D.C. area forecast: Cooler today, then warming up ahead of midweek storm

March 9

Today’s Daily Digit

A somewhat subjective rating of the day’s weather, on a scale of 0 to 10.

7
Sunny highs approaching 50 not bad. But with a cool breeze it’s a bit of a letdown after yesterday’s 60s.

Express Forecast

Today: Becoming mostly sunny, cooler. Highs: Upper 40s to near 50.

Tonight: Clouds on the increase. Lows: Upper 20s to mid-30s.

Tomorrow: Warmth returns! Variably cloudy. Highs: Upper 50s to mid-60s.

FORECAST IN DETAIL

Saturday was the jewel of the weekend with superb highs in the 60s. In fact, we could have used the extra hour of evening daylight yesterday. Instead, we’ll get it today along with significantly cooler air and a cool breeze as well. Those 60s are on their way back though, and as we start the work week I suspect many will take advantage of the warmth on their lunch break.  For the midweek, all eyes are on a storm that should bring a decent dose of rain to the area and usher in cooler air again, maybe even cold enough for some snowflakes Wednesday night?

Temperature Map

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

Today (Sunday): Not many of us will be up early on this spring-forward Sunday, but those who are may see a cloudy start through early-to-mid morning as a weak front passes by, maybe even with a passing shower or flurry. By mid-to-late morning, skies clear and we’re on our way to another mostly sunny day. But we’re not nearly as warm as yesterday with temperatures spending most of the day in the 40s, perhaps briefly touching highs near 50 for some of us, and cool breezes from the northwest around 10-15 mph. Confidence: Medium-High

Tonight: Skies turn cloudier later in the evening and through the overnight thanks to a disturbance working its way by well to the north.  Our brief encounter with winds from the northwest ends as breezes switch around to come from the south at 5-10 mph. Temperatures still cool off nicely, dipping to the upper 20s to the mid-30s. Confidence: Medium-High

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

Tomorrow (Monday): We might not get the fully clear skies, but the warmth returns to start out the work week.  Mild breezes from the southwest near 10 mph scour out the cold, though potentially cloudier skies north of town may keep temperatures down a bit there. Skies range from partly sunny to mostly cloudy (again, more clouds north than south) as highs aim for near 60 to the mid-60s around downtown and south, perhaps holding in the upper 50s in the northern suburbs. Confidence: Medium

Snow Potential Index

A daily assessment of the potential for at least ~1″ of snow in the next week, on a 0-10 scale. More info

2 (↑) Rain may end with some sloppy snow Wednesday night, but preceding warmth makes any accumulations suspect.

Tomorrow night: Skies are partly cloudy with overnight lows in the rather mild 40s. Confidence: Medium-High

A LOOK AHEAD

Our mini-heat-wave continues into Tuesday.  It’s another iffy day on the sky conditions with skies varying from partly to mostly cloudy through the day. There’s nothing iffy about the warmth, though. With highs at least to the mid-60s, possibly several degrees higher, you can expect a long wait at any outdoor lunch locales. Skies remain partly to mostly cloudy Tuesday night as a storm builds to our southwest, with showers threatening toward morning and lows in the 40s. Confidence: Medium-High

Timing is still subject to change, but the way it looks now, the storm should reach our area from the southwest Wednesday morning. Rain is likely through much of the day. While we’re on the milder side of the storm, the rain and clouds should still hold highs to the upper 40s to low 50s. As the storm pulls out Wednesday evening or overnight, there’s a chance that cold air arriving behind the storm turns the rain into a wintry mix before the precipitation ends. We typically see little to no accumulation in these types of situations, but it’s worth watching. Confidence: Low-Medium

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