DC Area Forecast: Rain from Ian arrives today and will continue through the weekend

A slightly subjective assessment of today’s weather on a scale from 0 to 10.

6/10: Despite clouds we have dry conditions until perhaps mid to late afternoon when #Ian’s rain starts to arrive.

  • Today: Chance of rain mid to late afternoon. Highlights: Mid 60s.
  • Tonight: Rain and wind increase. Low: Low to mid 50s.
  • Tomorrow: Cloudy, windy, humid. Highs: Low to mid 60s.
  • Sunday: Mostly cloudy with wind, showers. Highs: Close to 60 to mid 60s.

Ian’s remains are likely to bring us a rainy weekend. Slow and light rain moves in later today, with intensity and coverage increasing after sunset. The heaviest and most widespread rain will begin overnight, especially around and after midnight. Spot flooding is possible as waves of rain move through. Some dry moments are also possible. We may stay cloudy and humid through Tuesday, but at least the rain coverage and intensity isn’t constant or persistently heavy.

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Today (Friday): Any partial morning sun gives way to cloudy skies that are likely to become cloudy in the early afternoon. Light showers and waves of rain will become possible in the mid-afternoon and especially towards sunset. High temperatures may not reach the mid-60s until we see more sunshine and drier afternoon conditions than currently expected. Rainfall should remain light throughout the day. A few northeast winds near 25 mph are possible late in the day. Confidence: Medium-High

Tonight: Winds, showers and waves of rain become more stable and heavier with time. The heaviest rain, which could increase to a quick inch or more overnight, will arrive around midnight and into the early morning hours. Northeast wind gusting around 30 mph before dawn. Low to mid 50s are likely to be the coolest temperatures we see overnight. Confidence: Medium-High

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Tomorrow (Saturday): The rain can be most stable in the morning hours. Intensity should tend to decrease with time, but further showers can hardly be ruled out at any point during the day. Skies are likely to remain cloudy. Winds from the northeast may hit 35 mph once or twice. Rain could amount to another inch in the wettest places, while others won’t see a whole lot. High temperatures will top out in the low to mid 60s. Confidence: Medium-High

Tomorrow night: Breezes continue to slowly decrease, corresponding to the intensity of the rain. It can be light with periodic waves of showers. Skies will remain mostly cloudy as temperatures settle into the low to mid 50s. Confidence: Medium

Sunday: Occasional showers are likely, and perhaps a storm. A few waves may be moderate in intensity. The sky is mostly cloudy, with the possibility of some sunshine. Winds may pick up again towards 25 mph, but we will monitor. High temperatures are also a bit less certain, perhaps as cool as the near 60s to mid-60s. Confidence: Medium

Sunday evening: Showers and even a thunderstorm or two are possible. We will have to see when Ian’s remaining low pressure center comes closest to our area. Lows may hover in the mid-50s with cloudy skies. Confidence: Medium

Breezes and the intensity of the rain can only slowly diminish Monday and Tuesday. Highs should be near 60 to mid 60s as it looks now. This assumes showers, winds and mostly cloudy skies continue. If Ian slows, we could get a little more rain than currently expected. Confidence: Low-Medium

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