I've currently written an XML parser to pull the yahoo weather into an intraweb application I'm developing for the company I work for. Weather effects what we do so I thought it would be a good idea to do this. My problems is when I try and pull this in, everything works fine. The 5-Day forecasting on the other hand does not. I'm only able to pull the very next day, and nothing further past that. Any idea what the problem can be. I know that it's on a 0 sum and the [0] attitude pulls current day, then [1] pulls the next day. But for some reason [2] and so are do not pull in advance I keep getting that it's not a reference to an object.

Here is my code:
CODE
mlDocument weatherDocknox = new XmlDocument();
        weatherDocknox.Load("http://xml.weather.yahoo.com/forecastrss?p=USTN0268&u=f");

        XmlNodeList wtitleknox = weatherDocknox.GetElementsByTagName("title");
        XmlNodeList wconditionknox = weatherDocknox.GetElementsByTagName("yweather:condition");
        XmlNodeList wforecastknox = weatherDocknox.GetElementsByTagName("yweather:forecast");
        XmlNodeList wtempknox = weatherDocknox.GetElementsByTagName("temp");
        XmlNodeList watmosphereknox = weatherDocknox.GetElementsByTagName("yweather:atmosphere");
        XmlNodeList wastronomyknox = weatherDocknox.GetElementsByTagName("yweather:astronomy");
        XmlNodeList wwindknox = weatherDocknox.GetElementsByTagName("yweather:wind");

        double tempValue = XmlConvert.ToDouble(wconditionknox[0].Attributes["temp"].Value);

        divtitleknox.InnerHtml = "<font size=4>" + wtitleknox[2].InnerText.Replace("Conditions for ", "") + "</font>";
        divconditionsknox.InnerHtml = "<b><u>Current Conditions</u></b> <br />" + "<font size=4>" + wconditionknox[0].Attributes["text"].Value + " <br/></font> " +
            "<font size='10'><span style=\"color: " + (tempValue <= 32 ? "#15C4ED" : "#81DEF5") + "\">" + tempValue + "&deg F</span></font><br/>" +
            " <b>High</b>: " + wforecastknox[0].Attributes["high"].Value + "&deg F<br />" +
            " <b>Low</b>: " + wforecastknox[0].Attributes["low"].Value + "&deg F";

        string imageDiv = divimageknox.InnerHtml = "<img src=\"http://l.yimg.com/a/i/us/nws/weather/gr/" + wconditionknox[0].Attributes["code"].Value + "d.png\">";

        divatmosphereknox.InnerHtml = "<b>Humidity</b>: " + watmosphereknox[0].Attributes["humidity"].Value + "%<br /><b>Visiblity</b>: " + watmosphereknox[0].Attributes["visibility"].Value +
            " mi<br /><b>Wind</b>: " + wwindknox[0].Attributes["speed"].Value + " mph";
        divastronomyknox.InnerHtml = "<b>Sunrise</b>: " + wastronomyknox[0].Attributes["sunrise"].Value + "<br /><b>Sunset</b>: " + wastronomyknox[0].Attributes["sunset"].Value;

        //Day 1
        divforecastknox.InnerHtml = wforecastknox[1].Attributes["day"].Value + "<br> " +
            wforecastknox[1].Attributes["date"].Value + "<br />" +
            "<img src=\"http://l.yimg.com/us.yimg.com/i/us/we/52/" + wforecastknox[1].Attributes["code"].Value + ".gif\"> <br/>" +
            " <b>High</b>: " + wforecastknox[1].Attributes["high"].Value + "&deg F<br />" +
            " <b>Low</b>: " + wforecastknox[1].Attributes["low"].Value + "&deg F";
        //Day 2
        divforecast2knox.InnerHtml = wforecastknox[0].Attributes["day"].Value + "<br> " +
            wforecastknox[0].Attributes["date"].Value + "<br />" +
            "<img src=\"http://l.yimg.com/us.yimg.com/i/us/we/52/" + wforecastknox[0].Attributes["code"].Value + ".gif\"> <br/>" +
            " <b>High</b>: " + wforecastknox[0].Attributes["high"].Value + "&deg F<br />" +
            " <b>Low</b>: " + wforecastknox[0].Attributes["low"].Value + "&deg F";
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