D.C.-area forecast: Heat eases, but humidity and rain chances endure

A somewhat subjective rating of the day’s weather, on a scale of 0 to 10.

6/10: Passable after recent heat. Could be much better.

  • Today: Partly sunny. Showers or storms possible late. Highs: Upper 80s to around 90.
  • Tonight: Showers or storms ending. Partly cloudy. Lows: Upper 60s to low 70s.
  • Tomorrow: Mostly cloudy. Showers or storms. Highs: Low to mid-80s.

Our big-time September heat wave is basically done, although it’s possible some spots touch 90 again today. A risk of showers and storms persists today and tomorrow. Sunday could feature some more widespread activity, for those who have missed out on the comparatively localized downpours of recent days. Humidity is in no hurry to go anywhere, sadly.

Today (Saturday): Similar to recent days, some showers and storms develop late in the day. They’re hit-or-miss, though — heavy rain in one spot and not much in another. Still on the warm and humid side, with temperatures trying for 90 in many spots. Confidence: Medium-High

Tonight: Showers or a storm remain possible through the night. It’s pretty spotty, but a random late-night rumble can’t be ruled out. Lows are in the upper 60s to lower 70s. Perhaps a patch or two of fog late. Confidence: Medium-High

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Tomorrow (Sunday): A more consolidated disturbance is passing by on the jet stream, which should help showers and storms be more widespread than in recent days. There could be some heavy rain and perhaps pockets of flooding, but the severe weather risk should be relatively low. With more clouds and rain around, temperatures are capped in the low and mid-80s. Confidence: Medium-High

Tomorrow night: Showers or storms may continue into the evening and night depending on the speed of the passing disturbance. Lows again are largely in the upper 60s and lower 70s. Confidence: Medium

There may be a relative lull in the stormier pattern for Monday. It’s still hard to rule out an afternoon storm or two. Highs are mainly in the mid-80s. Confidence: Medium

For now, it seems like it will be drier than not on Tuesday, as well. We’ll be watching a dip in the jet stream coming through the Great Lakes, but that wants to focus on Wednesday at this point. Temperatures head for the mid- and upper 80s. Confidence: Medium



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