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D.C. area forecast: Week ahead starts and ends swimmingly; midweek somewhat unsettled

Today’s Daily Digit

A somewhat subjective rating of the day’s weather, on a scale of 1 to 10.

A slightly chilly start is the only fault I can find with this day.

Express Forecast

Today: Mostly sunny. Highs: 70-75.

Tonight: Mostly clear. Lows: 44-54.

Tomorrow: Partly sunny. Highs: 73-78.


Temperature Map

Temperatures: Latest D.C. area temperature map. See interactive map on our Weather Wall.

Aside from a 36-hour or so stretch midweek, when some showers and thunderstorms are possible at times, this week’s weather is superlatively nice.

Today and tomorrow and then the period from Friday through Sunday (and perhaps Memorial Day as well) are dominated by comfortable 70s. This is cooler than normal and not exactly beach weather, but it helps make up for the spring we’ve hardly had now that we’re on the verge of summer.

nice day
Today (Monday): A chilly, even cold start to the day – with some upper 30s in some of our outlying suburbs, and 40s elsewhere.  But sunshine is in plentiful supply, lifting temperatures quickly through the 50s and well into the 60s by midday.  Afternoon highs reach the low 70s in most spots, with light winds from the northwest at around 5-10 mph. ConfidenceHigh

Tonight: Mostly clear and cool, but a notch milder than the night before.  Lows range from the mid-40s in our cooler suburbs to the low-to-mid 50s downtown.  The wind is mostly calm. Confidence: High

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

Tomorrow (Tuesday): Mostly sunny in the morning, with some increase in high clouds during the afternoon. High temperatures edge upward, reaching into the mid-to-upper 70s.  Winds are from the west around 5-10 mph. Confidence: Medium-High

Tomorrow night: A warm front scoots through the region and may trigger a round of showers and storms (40 percent chance). Clouds and winds from the south (at 5-10 mph) make for a much milder overnight period compared to the last several, with lows 55-60 (suburbs-city). Confidence: Medium


Wednesday’s the week’s warmest day, but also potentially the stormiest.  Southerly flow elevates temperatures to near 80, but an approaching cold front brings the chance of showers and thunderstorms in the afternoon and evening hours (60 percent chance).  Overnight lows Wednesday remain mild, ranging from the upper 50s to low 60s. Confidence: Medium

A cold front tries to push south of the region Thursday and just how far south spells the difference between a sunny and tranquil day or a variably cloudy day with shower and storm chances.  I’ll call for partly cloudy skies and 20-40 percent chance of showers and storms, but with the highest chance south of the District.  Highs are in the mid-to-upper 70s.  By Thursday night, the front should be safely south of the region allowing for the infiltration of drier, cooler air. Lows fall into the upper 40s in our north and west suburbs to the mid-50s downtown.  Confidence: Low-Medium

I’m pretty optimistic about the forecast for the Friday through Sunday period (and could extend into Monday, Memorial Day) in which refreshing high pressure builds in from the west and northwest. This favors partly to mostly sunny skies and highs in the 70s – a lot like this past weekend…but probably a few degrees warmer on balance. (The overnight hours should be mostly clear with lows in the upper 40s and 50s). The only wrinkle might be any weak disturbance zipping through the flow that could set off some afternoon pop up showers (20 percent chance Friday and Saturday).  Confidence: Medium

Jason is the Washington Post’s weather editor and Capital Weather Gang's chief meteorologist. He earned a master's degree in atmospheric science, and spent 10 years as a climate change science analyst for the U.S. government. He holds the Digital Seal of Approval from the National Weather Association.
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