They don't make autumn days any better than this one. Marylanders will enjoy sunny skies today and temperatures near 70 degrees. That's five degrees or so above normal for the end of October. The kids should have a mild night for trick-or-treating, but the moon will rise late, so it will be dark on poorly illuminated streets.

The high-pressure system that's delivered this delightful weather is moving offshore today. That's already put us into a return (southerly) flow around the west side of the clockwise circulation around the high, and that explains the warmup.

But behind the departing high there's a cold front pressing in. It got a little moisture, but most will be squeezed out over the mountains, so we won't get any rain on the eastern slope, forecasters say. But the frontal passage will drop the daytime temperatures into the 50s for the rest of the week. Lows will slip into the 30s.

The high pressure system behind the front will bring us more clear, dry air, sunny days and starry nights - perfect for observing Comet Holmes over the weekend.

There's no rainfall at all in the forecast at least through Tuesday. While we wait for more rain, here's a nifty rainfall map the NWS whipped up to show the totals from last week's deluge.