Autumn leaves on Oct. 21. ( Erinn Shirley via Flickr )

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

7/10: Enjoyably mild temperatures for another day before we start cooling down.

EXPRESS FORECAST

Today: Increasing clouds. Highs: 73-78.
Tonight: Showers likely, possible gusty storm toward morning. Lows: 60-65.
Tomorrow: Morning showers, then partly sunny, breezy. Highs: Near 68-74.

View the current weather conditions at The Washington Post headquarters.

FORECAST IN DETAIL

A sharp cold front sweeps through the region early Tuesday, ending our recent string of mild, beautiful days. As the front comes through, we can expect some heavy downpours and perhaps even a gusty storm late tonight into early Tuesday. The rain and front exit by midday Tuesday and then it trends substantially cooler midweek before temperatures moderate toward the weekend.

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Today (Monday): Cloud cover tends to increase as today wears on but, with the exception of our far western areas, we should hold off getting wet. Mild winds from the south, gusting up to around 20 mph, boost afternoon temperatures well into the 70s. Chance of showers in our far western areas reaches about 30 percent by 5 p.m. Confidence: Medium-High

Tonight: Showers are likely overnight and some heavy downpours are possible. We also have to mention the chance of thunderstorms, perhaps with some strong wind gusts, zipping through during the pre-dawn hours. Temperatures are mild — only easing back into the 60s. Confidence: Medium-High

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Tomorrow (Tuesday): Heavy showers and perhaps a rumble could accompany the morning commute, especially early, but then the rain should rapidly clear out by 11 a.m. or so. Rainfall totals probably average about 0.5 inches. By the afternoon, the sun will return at times which should allow temperatures to pass 70 briefly before cooler air starts to filter in. It’s breezy, as winds come in from the west and northwest at 10-15 mph. Confidence: Medium-High

Tomorrow night: Partly cloudy and turning noticeably cooler. Lows range from the mid-40s in our cooler locations to near 50 downtown. Confidence: Medium-High

A LOOK AHEAD

Wednesday and Thursday are the week’s chilliest days with highs only near 60 — despite intervals of sunshine — due to a pool of cold air moving over the region at high altitudes. Overnight lows dip to 40 to 45 in the city, with 30s in our colder areas and the potential for some frost. Confidence: Medium-High

Temperatures bounce back some Friday and Saturday with plenty of sunshine and highs 65-70. Lows are mostly in the 40s Confidence: Medium

Clouds increase Saturday night and Sunday with a chance of showers developing — especially Sunday. High Sunday should be in the 60s. Confidence: Low-Medium