Get buienradar forecasted precipitation.

def __get_precipfc_data(latitude, longitude):
    """Get buienradar forecasted precipitation."""
    url = 'https://gpsgadget.buienradar.nl/data/raintext?lat={}&lon={}'
    # rounding coordinates prevents unnecessary redirects/calls
    url = url.format(
        round(latitude, 2),
        round(longitude, 2)
    )
    result = __get_url(url)
    return result