Car Agony

Weird. I got in my car this morning and turned the key and got nothing. Dead. Not a noise. Not even a click. Then 15 seconds later (with the key know stuck in the ignition), I at least get a slight surge of electricity. I turn the key and it starts. Amazingly, it started the rest of the day, but I hate the feeling of not being 100% sure that your car will start. And it's not a good sign that my temperature gauge showed it was 45 degrees outside today. Something aint' right. [Edit: Sheesh. Weatherman Ron Jackson just told me from my TV screen that the temperature didn't get out of the 40s today. It didn't seem that cold.]