Just what I was looking for!

Very nice! I have a small idea that I think would be pretty simple to implement; for the graphs you could make a vertical line wherever your finger is similar to other weather apps, that way you can precisely view the number at a specific point.

Great, but you know what would make it even more great?

For this review, I will be comparing it to the Apple Weather app. You could at some point make 10-mars-day forecasts that have future highs and lows, and future conditions. You could also make it so that you can choose a location on Mars. And, you can probably already add the current temperature on Mars. And, you could at some point make 24-mars-hour forecasts that show the future temperatures and conditions. You could also add Carbon Dioxide quality. You could also add precipitation maps. You could also add wind direction along with wind speed. You could also add precipitation in the last 24-mars-hours. You could also add the temperature it would feel like on Mars. You could add visibility. Please consider making weather apps for each planet! (except Earth because… you know)