D.C. area forecast: Terrifically tranquil weather for fall’s first week

September 23, 2013

10:00 a.m. update: A deck of stratus clouds over the area has slowed the morning rise in temperatures but should continue to gradually erode through midday, with a mostly sunny afternoon still on tap.

Today’s Daily Digit

A somewhat subjective rating of the days weather, on a scale of 1 to 10.

8
A beautiful fall day but a touch cooler than ideal and a deduction for the Redskins

Express Forecast

Today: Mostly sunny. Highs 67-71.

Tonight: Mostly clear. Lows 42-53.

Tomorrow: Mostly sunny. Highs 71-75.

FORECAST IN DETAIL

Seldom is an entire week’s forecast so straight forward and so sweet.  We’re talking sunny highs in the 70s for the entire week, almost without exception. Two wrinkles: 1) Will an area of weak low pressure produce light rain late Wednesday? 2) Will a cold front arrive in time late Sunday to offer the chance of a few more showers?

nice day
Today (Monday): Mostly sunny and absolutely delightful.  After starting off in the high 40s and low 50s (jacket suggested), we mount a recovery into the upper 60s to near 70.  This could rank as the coolest September day so far this month, but not by a large margin. Winds from the north around 10 mph feel chilly in the shade.  Confidence: High

Tonight: Clear and quite cool, especially away from the city.  Lows range from the low 40s in the cooler suburbs to the low 50s downtown. Calm winds. Confidence: High

For related traffic news, check out Dr. Gridlock. Keep reading for the forecast through the weekend…

nice day
Tomorrow (Tuesday): A crisp start – 40s for most (except those close to the city), but a fantastic day overall.  Highs climb to 70-75 with a hardly a cloud in sight and very light winds. Confidence: High

Tomorrow night: Mostly clear and cool yet again.  Lows range from the low 40s in the colder suburbs to the low 50s downtown.  Light winds. Confidence: High

A LOOK AHEAD

Morning sunshine Wednesday but some high, thin clouds may increase in the afternoon, as low pressure scoots by to the south.  I can’t entirely rule out some light rain/sprinkles Wednesday evening or night (20 percent chance), but chances are dry air wins out.  Highs Wednesday are in the mid-70s, with lows Wednesday night 52-57 (suburbs-city). Confidence: Medium

Maybe some lingering clouds Thursday morning but then mostly sunny, splendid weather dominates the period from Thursday afternoon through Saturday.  Highs mostly range from 75-80, with overnight lows mostly in the 50s. Confidence: Medium-High

Sunday may be a nice day too, but there’s a chance a cold front sneaks in in time to generate a few showers late Sunday afternoon or evening (20 percent chance).  The front may also wait until Sunday night or even Monday.  Highs Sunday are probably in the upper 70s to around 80. Confidence: Medium

Jason is currently the Washington Post’s weather editor. A native Washingtonian, Jason has been a weather enthusiast since age 10.
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