From the ABC 7 Weather team

Washington D.C. Forecast: Day 2 of the high heat and humidity

May 30, 2013 - 10:55 PM
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Reagan National reached 90 degrees again today.  The heat and humidity  will continue through the weekend.

Mostly Clear and Muggy
Lows: 60s to Around 70
Wind: S 5 m.p.h.
Hazy, Hot and Humid
Highs: Low 90s
Wind: SSW 8-12 m.p.h.
Hazy, Hot and Humid
Highs: Around 90
Wind: S 5-10 m.p.h.

The heat will last through the weekend but thunderstorms will be back in the forecast as well. Find out when to expect them here.

The Bermuda High continues centered over the Western Atlantic and it continues to act as a seasonal heat pump across our area. With the widespread excessive heat and humidity in place, it only takes a minor atmospheric impulse or localized wind circulation to set off isolated showers or downpours.

This overall pattern will remain unchanged until late Sunday after afternoon. Highs will be 90 degrees or a bit higher and isolated thunderstorms or downpours will be possible. At that time, a cold front will be west of the Appalachians but it may be close enough to help support scattered showers and thunderstorms. On Monday, the cold front will cross the area with increasing chances for showers and thunderstorms and cooler temperatures. By Tuesday, a cooler and drier area of high pressure will start building across the mid-Atlantic states.

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