Analytics and monitoring decision
Willitraintomorrow
A small, static forecast site is realistic for one technical user to build and maintain using public weather APIs and static hosting; there are no evident durable moats on the product pages that block a DIY replacement.
Visit website↗Built by Yuyu, who ships 11 products in this index
Not priced
No pricing page we fetched carried a figure, so there is nothing to compare against. The build side is still real.
$50one-off25 h to build
$5/mo3 h/mo upkeep
No published price to break even against.
Open-source builds that already do this
Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need - the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship. All Willitraintomorrow alternatives, with the arithmetic →
What a replacement has to do
- Query a weather API for a location, parse hourly/daily forecast, render a lightweight responsive page and hourly timeline, cache responses and handle geolocation input, deploy as a static site
What it still won’t have
- Brand, domain reputation and existing user base
- Designer polish, copy and curated destination pages
- Any proprietary data, custom forecasting models, or licensed content
What remains hard
- Product polish and ongoing maintenance
First-year cost
No published price
Willitraintomorrow does not publish a price we could read, so there is nothing to compare against. What building costs is below.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a privacy-focused static weather site using Next.js (React) and Vercel (or static hosting). Stack: Next.js + TypeScript, Tailwind CSS, Node serverless edge functions for caching, and Open-Meteo (or other) API for forecasts. Core features in scope: location input (text + browser geolocation), geocoding to lat/long, hourly and daily forecast pages, units toggle (C/F), icons and human-readable summaries, server-side/edge caching (TTL 10–30 min), CI deployment, and privacy-friendly analytics. Out of scope: training forecasting models and multi-user accounts. Include error handling for API failures, retries/backoff, accessibility basics, and automated tests for API integration and UI rendering.
How we checked
How the score was reached
- Build verdict base78
- An open-source build was found+5
- 3 cited sources+3
- 3/3 assessment runs agreed+4
- Evidence score90
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 3
Every page the run actually retrieved.
- official productWill It Rain Tomorrow? — homepage
- open sourceopen-meteo/open-meteo
- open sourceschachmat/wego
Integrity checks
What held up, and what did not.
