Union County Weather ForecastUnited StatesIAUnion County4168CrestonBecoming Sunny4268AftonBecoming Sunny4367LorimorSunny4268ArispeMostly 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