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Posted at 11:00 AM ET, 06/18/2010

Forecast: Another nice day, then a hot weekend

By Camden Walker

Scorching Father's Day with small storm chance

* The elusive green flash | Lightning: To crouch or not to crouch? *
* Outside now? Radar, temps & more: Weather Wall | NatCast *

Today's Daily Digit
A somewhat subjective rating of the day's weather, on a scale of 0 to 10.
8A tad warm for my taste. But low humidity is worth savoring with hot & humid weather on the horizon
Get tomorrow's 'Digit' on Twitter tonight


Today: Sun & warmth. Mid-to-upper 80s. | Tonight: Clear, comfortable. Low-to-mid 60s. | Tomorrow: Mostly sunny & hot. More humid. Around 90. | Sunday: Mostly sunny & scorching. 20% chance of a p.m. t'shower. Mid-90s. | A Look Ahead | Get Express Forecast by E-mail


A. Camden WalkerTwo things increase this weekend: Heat... and humidity. By Sunday there's a small chance of a cooling shower or two, but otherwise we're looking high and dry. Enjoy today's warm and low-humidity 80s, because highs head for 90 and above this weekend with increasing mugginess. The heat stays into early next week, so get ready to drink plenty of water and dress in light material and light colors. Oh, and wear that sunscreen -- the sun is at its highest angle of the year as summer officially begins Monday.

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.

Today (Friday): Much like yesterday, highs in the mid-to-upper 80s definitely feel like summer. But the lack of humidity makes the warmth quite tolerable, even with not much breeze to speak of. Mostly (if not fully) clear skies send the UV index soaring. So enjoy -- with sunscreen, please -- what looks to be the last day for a while with humidity as a non-factor. Confidence: High

Tonight: Skies likely remain clear, and humidity remains comfortable. That, combined with temperatures dropping into and through the 70s, should make for a pretty fantastic evening. Overnight lows dip to the low-to-mid 60s (refreshing enough to open the windows?) with light winds. Confidence: High

Keep reading for the forecast into next hot?

Tomorrow (Saturday): Somewhat more humid -- probably into the moderate range -- and hot. Highs should be around 90, with light winds from the south bringing in our more humid air. So far, it looks like we'll escape without showers. So, with ample sunshine, wear that sunscreen. I sweated mine off last weekend, and burned! Ouch. Confidence: Medium-High

Tomorrow Night: Keep that A/C on. Lows only drop to the low 70s to near 70 in the suburbs, and low-to-mid 70s downtown. And that humidity keeps increasing with mostly clear skies. Confidence: Medium-High

Sunday: Mostly sunny & hot. That is the gist. Highs could climb all the way to the mid-90s! And there's a small (20%) chance of an afternoon shower or thundershower. Humidity shouldn't be oppressive, but high enough to send the afternoon heat index into the upper 90s to perhaps near 100. Confidence: Medium


Partly cloudy Sunday night with a slight chance of a shower or thundershower. Temperatures remain mild with lows in the low 70s to near 70. Humidity may briefly dip Sunday evening and night, depending on whether a weak cool front is able to move through. Confidence: Medium

Monday continues hot and moderately humid with partly to mostly sunny skies, highs probably in the low-to-mid 90s, and a 20-30% chance of afternoon/evening showers or storms. Also, happy summer solstice!... at 7:28 a.m. Confidence: Medium

Tuesday may see more clouds, but highs still aiming for the low-to-mid 90s and humidity likely ticking upward. Afternoon/evening shower and storm chances could creep up to around 30-40%. Confidence: Low-Medium

By Camden Walker  | June 18, 2010; 11:00 AM ET
Categories:  Forecasts  
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If it's another nice day where's the "Nice Day!" logo?

Posted by: rwalker66 | June 18, 2010 6:00 AM | Report abuse

Excuse me if this has been discussed recently, but why are we having late-July weather, i.e., disgusting heat and humidity, so consistently in early- and mid-June?

Posted by: dcreader6 | June 18, 2010 9:22 AM | Report abuse


Borderline for nice-day stamp, which requires highs between 65 and 85 (see our faq page for criteria).

Posted by: Dan-CapitalWeatherGang | June 18, 2010 9:46 AM | Report abuse

dcreader6, right now the atmosphere is in a pattern that is conducive for Bermuda High Pressure systems sitting off the East Coast of the U.S. The southerly wind around the clockwise flow of a High sitting off the coast brings heat & humidity from the Gulf Coast region. I am not happy this June is trying to attempt at being our warmest June yet!

Posted by: Camden-CapitalWeatherGang | June 18, 2010 10:22 AM | Report abuse

Thanks for the explanation. Is this atmospheric pattern something that's projected to stay in place for a while, or do we have hope for short-/medium-term relief?

Posted by: dcreader6 | June 18, 2010 10:40 AM | Report abuse

dcreader6: Actually I consider "Bermuda High" weather NORMAL at any time between Memorial Day and Labor Day around here. Cool, nasty and rainy weather would be abnormal at this time of year, as would any sustained windy weather not resulting from a tropical/subtropical system.

We may finally be getting the dry summer we were promised as the number of rain threats is going down and those that happen are tending to "bust". I know that "much-needed rain" fans won't like this, but back in mid-February when we got all the snow, I was saying that we ought to have enough ground water "in the bank" to carry us through to Labor Day. As it is, my neighborhood in the Columbia Heights West area of Arlington looks nice and green, despite the "busts" on some recent rain threats.

The Minnesota tornado outbreak has also grabbed my attention, as much of my family lives in western Wisconsin and southeast Minnesota. I can remember passing through Wadena as a boy when the family visited my paternal grandparents in Fargo, ND.

Posted by: Bombo47jea | June 18, 2010 1:02 PM | Report abuse

I believe it is going to be a summer full of dominance by Bermuda High Pressure systems. Secondarily, this worries me with regards to the predicted above-average hurricane season. The east coast may be more vulnerable than usual... it remains to be seen. But expect hot weather, yes. With only short periods of relief. I personally want as many cold fronts as possible to give us a day or two of relief, before the Bermuda High likely reasserts itself ;)

Posted by: Camden-CapitalWeatherGang | June 18, 2010 2:35 PM | Report abuse

The flip side of our pattern (although not all patterns have a flip side) is that the Pacific NW has had persistent onshore flow. Although they have not had record cold: which shows this graphic - it is quite unusual for them to stay below normal for so long.

Posted by: eric654 | June 18, 2010 2:48 PM | Report abuse

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