Check the weather forecast for Vale and the Bragantina region this Thursday (23). After days of dry and hot weather, a cold front should change the weather in Vale do Paraíba, Serra da Mantiqueira and Litoral Norte between Thursday (23) and Friday (24). The State Civil Defense placed the São José dos Campos region on alert for the passage of the system. According to meteorologist Guilherme Borges, the cloudiness increases throughout Thursday, but the rain is expected to arrive in the Valley at the end of the day and gain strength overnight. "Between Thursday night and Friday morning is when this rain should concentrate more effectively across much of the Paraíba Valley," he explained. ? Click here to follow the g1 Vale do Paraíba channel and region on WhatsApp Forecast indicates a drop in temperatures in São José dos Campos. Reproduction/TV Vanguarda/Archive Thursday will still be hot, with a maximum of up to 26°C. On Friday, temperatures are expected to drop and remain between 21°C and 22°C in the region's main cities, such as São José dos Campos and Taubaté. In Serra da Mantiqueira, thermometers should register even lower temperatures. The instability continues on Friday, with rain showers also forecast in Serra da Mantiqueira and the North Coast. On Saturday, the weather remains closed, with lots of clouds and a chance of rain. On Sunday, the sun appears again and the temperature rises a little, reaching close to 25°C in the Valley. Civil Defense advises the population to avoid flooded areas, not face floods and seek shelter during storms with strong winds. See more news from Vale do Paraíba and the Bragantina region