From the ABC 7 Weather team

D.C. Forecast: Sultry Sunday, then a stormy Monday

October 6, 2013 - 12:08 PM
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Look for yet one more exceptionally warm & humid fall day with highs near 90.  Partly sunny skies will turn cloudy overnight with rain & thunderstorms likely on Monday.

This Afternoon:
Partly Sunny, Hot, & Humid
Highs: 85-90
Wind: S 10-15 mph
Tonight:
Increasing Clouds, Muggy
Lows: 62-68
Wind: SE 5-10 mph
Monday:
Showers & Thunderstorms, Not as Hot
Highs: 75-80
Rain: S 10-15 mph/G 30

Yesterday was yet another day under the broiler as October continued to pretend that summer never ended!  The 89 degree high at Reagan, and the identical 90 degree readings at BWI and Dulles (the latter being a record for the date for the 2nd day in a row) are nearly 20 degrees above seasonal norms.  The high humidity made it feel like the low 90s - yes, heat indices still in October! - and the beaches at Rehobeth and Ocean City drew summer-like crowds.  The same high pressure ridge that has kept us hot since the month began will give us one more exceptionally hot day today before some much needed relief arrives on Monday.  Under partly sunny skies today's highs will again be near 90.

A strong cold front, now bringing soaking rains and damaging winds to the Midwest, is poised to move toward the the DC area late tonight and early tomorrow.  Monday will see an increase in clouds with showers and thunderstorms likely by afternoon.  The rain, which could last into the evening hours, could be substantial enough - up to an inch - that some flash flood warnings are possible.  It will also be a breezy start to the week with southerly winds gusting up to 30 mph.  Temperatures will be noticeably cooler  with highs from 75 to 80.

Tuesday will see a return to cooler fall weather with mostly sunny skies and highs near 70.  That same pattern with much lower humidity is expected to last through the rest of the week.  Enjoy your Sunday!

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