.

Posted by: maymay1 | June 27, 2010 10:38 PM | Report abuse

wow...great day at the, which is what you want for t-storms to send everyone home. a good time was had by all.

i promise...i'll only post that sculpture link on extremely hot days...hope it helped. would have felt nice to rub snow on my neck today....

you're a true snow lover...a kindred spirit - always making snow-related it. last 6 yrs had been horrible here... then those three great storms this was so fun...unreal, really to walk out in 26" (ugh...falls church) i say 26 here, being the two early feb storms together.... some of those guys way out west (eric, etc...) got crazy amounts.....

actually, if i could, you know, pray to god about snow, i'd love to see about 6" every sunday night...first thing monday morning, i'd make my pile and wonder what to make... kids would stay home and we'd get to go sledding... later, i'd and make hot chocolate (and put bailey's in mine....). of course i'd have remembered to store some wood in a dry place, so i'd be able to stoke and rekindle the fire....

the temp predictions for tuesdays would be ~40 and the snow would be sculptable, but not melting too much. temps for tuesday night and the rest of the week would be "brutal" (i'd say "beautiful"): nothing above freezing all week - clear nights/cloudy days...whatever i make will last a few days...

ahh...but it's never that way...something always goes wrong with the jet stream or the whatever.....but sometimes it's close to perfect. and "perfect" happened twice this winter... sigh.... we're going to retire in wisconsin... or utah or something...

only 5 months 'til our annual dec 5 or so snow event!

Posted by: walter-in-fallschurch | June 27, 2010 11:06 PM | Report abuse

those crazy world cup soccer horns drove me crazy too. "drove" because now that the u.s. is out of it, my interest has severely waned.... but i's not like the world cup committee that choose south africa to be the host didn't know they'd be blowing those beehive horns... that's "traditional", apparently....

Posted by: walter-in-fallschurch | June 27, 2010 11:11 PM | Report abuse

Walter, I like the way you think.

Posted by: FIREDRAGON47 | June 27, 2010 11:13 PM | Report abuse

dcawx, you said,
"99 at National, 100 at BWI. Both are records"

dang...100 sounds soooo much hotter than 99...

Posted by: walter-in-fallschurch | June 27, 2010 11:15 PM | Report abuse

walter, as much as the snow drove me crazy this winter -- it sure would be nice to do as you say and rub some snow on the back of my neck these days! I am so over the extreme heat...

Posted by: natsncats | June 27, 2010 11:41 PM | Report abuse

Looks like Alex will be headed to the middle of nowhere, sure looks like another busy Atlantic hurricane season, rotflmao, global warming, one big heat wave and everybody is freaking out. It's D.C. it always gets muggy near the end of June, then July, then August and occasionally into September.

Posted by: zcxnissan | June 28, 2010 12:12 AM | Report abuse

Walter, the snow will come again. Probably not ever again like last year in my lifetime. I really should move to Eerie (misspelling deliberate) but I like snow, sun, snow, and northwestern Pa is snow, clouds, snow.

Posted by: JerryFloyd1 | June 28, 2010 7:32 AM | Report abuse

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