So here in SoCal I have to deal with maybe only 5-10 rainy days/year. (Don't hate me

).
For a while I've been carrying my raingear with me all the time (ikea poncho, packable rain pants), because I can't get in the habit of checking the forecast every day. But I'm tired of all the space it takes up and they're always in the way.
So I got the idea I'd find a free service online that would monitor weather forecasts and send me an email 48hrs before any predicted rain.
A little googling, and all I could find was too extreme (severe weather alerts from the national weather service) or too often (email the forecast every single day).
All I want is to be able to configure something to send me maybe 20-30 emails/year, whenever there is rain forecast within 48 hours.
Anybody know of an online service like that?
EDIT: The Answer, thanks to JReade, is IFTTT (If This Then That), which has an amazingly flexible infrastructure for setting up automated actions as responses to detectable conditions, including "if it's raining tomorrow then send me an email" (although this is the only one that I have seen that is remotely useful for me).
Everybody else, feel free to tell me how wonderful your life is because you check the weather or get an automated forecast in your email every single damn day.