Support

• How accurate is the crossing time?

  The forecast is usually within ±1–2 hours. Your altitude correction adds a few degrees of precision at the boundary where condensation happens, but the forecast itself is the limiting factor. The app's estimate is a guide, not a guarantee. Real dew point depends on the actual temperature, humidity, and surface properties at that moment — factors forecasts can't perfectly predict. Always verify with your own observations.

• Why does my barometer reading jump around?

  Weather changes pressure. A low-pressure system moving in will raise or lower the reading by several hPa within hours. Calibrate the barometer against a known altitude (from a map or airport) periodically. If you're climbing a mountain, the reading will drop naturally. If you're watching from a fixed spot and the pressure drifts significantly in hours, weather is changing.

• Can I use this indoors?

  Yes, but the forecast applies to outdoors at your location. If you're checking whether condensation will form inside a building, the surface temperature may be different from what the app estimates. The app's prediction is for outdoor conditions at the coordinates it uses. Test it against real observations and adjust your expectations accordingly.

• What if the forecast is unavailable?

  The app will say so and show the last known forecast (with a timestamp). DewCast doesn't guess or fall back to old data without telling you. To use the app fully, you need internet access when you pull the forecast. After that, the app works offline for checking and logging.