Per-cairn weather

Every located cairn pulls its own forecast, for its own coordinates, on its own date. Not the nearest town — the town is 4,000 ft below your camp and having different weather.

What you get

High, low, precipitation chance, and wind — per cairn, per date. Days with real storm risk get flagged on the itinerary itself, so the warning sits next to the plan it threatens, not in a separate app.

When it refreshes

Forecasts refresh automatically whenever you open the trip, for every located cairn whose date is inside the forecast horizon. Cairns further out simply wait — a 14-day-out “forecast” is fiction, and Divide won't print fiction next to your plan. Move a cairn and its weather refetches for the new spot.

Using it well

The forecast is an input to divisions, not a verdict. “Under 30% t-storms by 8am” is a condition a forecast can answer; “looks fine” is not. Weather data comes from Open-Meteo; coordinates and dates are sent without your identity.