CommuteCast: Heat Returns with Humidity

Natural fireworks to visit on the 4th?

Sure signs of summer are all around -- heat, haze and humidity, tourists, tropical activity in the Atlantic, and threats of thunderstorms. Today we head into the holiday weekend on a hot note as temperatures rise to near or just above 90 in most locations. Humidity is also on the increase, but it's still bearable, and any chance of rain looks to hold off until at least late evening.

Tonight: Humidity will noticeably tick up tonight, and rising dew points will keep lows from falling too far. Expect readings in the mid 70s in D.C. and down to around 70 in the suburbs. A cold front, that is scheduled to park itself near the region for a while, will be close enough to threaten isolated overnight showers or thunderstorms. Anything that forms may produce periods of heavy rain and lightning.

Independence Day: It's going to be a seasonably warm and muggy one, with highs reaching the 80s, oh and there is a chance of thunderstorms. Need to know more? Check out our in-depth July 4 forecast. Happy 4th!

Check Josh's full forecast through the holiday weekend and beyond, and also BeachCast if you are escaping to the shore.