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Today: Mostly cloudy. 66-70. | Tonight: Slight chance of showers late. 50-55. | Tuesday: Showers likely, possibly heavy. 60-65. | Get Express Forecast by E-mail
For the last eight days, temperatures have been warmer than normal, with each of those days reaching the 60s, at least (including a record 70 at Dulles yesterday). We probably make it to 10 straight days above 60 before we cool off to more seasonal levels for the middle and latter part of the week. Tuesday’s the transition day with a period of some heavier showers possible.
Today (Monday): More clouds mean it may not be as glorious as Sunday, but it’s still remarkably mild. Highs run up to near 70 as southerly winds (10 to 15 mph) keep the warm tap turned on. While some sunny intervals are possible, especially in the morning, clouds tend to prevail. Confidence: Medium-High
Tonight: Cloudy and unseasonably mild. Lows only reach the mid-50s downtown with 50 or so in the colder suburbs. These temps are more characteristic of highs than lows. Late at night, we could see a shower (20-30%) chance, especially to the southwest. Confidence: Medium-High
For related traffic news, check out Dr. Gridlock. Keep reading for the forecast through the midweek...
Tomorrow (Tuesday): The day gets off to a cloudy, mild start. Low pressure will pass to our west and northwest during the day, dragging a cold front through region. As the front comes through, we’ll have showers over a period of several hours, which may be heavy at times. Timing is most likely between late morning and late afternoon. Highs reach the low-to-mid 60s before cooler air begins streaming in. Confidence: Medium-High
Tomorrow night: Partial clearing is possible in the evening. However, behind the cold front, an area of upper level low pressure swings through late at night, so there’s a 40% chance of light rain showers, which could mix with sleet and/or light snow in elevated areas in our north and west suburbs. Overnight lows range from the mid-30s in the cooler suburbs to the low 40s downtown. Confidence: Medium
With the exception of a dry cold front moving through Friday, high pressure more or less dominates our weather Wednesday through Sunday. So we’ll have a stretch of partly to mostly sunny, seasonably cool weather - with highs from the upper 40s to mid-50s (coolest Wednesday and Saturday), with overnight lows from the upper 20s to mid-30s (suburbs to city). Confidence: Medium