An upper-level cold air and attendant low are now forecast to drop further south and west than originally foreseen, at least per two major computer models. If this happens, the cold low will drop directly over Western Spain on Tuesday and Wednesday. This would result in some significant rains, especially over the eastern half of Andalucía.
Since other models show the low further east and with resulting less impact over the area, uncertainty should be highlighted. However, given the very dry winter thus far, any hope for rain is worth attending to. In any event, the low should depress temperatures region-wide by about 5 degrees.
Calling on the rain gods!