HeatWindow Denver
A hyperlocal weekend planner that re-times your outdoor activities (hikes, kids' soccer, dog walks, patio brunches) around Denver's hourly heat index and pushes alerts when a heat advisory is issued.
Denver-area parents and outdoor enthusiasts planning weekend activities during summer heat
- Hour-by-hour heat-index timeline for your zip code with 'safe windows' highlighted
- Activity-specific recommendations (e.g., 5K run vs. playground vs. gardening) with suggested time swaps
- Indoor-and-AC venue suggestions (libraries, malls, splash pads) auto-sorted by distance
- Push alerts when NWS issues a heat advisory for your county
Denver is under a weekend heat dome and residents are actively searching how hot it will get; people need a tool that goes beyond a temperature number and tells them what to actually do with their weekend.
Google Trends shows strong interest in 'denver weather' (200+ searches) and Denver actively issues heat advisories with cooling centers, but no direct evidence of consumers searching specifically for 'heat-aware weekend activity planning' — this is a niche slice of a broader weather demand.Weekend Weather Forecast for Denver, Colorado 80235 - The Weather Channel ↗Daytime Cooling Centers - City and County of Denver ↗
The closest existing tool (OSHA-NIOSH Heat Safety Tool) is designed for outdoor workers, not weekend family recreation; weather.com and Visit Denver cover weekends but do not re-time activities around the hourly heat index — clear product gap.OSHA-NIOSH Heat Safety Tool App | CDC ↗Best Heat Index Apps For Accurate Real-Time Data ↗
Weather app subscriptions typically run $3-5/mo (Carrot, Weather Underground premium), but Denver-only seasonality caps annual utility to ~5 months and the TAM is a single metro area — limited willingness-to-pay evidence for a hyperlocal recreational planner.Best Heat Index Apps For Accurate Real-Time Data ↗
Climate change is increasing extreme-heat frequency in Denver which strengthens the long-term thesis, but the product is intrinsically seasonal (roughly May-September) and tied to weekends, restricting year-round engagement and limiting defensibility.
MVP is straightforward: NWS public API provides hourly forecasts and heat advisories free of charge, heat index math is well-documented, push notifications are standard, and a rules engine to map heat index → activity recommendations is small in scope.