Network News

X My Profile
View More Activity
The new Washington
Post Weather website
Jump to CWG's
Latest Full Forecast
Outside now? Radar, temps
and more: Weather Wall
Follow us on Twitter (@capitalweather) and become a fan on Facebook
Posted at 10:00 AM ET, 07/13/2009

Forecast: Very Warm Week, Sticky Heat Limited

By Jason Samenow

Humid midweek, t'storm threat Wed-Fri p.m.

* Outside Right Now? See Radar, Temps & More: Weather Wall *
* D.C.'s Sweet Summer | Later: Up Close with Stephanie Abrams *


Today: Mostly sunny. 84-87. | Tonight: Mostly clear. 60-67. | Tomorrow: Mostly sunny. 86-90. | A Look Ahead


Until yesterday, a remarkable 16 straight days came and went without it hitting 90 degrees. Even though it touched 90 yesterday, it didn't feel that hot as humidity dropped throughout the afternoon. We'll have a couple more low-humidity days like that to start the week, before humidity teams up with increasing heat Wednesday and Thursday. Then, a cold front will settle over the region, cooling it down some, but bringing a chance of mainly late-day t'storms. By the weekend, dry and pleasant weather returns.

Temperatures: Current area temperatures. Powered by Weather Bonk. Map by Google. Hover over and click icons for more info. Click and hold on map to pan. Refresh page to update. See map bigger on our Weather Wall.

Today (Monday): Flow from the northwest -- like we've experienced much of the month -- will give us a dry, comfortable day. Though humidity will be low (dew points in the mid-50s), lots of sunshine will help temperatures rise into the upper 80s. The light breeze from the northwest will blow at 5-10 mph. Confidence: High

Tonight: Mostly clear and pleasant. Lows will drop all the way down into the upper 50s in the cooler suburbs, with mid-60s downtown. Confidence: High

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

Tomorrow (Tuesday): It will be a day just like today (highs in the upper 80s), but a little more humid (though still comfortable) and with a little less wind. So it will end up feeling 5 degrees warmer than today. The very light breeze from the southwest will blow at around 5 mph. Confidence: Medium-High

Tomorrow Night: Mostly clear but not as comfortable. Humidity will increase some with lows in the low 60s in the cooler suburbs, with upper 60s downtown. Confidence: Medium-High


Winds start to come around out of the south Wednesday, giving us a very warm and humid day. Highs will be near 90, but it will feel a little hotter than that factoring in the increasing humidity. By late afternoon or early evening, a few thunderstorms could pop in the juicy airmass. Muggy overnight, with lows in the upper 60s to low 70s (suburbs to city). Confidence: Medium-High

Thursday may be the hottest and most humid day of the week, and possibly the summer (the hottest previous day was 92 all the way back on April 26). Moist tropical air will head northward over the area, boosting highs to 89-94. A cold front approaches late possibly triggering some afternoon and evening thunderstorms while signaling the end of the sticky heat. Showers and thunderstorms may continue into Thursday night, with lows in the 60s. Confidence: Medium

It shouldn't be as warm and humid on Friday as the cold front settles to our south. However, the front's proximity may mean clouds, and the continuing chance for showers and thunderstorms, particularly in the afternoon, evening and into the overnight. High should be in the mid-to-upper 80s with lows in the 60s Friday night. Confidence: Medium

At this juncture, the weekend looks promising. High pressure to the northwest may push the front far enough south to allow dry, pleasant air to filter into the region. Both days may be partly to mostly sunny and comfortable, with highs in the mid-80s and overnight lows from the upper 50s to mid-60s (suburbs to city). Confidence: Low-Medium

By Jason Samenow  | July 13, 2009; 10:00 AM ET
Categories:  Forecasts  
Save & Share:  Send E-mail   Facebook   Twitter   Digg   Yahoo Buzz   StumbleUpon   Technorati   Google Buzz   Previous: Forecast: Drier Air Returns...
Next: Weather Channel Launches New Morning Show


it was so nice outside this morning...

Posted by: madisondc | July 13, 2009 10:32 AM | Report abuse

Much of the storminess is now passing to our south.

Posted by: Bombo47jea | July 13, 2009 1:35 PM | Report abuse

The comments to this entry are closed.

RSS Feed
Subscribe to The Post

© 2012 The Washington Post Company