Sample Volley Code

gistfile1.txt

//Remember to put the line below into your build.gradle's dependencies
//compile 'com.mcxiaoke.volley:library:1.0.15'

private void refreshWeather() {
        RequestQueue queue = Volley.newRequestQueue(getActivity());
        String url = "http://api.openweathermap.org/data/2.5/forecast/daily?q=94043&mode=json&units=metric&cnt=7";
        JsonObjectRequest req = new JsonObjectRequest(url, null, new Response.Listener<JSONObject>() {
            @Override
            public void onResponse(JSONObject response) {
                if (getActivity() == null) {
                    return;
                }

                try {
                    String cod = response.getString("cod");

                    JSONArray list = response.getJSONArray("list");
                    for (int i = 0; i < list.length(); i++) {
                        JSONObject jsonObj = list.getJSONObject(i);
                        JSONObject temp = jsonObj.getJSONObject("temp");
                        Log.d("Day " + i, temp.getString("day"));
                    }

                } catch (Exception e) {

                }
            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                if (getActivity() == null) {
                    return;
                }

                NetworkResponse response = error.networkResponse;
                JSONObject obj;
                String message = "";
                try {
                    obj = new JSONObject(new String(response.data));
                    JSONObject errorObj = obj.getJSONObject("error");
                    message = errorObj.getString("message");
                    Log.d("error", obj.toString());
                } catch (JSONException e) {

                }

            }
        });

        queue.add(req);
    }