Storm Window

When it's safe to be outside

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Find safer outdoor windows with hourly risk guidance, activity profiles, saved places, widgets, and Pro+ forecast explanations. Storm Window helps you find safer outdoor windows when weather risk is changing. Instead of giving you another raw forecast, Storm Window turns hourly weather data into a clear outdoor risk timeline, highlighting when conditions look clear, marginal, stormy, or severe. It is built for runners, cyclists, walkers, golfers, beach days, trail time, work crews, and anyone who plans around lightning, heat, wind, air quality, and rain. Core features: • Clear "go / wait" style outdoor risk guidance • 48-hour hourly risk strip • Lightning-aware storm risk • Heat, air quality, wind, UV, rain, and snow context • National Weather Service alert awareness • Current-location planning, plus one saved place • Home Screen widgets and Apple Watch support • Built-in explanations of what's driving each hour's risk Storm Window Pro adds: • Multiple saved locations • Activity-specific risk profiles • Custom activity profiles • Personal heat and AQI sensitivity tuning • Full hourly detail on tap • Per-location widgets and complications Storm Window Pro+ adds: • "Should I Go?" activity-aware guidance • Apple Intelligence-personalized explanations for hourly risk • Forecast change reviews • 48-hour forecast summaries • Apple Intelligence-powered guidance on supported devices — every Pro+ feature still works without it, using Storm Window's own built-in explanations Storm Window uses deterministic risk rules for its core safety assessment. Pro+ explanations help you understand the forecast, but they do not replace the underlying risk rating. Storm Window is forecast guidance, not a lightning detection system or a guarantee of safe conditions. Weather can change quickly. When thunder roars, go indoors. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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The developer, Daniel Schumacher, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Daniel Schumacher
    Size
    • 25.6 MB
    Category
    • Weather
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • iPad
      Requires iPadOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    • Apple Watch
      Requires watchOS 26.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    • Pro+ Monthly $3.99
    • Pro+ Annual $29.99
    • Storm Window Pro Annual $19.99
    • Storm Window Pro Monthly $2.99
    • Learn More
    Copyright
    • © 2026 SiPhy LLC
  • Developer Website
  • Privacy Policy

    • More by Daniel Schumacher