This thought has occurred to me at times - it's an interesting one. There is a great video on youtube about the link between solar-induced geomagnetic storms and storm development:
more interesting is that fact that 'solar upticks' seem to appear with planetary alignments - this suggests that long-range weather models might be able to incorporate some element of potential solar influence - although how it would be incorporated is beyond my level of expertise. It would be interesting to know if any weather models do incorporate this type of link: planetary alignment -> solar uptick -> storm activity.
For our cold hopes, it is worth bearing in mind that for a little while there has been an 'earth-facing-solar-quiet' in operation, that dampens sunspot activity when they face earth - so the particular sunspot may well go to sleep for a while!
Picked all this up from Suspicious Observers: http://www.suspicious0bservers.org/