Fairspell: Weather Windows
An iPhone weather app that finds the hours in the forecast that suit an outdoor activity you define, such as mowing, painting or a long run, and scores each window 0 to 100.
What it does
- Scores hourly forecast windows 0 to 100 against rules you set
- Rules for temperature, rain chance, rain amount, wind, gusts, UV, humidity, cloud cover and daylight
- Checks dry hours before and after a window (for mowing, painting, sealing)
- Activity templates: mow the lawn, paint the fence, long run, wash the car, astro night, hang out laundry, family picnic
- Hour-by-hour chart, score breakdown and forecast confidence for each window
- Add a window to the calendar or share it
- Up to ten days ahead with Fairspell Full
- A separate location per activity with Fairspell Full
- Forecasts from Apple Weather
Good for
- Finding when the grass will be dry enough to mow
- Picking dry hours to paint, stain or seal outdoors
- Planning a long run around heat, wind or rain
- Choosing when to hang laundry outside or wash the car
- Finding clear, dark hours for stargazing
- Planning a picnic or other outdoor plans a few days ahead
Not for
- Android users: it is only on iPhone (and Apple-silicon Macs)
- iPhones on iOS 17 or earlier
- Safety-critical decisions or severe-weather alerts: the developer calls its scores guidance, not a guarantee
- Planning more than three days ahead without the $7.99 Fairspell Full purchase
- People who want a general weather app with radar, maps or alerts
- Languages other than English
Price
Free, with in-app purchases
- Free version: free (free). Two activities and a three-day forecast horizon, free with no time limit
- Fairspell Full: 7.99 USD (in-app). One-time purchase, no subscription: unlimited activities, ten-day horizon, a separate place per activity. Shareable with Family Sharing. Priced in USD; the App Store converts to local currency in each country