Union County Weather ForecastUnited StatesIAUnion County5475CrestonBecoming Sunny5475AftonBecoming Sunny5475LorimorBecoming Sunny5474ArispeMostly SunnyAftonArispeCrestonCreston Municipal AirportCromwellGreen Valley State ParkKentLorimorMercer FieldShannon CityTalmage Hill Wildlife AreaThayerThree Mile Lake County ParkThree Mile Lake Wildlife Management AreaTwelve Mile Lake Wildlife Management AreaWallace Field Ultralight Flightpark