The sky is a better weather forecast than your phone. Here’s how to read it.

Lost signal on a gravel road last summer and realized I had absolutely no idea how to read the weather without an app. Felt stupid. Started paying attention.

Turns out it's not that complicated. A few things I've learned since then that have actually kept me dry (or at least kept me from being surprised):

— There are really only four cloud shapes that matter. Cirrus means rain in a day or two. Mackerel sky means showers that come and go. A cumulonimbus with sharp edges means turn around, that's not rain, that's hail and lightning. Lenticular clouds over a ridge mean don't cross that ridge today.

— Your Garmin is a barometer, and you're probably ignoring it. Calibrate your altitude at camp. If it says you climbed 100 feet overnight, pressure dropped. Weather incoming. If it says you descended, you're good.

— A sudden temperature drop on a hot afternoon means a thunderstorm's outflow is hitting you. You have about 15 minutes.

— When everything goes quiet — birds, insects, wind — that's not peaceful. That's low pressure pulling the air up. Something is building.

I wrote a longer piece breaking all of this down. Link is provided if anyone wants the full version.

But honestly, the best thing I can tell you is just start looking up on your next ride and making predictions before checking the app. You'll be surprised how much you already know.