A frontal system will stall nearby today and a series of disturbances will track along this boundary zone over the next few days. Each of these disturbances will raise the chance of showers and thunderstorms with the best chance of rain likely coming on Thursday when strong low pressure passes through the region. This late week low pressure system will drag a cold front across the area and it’ll turn cooler for Friday, Saturday, and Sunday.
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This will be an unsettled week in the Mid-Atlantic region with multiple chances of rainfall following a very cool and wet weekend. It turns warmer today with afternoon highs not far from 80 degrees, and there will be the chance of PM showers and thunderstorms with the approach of a cool frontal system. This front will then stall nearby and a series of disturbances will track along this boundary. Low pressure will move across the Mid-Atlantic region on Thursday and it'll drag a cold front through by the end of the week.
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It turns cooler today despite partial sunshine as a low-level flow of air out of the east-to-northeast brings in marine air from the western Atlantic Ocean…all supported by building high pressure over New England. This cool down will intensify over the weekend with both days featuring quite cool conditions, plenty of clouds, and a high risk of some rain. Looking ahead, it appears the wetter pattern that begins this weekend will continue next week as there will be numerous chances for rain.
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A cool front will approach the region later today, but it’ll be lacking in moisture and temperatures ahead of it should climb to unseasonably warm levels and perhaps into record-breaking territory (DCA 91 degrees, IAD 88 degrees…both records set in 2018). It turns cooler on Friday as a low-level flow of air out of the east-to-northeast develops along the I-95 corridor. This cool down will intensify over the weekend with both days featuring quite cool conditions and temperatures likely limited to the 60’s for afternoon highs. In addition, both days will feature plenty of clouds and a high risk of shower activity to go along with those cool conditions. The return of some sunshine on Monday will help to boost temperatures back up into the 70’s as high pressure builds across the Mid-Atlantic region.
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A stalled-out and weakening frontal system can generate another shower or thunderstorm today in the DC metro region before high pressure takes control of the weather for tonight and Thursday. After a mainly clear and cool night, sunshine on Thursday will boost temperatures to the lower 80’s for afternoon highs and it looks comfortably warm on Friday to end the work week. The weekend is likely to turn much cooler and wetter as a cold front approaches the area from the west and there is a low-level flow of air off the ocean.
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The combination of a back door cool front stalled to our northeast and a weakening cold front approaching from our west will increase the chances for showers and thunderstorms from late today into Wednesday. Any thunderstorm that forms can be on the strong side with brief heavy rainfall and small hail. Temperatures climb towards the 85 degree mark this afternoon and will be confined to near 80 degrees on Wednesday and Thursday.
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After a warm frontal passage on Sunday, the warmest air of the season so far will push into the area and afternoon temperatures today should reach the upper 80’s...perhaps even touch 90 degrees in some spots. A cold front approaches the area on Tuesday and its approach will raise the chances of late day and early evening showers and thunderstorms as temperatures climb to the middle 80’s. It stays somewhat unsettled at mid-week with additional showers and thunderstorms possible and highs backing down a bit to the lower 80’s for Wednesday and Thursday afternoons.
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After a chilly start to the day, temperatures today should climb to the lower 60’s for afternoon highs and similar conditions are expected on Saturday. However, by Sunday, a big-time warmup will begin in much of the eastern US and temperatures here will soar into the low-to-mid 80’s as high pressure pushes off the east coast. It turns even warmer on Monday with temperatures climbing into the mid-to-upper 80’s across the DC metro region. A cold frontal system approaches the area late Tuesday, and it could generate showers and thunderstorms in the area.
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A cold front passed through the region on Wednesday and ushered in a chilly air mass that will stick around into the upcoming weekend. Temperatures today will have a hard time reaching the 60 degree mark which is well below-normal for this time of year and are likely to drop back to near 40 degrees in many spots late tonight for the overnight lows.
A big-time warmup, however, is on the way for the eastern US beginning this Sunday after high pressure pushes off the coast. Temperatures on Sunday afternoon are likely to climb to 80 degrees around here and then climb to the upper 80’s on Monday.
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A cold front will slide across the region today bringing with it a few isolated showers, maybe even a rumble of thunder…not at all a significant rain event. The passage of the cold front will usher in another cool air mass to the Mid-Atlantic region for the remainder of the second half of the week. Temperatures are likely to drop to near 40 degrees in some suburban locations by early tomorrow morning and again early Friday morning, and there can be some patchy frost in far N/W outlying areas.
A major temperature pattern change begins later in the weekend with a big-time warm-up for the eastern states. High temperatures around here on Sunday afternoon should be at or slightly above the 80 degree mark and the middle 80’s are likely for Monday afternoon.
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