PM Update: Summer makes a comeback; California’s Rim Fire grows

Temperature Map

Temperatures: Latest D.C. area temperature map. See interactive map on our Weather Wall.

Thought we were done with the heat? Today probably set you straight. Temperatures soared a bit more than expected, with highs reaching around 90 in the city and into the mid-and-upper 80s many other spots. That kind of regime, replete with added humidity, is what we can expect for a while.

Through Tonight: Mostly clear skies early trend cloudier overnight. A batch of showers and storms near the Great Lakes should stay to our north, but a few might cross the Pa. border, potentially making it into the area (20% chance) between midnight and morning. In addition to extra clouds, humidity levels continue to rise, and that helps keep temperatures from dropping below the mid-60s to near 70 many spots.

Tomorrow (Tuesday): We start off rather cloudy, with that remnant slight risk of a shower or rumble, before skies trend partly cloudy during the day. We’ll watch for another possible (30%) chance for storms late as well. Highs reach the upper 80s to low 90s. Coupled with dew points in the mid-60s to near 70, heat indices in the mid-90s are a good bet.

See Jason Samenow’s forecast through the weekend. And if you haven’t already, join us on Facebook and follow us on Twitter . For related traffic news, check out Dr. Gridlock.


Sunset on August 23, 2013. (Ian Livingston via Flickr)

Wildfire: The Rim Fire — now one of California’s biggest on record — has burned around 150,000 acres near Yosemite National Park. After a trying weekend featuring extensive fire growth, firefighters were able to make considerable gains last night into today, with over 15 percent now contained. However, water and power supplies remain threatened.

Check out the aerial view from California’s Air National Guard (below) and this awesome nighttime satellite imagery from NOAA.

Pollen update: Tree and weed pollen is moderate, as are mold spores. Grass pollen is low.

Ian Livingston is a forecaster/photographer and information lead for the Capital Weather Gang. By day, Ian is a defense and national security researcher at a D.C. think tank.
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Jason Samenow · August 26, 2013