D.C. area forecast: Skies slightly brighter for your Sunday; turning more summery toward midweek

Today’s Daily Digit

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

8
A bit brighter and a bit warmer bring an extra point to close out the weekend.

Express Forecast

Today: Early a.m. shower? Partly sunny, warmer. Highs: Near 80 to low 80s.

Tonight: Partly cloudy, comfortable. Stray evening shower? Highs: 60s.

Tomorrow: Partly sunny. Highs: Mid-80s.

FORECAST IN DETAIL

Marine air lingers overhead today, leaving us with skies that I’ll call “confused,” as sun attempts to break out above clouds trying to hold their ground. The good news is the marine influence keeps today’s highs cooler than average despite being warmer than yesterday, while high pressure to the north should be just strong enough to keep us mostly dry. As we move toward midweek though, we trend more toward the summer sweat, and chances for showers and storms return as well.

Today (Sunday): After some possible early-morning fog or even a shower, a continued light wind from the east should keep skies partly cloudy. High pressure to the north, though, should provide generally brighter skies than yesterday. Temperatures remain comfortable, running much of the day in the 70s, and with enough afternoon sun likely reaching near 80 to the low 80s for the daily max. Any afternoon showers or thundershowers should stay west and south of the metro area. Confidence: Medium-High

Tonight: Wouldn’t totally rule out an isolated evening shower. But for the most part tonight’s weather looks pretty pleasant. Skies may trend a bit clearer, though we’ll still call it partly cloudy with the possibility again of some overnight fog. Lows range through the 60s with light winds. Confidence: Medium-High

Keep reading for the forecast through midweek…

Tomorrow (Monday): As we start out the new work week, high pressure centered off the Northeast coast tries to take control. And while we should manage mostly sunny skies at times, there may be enough clouds to call it partly sunny on the whole. Once again most of us should stay dry, but we could see a shower or thunderstorm out west toward the mountains. The increase in sun leads to an increase in temperatures, with highs likely in the mid-80s and winds light from the south-southeast. Confidence: Medium

Tomorrow night: Winds finally transition to more fully from the south, and that translates into rising humidity. We’ll feel it during the overnight hours as temperatures are slow to drop beneath partly to mostly cloudy skies. Overnight lows turn more summer-ish, only falling to the upper 60s to low 70s. Confidence: Medium

A LOOK AHEAD

Humidity levels return to “normal” around here (i.e., a touch tropical) on Tuesday and we’ve got our first truly “summery” day of the astronomical season. Occasional periods of mostly sunny skies are countered by cloudier stretches that should keep temperatures a bit in check, but afternoon highs should still rise to the mid-to-upper 80s with a 30-40% chance of afternoon or evening showers and thunderstorms. Temperatures stay warm overnight, with a continued chance of showers and storms as lows likely fail to fall below 70.  Confidence: Medium

Wednesday looks to feature the week’s best chance of showers and thunderstorms, with odds around 50% as a cold front labors through the area. Between the clouds and any showers and storms, we should muster enough sun to boost temperatures to highs in the mid-80s to near 90. Confidence: Low-Medium

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Heat Tracker

29
90-degree days year-to-date
Yearly Average
36
Record Most
67 (1980,2010)
Record Fewest
7 (1886,1905)
Last Year
24

At a Glance

Tue.

thunderstorms
-- /91°

Wed.

thunderstorms
76° /93°

Thu.

partlycloudynight
76° /94°
Drop 50%

Fri.

75° /88°

Sat.

75° /90°

Sun.

75° /90°
National Airport
Dulles
BWI

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Brian Jackson · June 22, 2014