PM Update: Temperatures climb on Tuesday; Foliage season around the corner

September 9, 2013

Clouds: Latest mid-Atlantic infrared satellite shows movement of clouds over past two hours. Refresh page to update. See more maps on our Weather Wall.

Hope you took in today’s “cool” temperatures near 80 across the area, as things are about to turn a good deal warmer. No doubt we’ll be tacking on a few more 90-degree days when our next bout of heat is said and done. But first, we have a pretty pleasant evening ahead.

Through Tonight: No worries for outdoor activities this evening, like, oh, a football game. Skies are mixed, but with the wind shifting out of the south, we shouldn’t be totally cloudy overnight. As southerly winds continue to pump more low level moisture into the area, lows are mostly held in the mid-60s to near 70.

Tomorrow (Tuesday): Our roller coaster ride in temps heads back up the next incline. Under partly cloudy skies, and mixed with high humidity, temperatures rise into the upper 80s and low 90s across most of the area. With some luck, a gusty south breeze might at least help keep you from boiling over in those mid-90s (or higher) heat indices.

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.


Fall preview (Erin/ekelly80 via Flickr)

Fall color: It won’t be long now until foliage season arrives. You’ve probably already noticed some early changes, primarily in stressed trees around the region. Popular Science shared a cool infographic for the country, showing when to expect peak color. The Foliage Network has also released their first report on the year, showing little to no color across the entire northeast so far. They also note that “[t]his year’s weather has set the stage for what could be a spectacular fall foliage season!”

Pollen update: Weed pollen remains the dominant type, at moderate/high. Mold spores and grass pollen are both moderate/high, and tree 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 · September 9, 2013