Get current and future forecasts.

def get_future(self):
        """Get current and future forecasts."""
        now = dt.now()
        four_days = now + timedelta(hours=96)
        now = now.timestamp()
        four_days = four_days.timestamp()
        url = build_url(self.api_key, self.spot_id, self.fields,
                        self.unit, now, four_days)
        return get_msw(url)