7:00 AM | **Rain-to-snow for a brief time on Tuesday as Arctic air arrives...potential record-breaking cold to follow**
Paul Dorian
6-Day forecast for the Washington, D.C. metro region
Today
Mainly sunny, mild, highs in the low-to-mid 60's
Tonight
Mainly cloudy, cold, chance for some rain late, lows in the upper 30’s
Tuesday
Mainly cloudy, turning windy and colder, rain may change to snow for a brief time, temperatures falling slowly through the 30's during the day from early morning highs
Tuesday Night
Becoming partly cloudy, breezy and very cold - perhaps record-breaking in spots, near 20 degrees for late night lows
Wednesday
Mainly sunny, very cold for mid-November, low-to-mid 30’s
Thursday
Partly sunny, still very cold for this time of year, lower 40's
Friday
Mainly sunny, not as cold, near 50 degrees
Saturday
Mainly sunny, cold, low-to-mid 40’s
Discussion
First let me mention that today is "Mercury transit day"...a rare astronomical event and the skies are cooperating (see perspectaweather.com for more. A much colder-than-normal air mass for this time of year will arrive in the Mid-Atlantic region early Tuesday. There will be a period of rain from late tonight into tomorrow morning which may change to snow for a brief time as the colder air filters into the region. Temperatures tomorrow night will drop to near 20 degrees in some spots and some records could fall by Wednesday morning. Temperatures will then struggle to reach the mid 30's on Wednesday – some 25 degrees below normal for this time of year. The unusual early season chill will stick around on Thursday and then there will be some moderation in temperatures at week’s end, but still remaining colder-than-normal.
Meteorologist Paul Dorian
Perspecta, Inc.
perspectaweather.com