Massac County Weather ForecastUnited StatesILMassac County6481MetropolisRain Showers Likely6482BrookportRain Showers6379Mermet LakeRain Showers LikelyBig BayBoazBrookportCretaceous Hills Nature PreserveFort Massac State ParkHillermanJoppaMassac Forest Nature PreserveMermetMermet LakeMetropolisMetropolis Municipal AirportNew ColumbiaRound KnobSamothShady GroveUnionville