Storm Window

When it's safe to be outside

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

Know when it's safe to be outside. See hourly lightning, wind, heat, and air quality risk, plus your next safe window for walks, runs, rides, and rounds of golf. 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. 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, shown as bars or dots • 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 (runner, cyclist, golfer, and more) • Custom activity profiles • Personal heat and AQI sensitivity tuning • Full hourly detail on tap • Driest-stretch highlight within your safe window • Per-location widgets and complications Storm Window Pro+ adds: • Trips: pin an upcoming event and get its own safe-window forecast and alerts • "Should I Go?" activity-aware guidance • Forecast change reviews and 48-hour forecast summaries • Apple Intelligence-powered risk explanations on supported devices — all features work without it Storm Window uses deterministic risk rules for its core safety assessment. Pro+ guidance does not replace the underlying risk rating. Storm Window is forecast guidance, not 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/

  • 5.0
    out of 5
    1 Ratings

Plans can now repeat — daily, weekly, monthly, or yearly — so a recurring activity like a weekly run club or a seasonal boat trip only needs to be set up once. Storm Window tracks the next upcoming occurrence and keeps assessing it automatically. Also in this update: • New: a daylight/darkness note flags when "now" or a recommended Best Time Today window falls before sunrise or after sunset. • Clearer heads-up when a recommended window falls outside your preferred hours, shown consistently in the Home card, widgets, Plans, and Siri/Shortcuts responses. • A one-time confirmation when you turn on overnight recommendations, since Storm Window can only judge weather risk — not personal safety at a given time or place. • The risk chart now defaults to bars (previously dots) on iPhone, widgets, and Apple Watch, with clearer risk-change markers — and the Watch chart now shows those markers too. • Smaller polish throughout, including clearer Maps tab icons and several new in-app tips to help you find existing features.

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 Linked to You

    The following data may be collected but it is not linked to your identity:

    • Purchases
    • Location
    • Identifiers
    • Usage Data

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

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

Seller
Daniel Schumacher
Size
49.6 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.
Location
This app may use your location even when it isn’t open, which can decrease device battery life.
Languages
English
Age Rating
4+
In-App Purchases
Yes
  • Pro+ Monthly $4.99
  • Pro+ Annual $29.99
  • Storm Window Pro Annual $19.99
  • Storm Window Pro Monthly $2.99
Copyright
© 2026 SiPhy LLC