naanT

 forecastListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                String forecastValue= (String) parent.getItemAtPosition(position);
                Toast.makeText(getActivity(),forecastValue,Toast.LENGTH_LONG).show();
            }
        });