From the ABC 7 Weather team

D.C. Forecast: A very hot & moderately humid day

June 10, 2012 - 12:07 AM
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Look for plentiful sunshine and slightly more humid air on what will likely be the hottest day of the year to date.  With highs expected in the low 90s and Code Orange air quality, take it easy outdoors.

This Afternoon: Sunny & Hot, A Bit More Humid

Highs: 89-95 | Wind: NW 5/SW

Tonight: Partly Cloudy & Mild

Lows: 64-69 | Wind: S 5-10 mph

Monday: Mostly Sunny & Very Warm

Highs: 86-90 | Wind: S 10-15 mph

The calendar may say it is still astronomically spring, but there was no seasonal confusion Saturday on what was a true summer's day.  The high of 91 at Reagan National tied a similar reading back on May 29 as the hottest of the year. That reading, combined with day-long sunshine and comfortable humidity levels, makes summer's official debut, coming on June 20, look like a mere formality.

Sunday will confirm meteorological summer is definitely here as the mercury heads for the lower 90s and humidity levels inch up a bit.  But even though dew points will near 60 degrees, the effect will not be too oppressive: no dangerous heat indices are expected.  Air quality though has deteriorated some and thus the Council of Governments is issuing a Code Orange air quality alert for today. The young, the elderly and those with respiratory concerns should use caution if outdoors.

As this weekend's high pressure drifts to the east, a cold front will approach late Monday and could set off showers and thunderstorms.  With plenty of moisture in place, some heavy downpours could occur into Tuesday. The front is expected to stall to our east and give us a few days of unsettled weather with daytime highs in the lower 80s and a threat of showers throughout.  Drier, sunnier days should return by week's end.

Don't forget the sunblock and the hat as you enjoy this summery Sunday!  

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