def get_weather_at(self, timeobject):
        """
        Gives the *Weather* item in the forecast that is closest in time to
        the time value conveyed by the parameter

        :param timeobject: may be a UNIX time, a ``datetime.datetime`` object
            or an ISO8601-formatted string in the format
            ``YYYY-MM-DD HH:MM:SS+00``
        :type timeobject: long/int, ``datetime.datetime`` or str)
        :returns: a *Weather* object

        """
        return weatherutils. \
            find_closest_weather(self._forecast.get_weathers(),
                                 timeformatutils.to_UNIXtime(timeobject))