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

10/10: Blue skies, low humidity, average warmth for June. A great way to end the week! Before heat arrives, ugh.


Today: Partly to mostly sunny. Some breeze. Highs: Around 80 to mid-80s.
Tonight:  A few clouds, light breeze. Lows: Upper 50s to mid-60s.
Tomorrow: More sun than clouds. Stray t’shower? Highs: Mid-80s to near 90.
Sunday: Sunny, hot, muggy. Highs: Low-to-mid 90s.

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Enjoy today’s low-humidity warmth while we got it. The heat builds tomorrow and is joined by the mugginess Sunday, as we embark on a heat wave that may last nearly a week. Do your best to get outside today to breathe in the freshness while it’s here! (Use sunscreen as needed.)

Today (Friday): Skies may start the morning partly cloudy, but we should turn mostly sunny by midmorning and beyond with blue skies dominating. Temperatures readily rise to seasonably warm levels, with highs around 80 to the low 80s, maybe a few mid-80s south of town. Mugginess levels remain un-humid, and we’ll probably all love the refreshing winds from the west-northwest. They may blow 10-15 mph during midday hours, waning by early evening. Ahhh … Confidence: High

Tonight: Other than a few passing clouds, the “Strawberry” full moon that rises in the east shouldn’t be obstructed much. Breezes generally stay light from the west and southwest. Temperatures don’t cool quite as much as recent nights, with lows mainly in the low-to-mid 60s, perhaps some upper 50s in the cooler spots north and west. Confidence: Medium-High

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Tomorrow (Saturday): We start to transition from warm to hot with highs shooting up into the mid-80s to near 90. Nothing too muggy but not crisp and comfortable, either! We could have some morning clouds and again later in the afternoon. But overall it’s another partly to mostly sunny day, with the slightest chance (less than 20 percent) of an isolated afternoon thundershower. Winds remain light, around 10 mph from the southwest. Confidence: Medium-High

Tomorrow night: Any early clouds should decrease throughout the night. Breezes remain very light, mainly out of the south-southwest. By just before dawn, lows range from the mid-60s away from the urban heat island (outside the Beltway) to near 70 downtown. Confidence: Medium-High


Sunday: Bright, sunny and decidedly hot, with summertime mugginess to boot. Low-to-mid 90s are likely, keeping DCA’s record high temperature of 101F out of reach (thank goodness). Still, 10-15 degrees above average will be uncomfortable. Take it easy with A/C breaks, shade, water — don’t overdo it. Our bodies will be more used to July heat by July! Confidence: Medium-High

Sunday night: Very clear with a decent amount of stars visible — but some haze may dampen their twinkle a bit. Muggy overnight lows hover in the low 70s downtown, with upper 60s possible elsewhere. Air may turn a bit stagnant as breezes die down overnight, so do consider air conditioning over open windows, perhaps. Confidence: Medium-High

Monday and Tuesday look like the zenith of this heat wave. Heat index levels could reach the upper 90s to even low 100s in a few spots, with air temperatures both days topping out in at least the mid-90s and plenty of sun. Record setting heat is possible, as it appears now. Mugginess is likely, with not much of a breeze, and little to no chance of a cooling shower or storm. We’ll refine details this weekend, stay tuned. Confidence: Medium-High