The weather word of the day was tranquil, with sunshine, light winds, and relatively mild temperatures. Saturday’s similarly calm, while warmer – perfect for shoppers or spending some time outside. But plan to spend much of Sunday inside as rain falls for the balance of the day.

Through Tonight: Temperatures fall back quickly under starry skies. Most spots are into the 30s by 7 or 8 p.m., with lows ranging from the low-to-mid 20s in the cooler suburbs to 30 or so downtown. Light winds.

Tomorrow and tomorrow night (Saturday): While we won’t come close to matching last Saturday’s 72, most of us will take sunny and 55 on December 28 (temperature range: low 50s northwest of town, upper 50s south of town). Winds are light from the southwest around 5-10 mph. Increasing clouds Saturday night with lows in the mid-30s in the colder suburbs to near 40 downtown.

Sunday: Rain develops early-to-mid morning and may be heavy at times. An inch or so of rain may fall. The clouds and rain hold down temps, with highs 40-45. Winds initially are from the south, shifting to out of the north later in the afternoon.

See Camden Walker’s forecast into early next week. And if you haven’t already, join us on Facebook and follow us on Twitter . For related traffic news, check out Dr. Gridlock.

Moonlit GW Parkway. December 24 (Kevin Wolf via Flickr)

International Space Station flyby: At 6:27 p.m. tonight, the International Space Station will pass through our skies. It will enter the sky at 10 degrees above the west-northwest part of the sky and exit 31 degrees above south-southeast. Link: NASA’s Spot the Station Web site

Additional links of the day:

For the Meteorologist [Tucker Barnes, FOX5] Who Has Everything: Nike ‘Weatherman’ Shoes (MediaBistro)

Ice forming in the nearshore waters of Lake Michigan (CIMSS Satellite Blog)

Storm Brings Near Record Low Pressure to the U.K. (Weather Underground, Christopher Burt)