MARSHALL – Temps are expected to hit the mid to upper 90s this week. The phrase, “it’s not the heat, it’s the humidity” will ring true once again with dew points forecasted in the 60s and 70s. The southern half of the state will really start to heat up on Wednesday, with temperatures reaching the upper 90s and heat indices in the triple digits. Those muggy conditions will continue into Thursday and Friday, while the northern half of the state is expecting temps to hit the upper 80s and lower 90s.