Forecast: Heavy rain briefly interrupts summer
Warmth returns tomorrow, but no intense heat on horizon
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updated at 12:15 p.m.; originally posted at 5 a.m.
Today: Overcast with rainy a.m., occasional p.m. showers. Mid-to-upper 70s | Tonight: Chance of more rain. Mid-to-upper 60s. | Tomorrow: Becoming partly sunny. 20-30% chance of showers/storm. Mid-to-upper 80s. | A Look Ahead | Get Express Forecast by E-mail
FORECAST IN DETAIL
Summer is interrupted for the second time this week. After an overcast and showery Sunday with highs only near 80, it's an even rainier and cooler day today. It's all part of a shift in weather pattern that has us facing no intense heat in the foreseeable future, but rather a return to warm and moderately humid conditions starting tomorrow. Shower and storm chances threaten a comeback this weekend, though only in the low-to-moderate range for now.
Today (Wednesday): Rain that was moderate to heavy at times for much of the morning -- resulting in some flooding and water rescues -- becomes lighter and more intermittent during the afternoon as the steadiest and heaviest stuff pulls away to the east/northeast. Mid-to-upper 70s is about the best we can do for highs with overcast skies all day long. Confidence: Medium-High
Rain totals have mostly fallen in the 0.75"-3" range with some locally heavier and lighter amounts. The jackpot has been southern to central Montgomery County (with a report of more more than 3.5" in Rockville), northern Fairfax County and northwest D.C. See radar-estimated storm totals here.
P.M. Commute & Tonight: If it holds together (50% chance), another batch of steadier, heavier rain could arrive by or during the commute home and last into a good part of the evening, potentially causing more flooding problems. Even if that batch doesn't hold together well, there's a good chance of at least occasional lighter shows, which may (40% chance) linger at times overnight as well. Some drizzle, mist and/or fog are also possible. Lows mainly settle in the mid-to-upper 60s with continued cloudy skies. Confidence: Low-Medium
Keep reading for the forecast through the weekend...
Tomorrow (Thursday): While higher pressure tries to dry us out, we still run a risk (20-30% chance) of a couple showers and an afternoon thunderstorm. Clouds could be slow to clear during the morning, with a decent chance of at least partial sunshine in the afternoon. With enough sun, highs should get to the mid-to-upper 80s. Humidity's in the moderate to high range. Confidence: Medium
Tomorrow Night: It's a quiet and partly to mostly clear night with lows in the mid-60s (coolest suburbs) to near 70 (downtown). Confidence: Medium-High
High pressure holds court on Friday. The result is a partly to mostly sunny and warmer day as highs likely climb to near 90 or into the low 90s. Humidity remains noticeable but not too bad. Got plans Friday night? ... nothing to worry about as far as the weather is concerned. Confidence: Medium-High
Our warm, but not unusually so, pattern persists this weekend. Shower/storm chances are slight on Saturday with partly to mostly sunny skies, and about 20-30% on Sunday as a cold front getting closer from the west increases the clouds. Highs max out in the mid-80s to near 90 with morning lows in the mid-60s to near 70. Humidity stays in that middle range -- could be better, could be worse. Confidence: Medium
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