Highs in the mid 90s every day for the foreseeable future. I don’t recall a stretch like this before.
It's pretty rare. With today (reached 91 at DCA) we have 16 days in a row. The record of 21 days in a row was set back in 1980 and 1988.
https://www.washingtonpost.com/weather/2020/07/09/washington-dc-hot-streak/Longest in the past 20 years was in 2011, which was 16 days in a row, so we are tied and will break that tomorrow. Monday and Tuesday are forecast to be around 90 by NWS, but after that, it's 91+ for the rest of the 10 day.
