8:45 a.m.: Some showers with a bit of thunder now in the far western suburbs and drifting east into western Fairfax County may try to continue east into or across the metro area over the next couple hours.
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Today: Partly sunny & humid. Isolated a.m. shower? 30-40% chance of p.m. storms. Near 90 to low 90s. | Tonight: Chance of a storm early. Upper 60s to mid-70s. | Tomorrow: Partly sunny & humid. Low 90s. 40-50% chance of p.m. storms. | A Look Ahead | Get Express Forecast by E-mail
No extreme heat, but no major breaks from typical summer warmth and moderate to high humidity through the weekend. A front stalled nearby is responsible for the somewhat stagnant pattern through Friday, with a chance of showers and storms each day. Eyeing the weekend, it seems like we should avoid any rain threat on Sunday, with Saturday a bit more uncertain.
Today (Wednesday): A pretty typical July day today with partly sunny skies, plenty of humidity and highs from near 90 to the low 90s (going for our sixth straight 90 or higher at National to start July). Can’t rule out an isolated morning shower, and starting mid-to-late afternoon we run a 30-40% chance of showers and thunderstorms. Winds are light from the south. Confidence: Medium-High
Most Likely Timing: 2-8 p.m.
Tonight: Shower/storm chances continue around 30-40% through early evening, after which any activity should dwindle or focus south and east of the area. Under partly cloudy skies, muggy lows only get down to the upper 60s to low 70s (suburbs) and low-to-mid 70s (downtown). Confidence: Medium-High
Keep reading for the forecast through the weekend...
Tomorrow (Thursday): Still partly sunny and humid, still hot with highs around the low 90s, and still a chance of showers and storms - this time about a 40-50% chance during the late afternoon into evening. Confidence: Medium
Tomorrow night: Scattered showers and storms are possible, with overall chances staying around 40-50%. The air remains really moist with lows in the upper 60s to low 70s. Confidence: Medium
Friday we’re still stuck with a stalled front somewhere nearby, and with low pressure possibly developing along the front, shower and storm chances go up a bit to 50-60%. Partly to mostly cloudy skies try to limit highs to the mid-80s to near 90, though the humidity remains in full force. Friday night should bring decreasing rain chances, though I’m not sure we’ll be completely out of the woods. Confidence: Low-Medium
For the weekend, let’s start with Sunday first, for which I have higher confidence that high pressure will supply a mostly sunny and likely rain-free day with highs in the upper 80s to low 90s. Saturday, there’s still a chance the cold front hangs around close enough for some clouds and even a pestering shower/storm chance as highs head for the mid-80s to near 90. All in all, the weekend should feature less humidity than than the few days before it, but still probably at least in the moderate range. Confidence: Low-Medium