Coastal Flood Warning until 2 a.m. Sat. (then Coastal Flood Advisory 2 a.m. to 4 p.m. Sat.) for D.C./Arlington/Falls Church/Alexandria - moderate flooding tonight, minor flooding Saturday.

Panned out to be a pretty nice Bike to Work Day today with a dry morning commute, just a few midday showers, highs in the low 70s, and what looks to be a mostly dry commute home, but with the chance of an isolated shower. Otherwise, we’re on track for a warmer weekend and plenty of sun to start. Have a good one.

Radar & lightning: Latest D.C. area radar shows movement of precipitation and lightning strikes over past two hours. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

Through Tonight: A fair amount of clouds could still produce a few isolated showers or thundershowers into evening, then just partly cloudy overnight with light winds and lows in the mid-50s to low 60s (suburbs to city).

Tomorrow (Saturday): Great day to live it up like there’s no tomorrow - partly to mostly sunny, not too humid, and afternoon highs near 80 with a light breeze from the northwest or west. Just the slightest chance of a late afternoon or evening shower/t’storm in the D.C. area, with a slightly better chance (but still pretty low) up around Baltimore for those headed to the Preakness or the Nats-O’s game at Camden Yards (don’t forget the sunscreen).

Sunday: Humidity is more noticeable and with a little more in the way of clouds, too, as light winds blow from the south or southeast. But all in all, partly sunny with highs in the low-to-mid 80s is quite nice, even with a 30% chance of a shower/storm during the afternoon into evening.

See Camden Walker’s forecast through early next week. And if you haven’t already, join us on Facebook and follow us on Twitter

Mississippi flooding: Jeff Masters at Weather Underground reports that the Mississippi River flood of 2011 has likely peaked, cresting at all-time record levels yesterday at Vicksburg, MS (57.06’) and Natchez, MS (61.91’). While the floodwaters are no longer rising, they’ll remain high for weeks and could still threaten levees and floodgates, especially if more heavy rain occurs. Related - Photo Gallery: Watching the Rivers Rise.

Pollen update: Walter Reed says mold spores are HIGH & trending up - 33543.64 grains/cubic meter. Trees (83.39 grains/cubic meter) and grasses (7.99 grains/cubic meter) are both HIGH for our area.