The Chicago area is expected to receive much-needed rain starting early Friday morning, following a period of dry weather and moderate drought. Thunderstorms are likely Friday night, especially south and east of the city, with gusty winds being the main threat. Temperatures will climb to the upper 80s on Friday but will drop to the low 70s by Monday and Tuesday. Sunny conditions are expected on Saturday, with a better chance of rain on Sunday as temperatures cool down. The dry weather pattern is expected to end next week, with rain and thunderstorms forecasted from Monday through Thursday.