Aurora Tonight

Aurora Tonight · iOS and Android

Know when tolook up.

Aurora forecasts, local clouds and a clearer answer for the night ahead.

Space-weather snapshot · KP 2.7 · quiet geomagnetic conditions
. This is not a local viewing forecast.

Coming to iPhone and Android. Store listings are being prepared.

Preview website · Illustrative artwork

Preview the app
iPhone · Example conditions, not a live reading.
Android · Example conditions, not a live reading.

Select a screenshot to enlarge it.

Not tonightWorth watchingAurora’s outStorm’s here

The app sums up tonight with one of these four answers. If data is missing, it says so instead of guessing.

Explore

What’s in the app

Real app screens with example conditions.

01

Understand tonight’s outlook.

Start with the outlook. Space weather, cloud and darkness come together in one headline, with a viewing window in your local time.

Want the detail? Expand KP, Bz and solar-wind trends. Every reading shows how old it is, and missing data is shown as missing.

Enlarge Detail of the Tonight screen: a ‘Next clear window’ card reading 12:51 am to 7:00 am local
time, and a viewing-window strip with hourly blocks from 1 pm to 7 pm. Example conditions.

02

Explore local viewing conditions and places.

See the estimated aurora oval, forecast cloud and nearby dark-sky places on one map. Scrub ahead to see how conditions change through the night.

Compare nearby spots, check a webcam and explore community sightings before you travel.

Enlarge The Map screen: a satellite map of a northern coastline with the estimated aurora oval
drawn as a green band, a conditions card reading ‘Too light outside’ with distance to the oval edge and
cloud cover, and a forecast scrubber at KP 7.5. Example conditions.
Map imagery comes from Apple Maps on iPhone and Google Maps on Android.

03

Learn what the readings mean.

Understand KP, southward Bz and the darkness window in short lessons. The numbers make more sense when you know what changes the outlook.

Ask Aurora explains space weather with available fresh readings. It uses Anthropic’s AI with your permission, and answers can be wrong.

Enlarge The Learn screen: a live context card reading ‘Tonight’s Bz is −18.4 nT southward’, an
Ask Aurora AI entry, and topics including How Auroras Form, The KP Index, The Bz Component, Darkness
Windows, Solar Wind and CMEs, and Solar Storms Explained. Example conditions.

Also in the app

Alerts with your own KP threshold and quiet hours, delivered on iOS; Android remote alerts are not available in the current release. Chase Mode turns the phone into a full-screen compass toward the aurora sector when activity is high. Where it is offered, Aurora Tonight Pro is a subscription for unlimited alert rules.

FAQ

Common questions

How current are the readings?

The app shows each reading’s age. Delayed data is labelled last known; a dash means no reading. Forecasts depend on changing activity, darkness, clouds and your horizon.

Do I have to share my location?

No. Choose a region or search for a place. Automatic location requests use rounded coordinates, roughly a kilometre. Tagging a community sighting is a deliberate public sharing action. See the Privacy Policy for the full details.

What differs between iPhone and Android?

Both have Tonight, Map, Learn and community sightings. Remote alerts are unavailable in the current Android build. iPhone includes alert rules, widgets and Live Activities; delivery still depends on permissions and fresh data.

What does Ask Aurora share?

With your permission, your question and available fresh KP/Bz readings go through our server to Anthropic. Automatic coordinates are excluded. Avoid personal information and check important answers against the original sources.

About

Built by one developer.

Aurora Tonight is an independent app. There are no accounts, no advertising and no third-party trackers in the apps. The forecast decisions are made on our own server from public space-weather data and Open-Meteo weather forecasts, and the apps show what the server knows, including when it doesn’t know.

Aurora Tonight’s support contact is aurora.support@mail.instinct.com. The Support page covers alerts, stale readings, purchases and deletion requests.

  • PlatformsiPhone (iOS) and Android
  • AccountsNone required
  • AdvertisingNone; no ad or tracking SDKs
  • Data sourcesPublic space-weather feeds such as NOAA; Open-Meteo for cloud and weather
  • LegalPrivacy Policy · Terms of Use
  • Revised4 November 2026