Forecast: Heat hangs around
FORECAST IN DETAIL
"Official" summer begins tomorrow, but we've already had over a week's worth of 90+ days this June, not to mention a handful in April/May. We'll definitely add to those totals as we could see nearly a week straight of daytime highs at or above the 90 mark. Early in the forecast period, a weak front knocks down the humidity a peg or two. But by midweek, the stickiness returns, and so do afternoon thunderstorm chances.
Today (Sunday): After a weak front washes out over the area this morning some clouds may linger through your morning coffee, along with the tiniest chance (<20%) of a shower. The front drops dew points a few degrees lower, but the difference in humidity is hardly noticeable. Heat remains as we reach the low-to-mid 90s under sunny skies. Winds light and out of the west at less than 10 mph. Confidence: High
Tonight: We'll be considerably less oppressive in the mugginess department, but still summer-like. Skies will be mostly clear, and temperatures drop to the low 70s to near 70 in the District, upper 60s outside the Beltway. With nearly calm winds, don't be surprised if some of our rural areas report fog by morning. Confidence: High
Keep reading to see if we'll cool down anytime soon....
Tomorrow (Monday): A new week begins with our 3rd day of highs in the 90s. High pressure is in control keeping our skies clear aside from some afternoon fair-weather cumulus. Winds out of the south slowly start to add to the humidity levels, but we won't be too uncomfortable with highs in the low 90s. Confidence: High
Tomorrow Night: Humidity levels build tomorrow night and it'll be another night we'll be thankful for central air. Skies will be partly cloudy, and overnight lows only drop to the low-to-mid 70s. Confidence: Medium-High
By Tuesday, I'm sure we'll be hearing "heat wave" thrown around. Highs themselves will likely be held in check, around 90, by increased afternoon cloudiness. But dew points will rise to the upper 60s, and I, for one, would rather they not. Nonetheless, expect a typical "dog-days of summer" type day, with the small chance of some late afternoon/evening T-storms (20%).
Overnight, any storms subside, and we'll have mostly cloudy skies and lows in the mid-70s. Confidence: Medium
Wednesday holds our best chances for rain this week. Don't expect it to bring much relief though as we'll still have quite a warm day. Partly sunny skies allow highs to likely crack 90, but scattered thunderstorms probably threaten by the afternoon (40% chance). Confidence: Medium
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