Slightly drier air will work in overnight but tomorrow will be very HOT! Temperatures will reach into the middle 90s with hazy sunshine and some mugginess. There could be a stray afternoon storm with the unstable air from the humidity. With temperatures in the 9's and dew points in the 60s, it will feel like it's close to 100! The National Weather Service has issued a Heat Advisory for eastern Hampden, Hampshire, and Franklin counties.