D.C. area forecast: Some humidity, clouds, shower chances through the work week

Today’s Daily Digit

A somewhat subjective rating of the day’s weather, on a scale of 1 to 10.

6
Still murky/muggy, but another day of no 90s in August!

Express Forecast

Today: Partly to mostly cloudy. Chance of showers. Highs 84-87.

Tonight: Partly cloudy, shower chance.  Lows 65-69.

Tomorrow: Partly to mostly cloudy.  Scattered showers. Highs 84-87.

FORECAST IN DETAIL


Radar & lightning: Latest regional radar shows movement of precipitation and lightning strikes over past two hours. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

Our work week weather pattern is stuck in a rut producing lots of clouds, humidity and the occasional shower chance. Two high pressure areas – one building from the Deep South and one clinging to eastern Canada – are duking it out for control.  The southern high pressure sends in the muggy, warm air, but a stalled boundary between it and the cool high to the north continues to be the focus of cloud cover and some showers through Friday.

The latest trends for the weekend suggest the Canadian high may win out for a bit, offering a cooler flow from the east and north, stalling temperatures in the 70s instead of 80s, while keeping clouds around.

Today (Tuesday): Partly to mostly cloudy skies yet again with afternoon highs moving into the mid-80s.  We’ll watch for showers popping up around the area during the afternoon (30% chance).  Moderate humidity levels persist.  Light winds blow from the east and northeast today.  Confidence: Medium

Tonight: Partly cloudy with some mugginess continuing as lows drift down toward mainly the middle to upper 60s.  A running 30% chance of showers continues, particularly in the evening.  Light winds blow from the east at about 5 mph.  Confidence: Medium

For related traffic news, check out Dr. Gridlock. Keep reading for the forecast through the weekend…

Tomorrow (Wednesday): More of the same with partly to mostly cloudy skies that allow the sun to peek through every once in a while and highs cresting toward the mid-80s along with moderate humidity levels.  We have an ongoing 30% risk of widely scattered showers and storms mainly focused on the afternoon again.  Light breezes blow mainly from the east again.  Confidence: Medium

Tomorrow night: Partly cloudy with a slight chance of an evening shower or storm as lows toward dawn reach the middle to upper 60s.  Still a touch of mugginess in the summer air.  Confidence: Medium

A LOOK AHEAD

Thursday and Friday continue this fairly stagnant pattern idea of partly to mostly cloudy skies, highs in the 80s, moderate, but not high, humidity levels, and risks of showers and storms in the afternoon and evening (40% Thursday into Thursday night and 30% on Friday).  Lows Thursday and Friday nights under partly cloudy skies still in the mid to upper 60s.  Confidence: Medium

The latest trends for the weekend suggest we could see a stronger impact from a cool wedge of high pressure from eastern Canada.  Highs may only be in the upper 70s to around 80 with much lower chances of precipitation too.  Despite the drier good news, we may still be contending with cloud cover thanks to the flow from the east and northeast, but we’ll be watching for sun breaks at times.  Lows Saturday night under partly cloudy skies could be a bit cooler than the week with low to middle 60s range.  Confidence:  Low-Medium

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