Here's a cool freebie from Terroir Seeds, home of Underwood Gardens: they have a free garden journal that you can print out and use.
When you go to this link, scroll down until you see a link to the garden journal. It includes pages for seed-starting records, weather observations, soil temperatures needed for starting vegetable seeds and so on. All you have to do to view the journal page by page is to move your mouse up near the top of the page and use the navigation buttons there.