Today is Wednesday): There is another cold weather this morning, starting with the lowest level in the 20s and approaching 30. Abundant sunshine is at its best, with light winds in the afternoons to raise it into the mid-40s. Confidence: High
Tonight: Clouds are rising this evening and then the sky becomes mostly cloudy during the night as low pressure builds up to our south. A mix of light rain or winter could reach our southern and western suburbs around 4am. Nightly lows range from the upper 20s to the mid-30s. Confidence: Medium-High
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Tomorrow (Thursday): A brief winter mixing period is possible before 9 a.m., particularly in the north and west of DC, but any significant icing concerns should be confined to north of Frederick and west of Leesburg. It turns into a rainy day for the metro area, with rain increasing in the morning and sometimes heavy in the afternoon until evening. As the winds blow from the southeast in the late afternoon, afternoon temperatures should climb into the 40s. Confidence: Medium
tomorrow evening: In the evening, the rain moves from west to east, but the sky remains cloudy throughout the night. Thanks to a relatively light breeze from the south, temperatures drop from the mid-40s to below 50s. Confidence: Medium
Heavy rain comes early FridayBetween 06:00 and noon, it will likely end up as snowfall. A light coating of grass cannot be ignored, especially in the north and west of DC. The main story is falling temperatures and strong winds. Most of us start our day in our 40s, but we’re in our 20s to 30s at lunch time and close to 20 in the teens with clear skies in the late afternoon or evening. Westerly winds, usually in the 30-40 mph range, with a few gusts likely to 50 mph should dry everything out pretty well. But any remaining wet spots will certainly freeze from afternoon to evening (what we call “sudden freezing”). Confidence: Medium
Friday night Winds continue to blow hard at or above 30 miles per hour with mostly clear skies. During the night the lowest levels drop to the upper single digits, to the mid-tens, while wind chill drops to single digits down to minus -5 degrees. Confidence: Medium-High
christmas weekend partly to mostly sunny and absolutely cold. Both days start with morning lows in the upper single digits and approach 30 before tackling afternoon highs of 30 in the 20s. long. Not that windy on a Sunday, but still enough breeze to keep the wind from getting past the 10’s and as high as the 20’s. Confidence: Medium-High
High temperatures should return to the 30s and 40s on Monday and Tuesday.
Daily assessment of at least 1 inch of snow potential on a 0-10 scale for the coming week.
1/10 (→): As the Arctic front passes through the region early on Friday, the downpours could turn into snowfall before it ends. We don’t usually see buildup in such cases, but we can’t rule out a light coating, especially on grass north and west of DC.
