D.C. area forecast: A blissful weekend, but turning stormier after

EXPRESS FORECAST

Today: Partly to mostly sunny, breezy. Mid-70s to near 80. | Tonight: Mostly clear, cool. Near 50 to near 60. | Tomorrow: Mostly to partly sunny. Mid-70s to near 80. | A Look Ahead | Get Express Forecast by E-mail


FORECAST IN DETAIL


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Today (Saturday): A weak cold front continues pushing off to the east during the morning. There might be a few clouds around, particularly early and maybe again late, but sun likely increases through the day in general. Highs reach the mid-70s to near 80. Northerly winds around 10-15 mph may be gusty, particularly during the midday or early afternoon, then waning toward sunset. Confidence: Medium-High

Tonight: Skies remain mostly clear. Add a slackening wind and dew points in the 40s, and you’ve got a recipe for rapid cooling. Midnight readings dip to the 50s in the suburbs, while remaining in the 60s downtown. Lows may nudge into the upper 40s in a few spots, while D.C. stays closer to 60. Winds are light from the north. Confidence: High

For related traffic news, check out Dr. Gridlock. Keep reading for the forecast into next week...

Tomorrow (Sunday): Another delightful day is ahead, with a good deal of sun and less in the way of wind. I think it ends up partly to mostly sunny, but clouds with the upcoming storm system may be lurking close by. Whenever that’s the case, they can move in without much notice. If that happens, we’ll see some increasing clouds during the afternoon. But, all in all, no real worries as highs rise to the mid-70s and near 80. Uncertainty in sky conditions means I’m not ready to issue the Nice Day stamp just yet. Confidence: Medium

Tomorrow night: Clouds and moisture are on the increase, and that helps keep temperatures up a little bit. Cooler suburbs fall into the upper 50s, with temperatures downtown more likely to get to the mid-60s or so. Confidence: Medium

A LOOK AHEAD

By Monday, we should be dealing with considerable cloudiness and increasing chances of rain. It appears the Monday push of moisture won’t be as significant as what’s to come, but we’ll have a general risk (60% chance) of light to moderate patches of rain or showers arriving by afternoon or evening. Highs may be tempered by clouds and rain, but mid-70s to near 80 still seem a good bet as warmer air tries to push in ahead of an approaching front. Confidence: Medium

After a Monday night of showers remaining likely, Tuesday brings the risk of heavier activity as a strong front and a wave of low pressure along it move toward the area. It probably won’t rain all day, but it might rain at any point of the day (80% chance). The best odds for heavy rain should come during the midday into evening. If we can poke out any sun and/or get an extended dry period, temperatures could run to and past 80. Otherwise, 70s are likely.

Widespread rainfall amounts of 1”+ with spots of more (western zones favored for now) are possible before the system ends. Confidence: Low-Medium

Ian Livingston is a forecaster/photographer and information lead for the Capital Weather Gang. By day, Ian is a defense and national security researcher at a D.C. think tank.

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