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After a beautiful start to the day, clouds have crept into much of the area, and they’ll continue to thicken and lower moving into the evening. Highs reaching near or above 70 are a bit cool for the beginning of October, but not too far from normal. We’ve got a mild and humid air mass heading in as a storm passes to our west. Rain is on the way too, but it might not end up being a lot.

Through Tonight: The first showers should begin to move into the area in the next few hours, and odds go up to likely (60% chance) overnight. Lows are mainly in the upper 50s and lower 60s as humidity creeps up and clouds hold in any heat from the day. That added humidity may also lead to some fog after midnight.

Tomorrow (Tuesday): Showers remain likely (70% chance) during the morning, and into the day, as skies are mostly cloudy throughout. It won’t rain all the time though, and we might not see all that much filling the buckets either -- perhaps a few tenths of an inch in spots. It will be much muggier, as we get a taste of summertime dew points for a while. Highs should range from the mid-70s to near 80. The rain threat should wane late.

See Jason Samenow’s 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.

Earthscape stamps: As part of National Stamp Collecting Month, the U.S. Postal Service is offering a set of forever stamps with images of America’s diverse landscapes from above. A dedication ceremony took place today at NASA’s Goddard Space Flight Center in Greenbelt. Stamps may be purchased at your local post office or online.

Pollen update: Tree, grass and weed pollen is all LOW. Mold spores are MODERATE.