D.C.-area forecast: Nonstop steaminess with storms possible nearly daily


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

4/10: Slight improvements from Friday include a pinch of lower heat index readings and temperatures, along with slightly less chance of showers and storms. Still, one or two floods are possible.

  • Today: Chance of rain/storm, especially in the afternoon. Highlights: High 80s to low 90s.
  • This evening: Small chance of showers/showers. mosquitoes. Lows: Mid to above 1970s.
  • Tomorrow: Small chance of showers/showers. Highlights: Nearly 90s to mid 90s.

In a bit of a flush-and-repeat we’re used to during the dog days of summer, DC has pretty much non-stop mugginess ahead and essentially daily chances of showers and storms — especially during the afternoon and evening hours. Please get to safety quickly if you hear thunder. Monday can still be the day with the least chance of rain, in case you can focus on outdoor activities then.

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Today (Saturday): With mild dew points in the mid-’70s likely, heat index readings in the mid-’90s are likely in the hottest and most steamy spots. The thermometer may peak in the upper 80s to low 90s. The sky is partly to mostly cloudy, but we may end up seeing some more sunshine than Friday.

A few raindrops are usually possible at any time of the day, but the greatest (and only moderate) chance of showers and storms starts around noon. There should be fewer storms than Friday, but one or two storms can still be strong to severe. We have a small 5 to 10 percent chance of one or two floods. In the afternoon moderate southerly winds of around 10-15 mph are possible. Confidence: medium-high

This evening: An evening chance of showers and storms can extend into midnight, but before then any rainfall activity should decrease in intensity and coverage. The sky is likely to remain mostly cloudy even after the rain has ended. Mid to over 70s are the best we can do for low temperatures. Oof. Thanks to dew points in the mid-1970s that prevent the atmosphere from cooling much below that level. Confidence: medium-high

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Tomorrow (Sunday): The sky may offer more sunshine than Saturday, and the associated (hair-lower) showers and storm chances. With more sunshine, highs rise a little more to nearly 90’s in the mid-90s. But as the afternoon wears on, don’t forget to head inside when the thunder roars. Some showers may break out in the entire region, especially from noon.

In the afternoon there can be a moderate south-southwest wind. Do I need to mention how humid it will feel? Well, heat index values ​​around 100 degrees are possible – that is the combination of humidity with air temperature. Confidence: medium-high

Tomorrow evening: After sunset, the chances of rain decrease, but they are not completely out. There is a small chance of a shower or storm until the early morning hours. The sky slowly clears and each breeze calms as we approach dawn. Sultry low temperatures hover in the mid to upper 70s. Confidence: Average

Steaming can continue Monday and Tuesday, with high temperatures in the low to mid 1990s. Dew points can’t slide much, if at all, as once thought. This means that heat index values ​​in the low 100s are possible. Rain chances remain lowest on Monday vs. Tuesday. Nevertheless, a chance of rain and thunderstorms on both days is not excluded, especially in the afternoon and evening hours. Low temperatures lately have only fallen into the usual range, the mid to upper 70s. Confidence: Average

Read more about Capital Weather Gang’s reliability rating.

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