WeatherBolt
(formerly HarborCast)
See rain and storms coming. Radar, lightning and forecasts in one app.
🌧️ Radar and clouds
Play back the last 2 hours of rain radar, with a clouds layer. Free.
⚡ Lightning
See strikes with distance and age colours. Pro, with a short free preview.
🌀 Storm alerts and tracking
Follow a hurricane's path, cone and past track, and get alerts. Pro.
🎚️ Your own limits
Each hour is rated Good, Caution or Danger by the numbers you set.
🕐 Forecast hour by hour
Hourly forecast, plus today and the next 3 days. Pro shows all 7 days.
⌚ Apple Watch and widgets
Watch app, complications and Home Screen widgets.
Free and Pro
Free: rain radar with 2 hours of playback, the clouds layer, the hourly forecast, today plus the next 3 days, and 1 saved place. Pro: live lightning strikes, lightning alerts that work when the app is closed, the storm tracker and storm alerts, all 7 days, saving your own limits, and up to 10 saved places. There are no ads and you do not need an account.
Lightning and storms
Strikes show their distance and age by colour. Lightning alerts let you pick a distance from 1 to 30 miles. The storm tracker shows a hurricane or tropical storm's path, cone, past track and forecast points. Storm alerts tell you when a tropical storm's forecast path comes within a distance you pick, from 100 to 1000 miles. Lightning location is approximate. What to do if a storm catches you out →
Tides and marine (optional)
Turn on Tides & marine in Settings to add a tide chart, high and low tide times, the marine forecast and small craft advisories. It stays off unless you turn it on. A guide to reading marine forecast numbers →
Where the data comes from
Forecasts, tides and marine information come from NOAA and the National Weather Service. Satellite imagery is from NASA. Lightning comes from a NOAA satellite lightning detector. WeatherBolt is not endorsed by NOAA.
On your wrist
The Apple Watch app has complications for wind, tide and a day rating clock. Widgets are also available for the Home Screen.