VICTORIA, Texas - Upper level high pressure has bridged across the State late today to shut down chances for meaningful rainfall for the rest of the week. The weekend looks rain-free, as well. The high pressure also seals in heat and humidity, making for stifling conditions approaching heat advisory criteria. Heat indices between 105 and 110 are expected each afternoon through the weekend, with overnight readings only dipping into the upper 70s. By early next week a weak tropical wave is expected to bring scattered showers and a few thunderstorms, then a cold front arrives early Wednesday to continue the rain chances. Only slight cooling is expected from the late July frontal system. Look for highs in the 90s, dropping into the upper 80s on Wednesday. Lows will remain in the 70s.