Flash flood watch Tuesday evening through Wednesday night for entire region *

Rain moved into the D.C. metro region between 3 and 4 p.m. this afternoon and it’s here to stay for a while.  Showery waves cycle through the region tonight and Tuesday while the potential for heavy rain may hold off until Tuesday night and Wednesday.

Through Tonight: Intermittent rain showers are a guarantee, though they may decrease in coverage and intensity late at night and towards morning.  Temperatures slide back just a few degrees, with lows around 50.  Winds are from the east around 10 mph.

Tomorrow (Tuesday): More intermittent rain showers, which may pick up a bit towards the late afternoon and evening hours.  Morning rain showers may be lighter and more scattered.  A steady wind from the east (15-20 mph, with some higher gusts) puts a brake on temperatures, with highs only in the mid-50s.  Rainfall totals through Tuesday evening aren’t all that impressive…probably around 0.25-0.5″.  The potential for heavier rain comes overnight Tuesday into early Thursday morning.

See my forecast through the weekend. And if you haven’t already, join us on Facebook and follow us on Twitter . For related traffic news, check out Dr. Gridlock.

The crescent moon rises over D.C. Saturday morning (Jim Knapp via Flickr)