Massac County UV ForecastUnited StatesILMassac CountyVery high10.7MetropolisVery high UV, 10.7Very high10.7BrookportVery high UV, 10.7Very high10.6Mermet LakeVery high UV, 10.6Big BayBoazBrookportCretaceous Hills Nature PreserveFort Massac State ParkHillermanJoppaMassac Forest Nature PreserveMermetMermet LakeMetropolisMetropolis Municipal AirportNew ColumbiaRound KnobSamothShady GroveUnionville