Until the middle of the afternoon, the region enjoyed clear skies, which boosted temperatures into the mid-50s. Some high clouds are starting to filter in, and they will gradually increase tonight. For Wednesday, both a warm front and cold front come through the area, bringing rain and cool temperatures.

Through Tonight: Clouds gradually lower and thicken, and it’s a bit chilly. We should have enough breaks in the cloud cover to see the International Space Station fly over the region between 7:27 and 7:30 p.m. tonight. Lows range from the mid-30s in the cooler suburbs to the upper 30s downtown. Winds are light from the southeast.

Wednesday: Rain is guaranteed, developing between 7 and 10 a.m. from southwest to northeast. It may be heavy at times between late morning and early afternoon, before a possible late afternoon lull. A cool wind from the east holds highs in the mid-to-upper 40s, although locations south of D.C. could spike a bit warmer into the 50s if the warm front moves through early enough. Rainfall amounts of a half inch or so are possible (with locally higher/lower amounts).

More showers are likely into Wednesday evening, and even a rumble of thunder.

See Matt Rogers’ 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.

Pollen update: Tree pollen is in the HIGH range at 445.05 grains/cubic meter and mold spores are LOW at 682.60 spores/cubic meter. (U.S. Army Allergen Extract Lab)

Valdez, Alaska snow: NOAA reports Valdez received 5” of snow Monday, bringing its seasonal total over 400”, 12.5 FEET above average. Washington, D.C.’s snow output, by comparison, is 0.5% of that 400” total.

Hawaii snow: Enough snow fell on the Big Island’s Mauna Kea summit last week for skiing and snowboarding runs. Checkout the pics.