Northern lights forecast app
Northern Lights Forecast and Aurora Alerts for iPhone
Get a northern lights forecast for tonight, tomorrow, and the next 30 nights. Revon combines aurora activity, KP, cloud cover, darkness, and moonlight into a forecast you can actually use.
Northern lights forecast for tonight, tomorrow, and the next night.
30-night aurora outlook for planning a trip around the sky.
Aurora alerts that account for cloud cover and darkness.
Kp, cloud cover, and moonlight explained in plain English.
Tonight
3-night aurora borealis forecast for any location
The app leads with the nights that matter most. Each card combines aurora strength, Kp, darkness, cloud cover, and the constant factors that make a viewing spot good or bad.
- Hourly bars that stay readable at a glance.
- Fast comparison between tonight, tomorrow, and the next night.
- Designed for cold-weather use with strong contrast and large type.
3-night forecast
Any saved location
28
Factors behind the score
Tonight
Mon 16 Mar
Modest aurora strength tonight, but stronger darkness and lower cloud cover keep the best window worth watching.
19
Tomorrow
Tue 17 Mar
Cloud cover builds later, so the better viewing window is shorter.
19
Wednesday
Wed 18 Mar
Steadier but weaker signals keep the next night more tentative.
Outlook
Plan your trip around the aurora with a monthly outlook
Revon keeps the long-range view visual. You can scan an entire month for stronger windows, tap a promising date, and decide whether the trip is worth the effort before you book it.
- Heatmap calendar built for quick scanning.
- Day detail panel with factor breakdown when a date stands out.
- Consistent color system shared with the Tonight view.
March – April 2026
Outlook
Mon
Tue
Wed
Thu
Fri
Sat
Sun
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2
3
4
5
6
7
8
9
10
11
12
57
March 21
Strong geomagnetic activity makes this a promising night. Heavy cloud cover is the main risk.
Alerts
Never miss the northern lights with smart alerts
The app keeps the alert controls simple: enable notifications, choose how much lead time you want, and let the app do the watch work in the background.
- Notification timing is adjustable based on how you travel.
- Settings use the same glass-card layout as the rest of the app.
- Focused interface keeps the decision fast when conditions are changing.
Aurora alerts
Get notified about aurora so you have time to prepare.
Enable alerts
One switch, then the app handles the rest.
Notify me
The closer to the event, the more accurate the prediction.
Learn
Understand the weather factors in your aurora score
Revon does not just show a number. The Learn view explains the factors behind it, so users can see how aurora activity, darkness, cloud cover, moonlight, and light pollution interact.
- Single-screen explanation for each factor.
- Level examples that make the ranges easier to understand.
- Same night-sky artwork and glass language as the forecast views.
Aurora activity
Darkness
Cloud cover
Moonlight
Light pollution
What affects aurora visibility?
Higher Kp pushes the glowing oval farther from the poles. Revon combines that with local darkness, clouds, moonlight, and light pollution so the score means something practical at your location.
Quiet
Kp 0-2 Moderate
Kp 3-4 Strong
Kp 5-6 Intense
Kp 7-9
Kp 0-2 Moderate
Kp 3-4 Strong
Kp 5-6 Intense
Kp 7-9
Built for real aurora watching
Most northern lights forecasts stop at Kp. Revon goes further.
A high KP index does not help if your sky is cloudy or still too bright. Revon weighs aurora activity, cloud cover, darkness, and moonlight together so the score means something at your location.
- Check tonight's northern lights forecast before you drive anywhere.
- Compare the next 3 nights and scan a 30-night aurora outlook.
- Jump into plain-English guides if you want to understand Kp, cloud cover, and location thresholds.
Aurora Science
What Is the KP Index?
Learn what KP means, what levels matter, and why it is only one part of the forecast.
Location Guide
Northern Lights in the UK
See UK-specific KP thresholds, cloud cover advice, and the best regions to watch from.
Location Guide
Northern Lights in Colorado
Understand when Colorado can see aurora and what storm strength you actually need.
Ready for the next clear night?
Download Revon and stop guessing.
Use the live App Store listing for install, reviews, and updates.
Read the blog