D.C. area forecast: Somewhat muggy, a few shower and storm risks through Saturday

Today’s Daily Digit

A somewhat subjective rating of the day’s weather, on a scale of 1 to 10.

6
Some may like the 80+ p.m. temperatures. Fewer like the humidity (and pollen) that’s still around?

Express Forecast

Today: Slowly brightening skies. Increasing mugginess. Highs: 79-86.

Tonight: Showers, storms possible. Lows: 60s.

Tomorrow: Partly to mostly cloudy. Showers and storms possible. Highs: Upper 70s to low 80s.

Sunday: More sun than clouds. Highs: Low-to-mid 80s.

FORECAST IN DETAIL

If only we could acclimate faster to our new-found summertime heat and humidity. At least today holds promise that we could stay a couple degrees below yesterday’s heat. Our brief break in temperatures this weekend comes with showers and storms through perhaps Saturday evening. Sunday and Sunday evening may prove our best time for outdoor activities. Enjoy the respite and prepare for highs potentially nearing 90 again early next week. We may have to turn on that expensive air conditioning!


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.

Today (Friday): We could awaken to soupy conditions and patches of fog. Signs that our somewhat muggy air mass has set up shop. As the strong sun gets higher in the sky, it should burn through the fog, haze, and cloud cover to brighten things by afternoon. That’s when we bolt for the 80-degree mark, with almost all of us getting at least that warm, to perhaps a few upper 80s south and southwest of town. It could feel even muggier by sunset, so keep drinking that water. A few of us may see a few raindrops too, but only about a 10% chance of a passing shower. East and southeasterly breezes could be noticeable at times, blowing 5-10 mph. Confidence: Medium-High

Tonight: Clouds are persistent, with an increased (50%) chance of showers and possible thunderstorms scattered around the area. We may be able to get out of dinner dry, but I would still play it safe and carry an umbrella with me, especially if out long. Due to insulating clouds and persistent southeasterly breezes around 5-10 mph, temperatures only slowly drop into the low-to-mid 60s. Downtown could prove unlucky and hover in the upper 60s in a few spots. Confidence: Medium

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

Tomorrow (Saturday): This may be an umbrella forecast. Clouds hang tough for the most part, and showers and storms may develop (70% chance) but they could stay scattered and brief. I think gardeners shouldn’t expect much more than a quarter to a half inch in spots. There is a chance storms are fairly widespread late Saturday though. Ahead of the incoming cold front, we should experience 10-20 mph southwesterly breezes, helping to boost cloud-muted temperatures toward the upper 70s. Perhaps low 80s south of town in sunnier, drier spots. Confidence: Medium

Tomorrow night: Showers and thunderstorms (60% chance) should taper as we get through the evening, with conditions proving fairly tranquil by midnight. Southwesterly breezes 5-10 mph slowly shift toward the westerly direction. These breezes should prevent low temperatures from plummeting any cooler than the upper 50s to mid-60s (downtown). Confidence: Medium

Sunday: May finally show us greater sunshine, with fewer clouds and less haze, and even a bit less humidity (hopefully). Given the more prominent sunshine currently expected, we should easily get high temperatures back into the low-to-mid 80s by late afternoon. Oh, and get that sunscreen back out, please (especially from 10 a.m.-4 p.m.)! Confidence: Medium-High

A LOOK AHEAD

Sunday night: Skies should remain somewhat clear, with a mixture of clouds at times that allow through starlight. CWG teammate David Streit recommends taking “the first good look at Mercury about 10 degrees above the horizon around 9 p.m.” Temperatures take their time falling to pre-dawn coolest readings in the low-and-mid 60s. Confidence: Medium-High

Summertime average high temperatures arrive again (still ahead of schedule!) on Monday under variably cloudy, somewhat hazy skies. Yes we continue talking haze, thanks to muggy, humid-feeling dew points still remaining above 60. Combine that with upper 80s to low 90s (mainly south of town), and we are going to be chugging cold water again. Shower chances around 10% are possible, but they should hold off until overnight hours and into Tuesday. Confidence: Medium

Tuesday’s sunlight could be obstructed by occasional clouds, with shower and strong to potentially severe storm chances increasing by the afternoon hours (40% chance). Somewhat muggy high temperatures continue, similar to Monday, in the upper 80s to low 90s. I do still believe it could feel a bit stifling, especially during periods of direct sunshine. Confidence: Low-Medium

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