Massac County Weather ForecastUnited StatesILMassac County5783MetropolisBecoming Sunny5683BrookportBecoming Sunny5683Mermet LakeBecoming SunnyBig BayBoazBrookportCretaceous Hills Nature PreserveFort Massac State ParkHillermanJoppaMassac Forest Nature PreserveMermetMermet LakeMetropolisMetropolis Municipal AirportNew ColumbiaRound KnobSamothShady GroveUnionville