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Tonight: Night showers or thunderstorms are possible, but more likely in the pre-dawn hours. Otherwise, it’s a bit cloudy and a bit muggier. Low temperatures hover in the upper 60s to low 70s. We can thank the gentle southerly winds for pumping in warmer, moister air.
Tomorrow (Monday): Early, patchy fog possible. On-and-off sunshine dances with hit-or-miss showers and storms. The typical July humidity has returned (dew points around 70 degrees), making high temperatures in the mid-80s feel closer to 90 degrees. South-southeast winds may pick up slightly in the mid to late afternoon, coinciding with the day’s highest chance for a thunderstorm or shower.
The chance of rain will fall quickly in the evening and it should become partly cloudy by midnight, but then a little fog before dawn is also possible. The atmosphere will be wet and humid, with low temperatures also hovering in the upper 60s to lower 70s.
See Molly Robey’s forecast to last through the middle of the week. Come chat tonight! Our weekly Sunday Sunset Live Q&A is in 8:28 in the evening on the YouTube, Facebook and Twitter.
How hot will it be later this week?
Our warmest temperatures of the year so far are headed our way. The intensity and duration of this next heat wave, which will begin in the middle of the week, is of some concern, with heat index values of around 105 possible by the end of the week. The duration looks relatively long, with moderate uncertainty as to whether it will end in the next work week.
According to the ranges you can see above from the European model via the Weather.us website, Friday and Saturday offer two chances – but not a guarantee – to hit 100 degrees. I don’t believe we’ve hit 100 in DC since Aug. 15, 2016. Be sure to come chat tonight during our weekly Sunday Sunset Live Q&A chat and we can discuss the details. Tune in at 8:28 pm
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