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D.C. area forecast: Not hot, but kind of humid. Storms later today?

Today’s Daily Digit

A somewhat subjective rating of the day’s weather, on a scale of 0 to 10.

With temps probably failing to reach 90 again and no big changes from yesterday, the digit stands pat.

Express Forecast

Today: Partly sunny. Isolated afternoon storm? Highs: Mid-to-upper 80s.

Tonight: 40% chance of showers and storms. Lows: Mid-60s to near 70.

Tomorrow: Partly to mostly cloudy. Increasing chance of showers and storms late. Highs: Mid-to-upper 80s.


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.

The gorgeousness of last week is gone. But the Dog Days of August remain mostly missing in action. Sure, we do have a sampling of that dog-day humidity around town. But it is far from extreme, and temperatures remain benign with 90-degree days hard to come by through the forecast period. When’s the best chance of storms? Tonight and tomorrow night.

Today (Wednesday): Any patchy morning fog should give way to partly sunny skies for a period this morning into early afternoon. Clouds then likely increase for our mid-to-late afternoon, with a 30% chance of an isolated shower or storm through around 6 p.m. Humidity remains in the moderately muggy range as highs reach the mid-to-upper 80s. Winds are light, around 5-10 mph from the southeast. Confidence: Medium-High

Tonight: The chance of scattered showers and storms increases to 40% after 6 p.m. or so. The best chance of rain near and inside the Beltway may wait until after 8-9 p.m., but we’ll have to wait and see for sure. Otherwise, it’s a mostly cloudy and rather muggy night. Some areas of fog could form overnight as lows settle in the mid-60s to near 70. Confidence: Medium

For related traffic news, check out Dr. Gridlock. Keep reading for the forecast through the weekend…

Tomorrow (Thursday): Morning fog may be slow to lift, though once it does we should see some partial sunshine. Skies are partly to mostly cloudy on the whole, with highs heading back to the mid-to-upper 80s, accompanied by moderate humidity and light winds. We’ll probably avoid rain through much of the day, though can’t rule out a few showers or storms developing during the afternoon (20-30% chance). Confidence: Medium

Tomorrow night: An upper-level area of low pressure swings through, increasing our shower and storm chances to 50% for the evening and overnight. Otherwise, we’re still warm and muggy, with mostly cloudy skies and lows again in the mid-60s to near 70. Confidence: Low-Medium


Like the days before it, Friday does not look to be a washout by any means. But scattered showers and storms remain a risk, with a 30-40% chance mainly during the afternoon into Friday night. Daytime highs should manage the low-to-mid 80s, with perhaps a bit less humidity, followed by overnight lows in the mid-60s to near 70. Confidence: Low-Medium

An onshore flow is likely to provide considerable clouds this weekend, along with cooler temperatures and a somewhat muggy feel. Highs should stall in the upper 70s to, if we see enough breaks of sun, the low 80s, while Saturday night lows drop back to the 60s. A few light showers are possible, especially Saturday, but we should see plenty of dry periods through the course of the weekend. Confidence: Medium

Dan Stillman is a meteorologist and editor for the Capital Weather Gang. He earned an M.S. in Meteorology from Texas A&M University, and a B.S. in Atmospheric, Oceanic and Space Sciences from the University of Michigan.
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Dan Stillman · August 20, 2014

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