Cities Covered
3
Monitoring locations across Wisconsin
Magnetic Latitude Range
45.8°–53.5° MLAT
Prime aurora viewing latitudes
Required Kp Index
Kp 7.0–9.0
Minimum activity for visibility
Kp Requirements by Location
Green Bay
53.5° MLAT
Required Kp Levels
Kp 7.0+ Horizon
Kp 8.0+ Optimal
Kp 9.0+ Bright
Kp0Kp1Kp2Kp3Kp4Kp5Kp6Kp7Kp8Kp9
Visible on horizon
Clearly visible
Bright overhead
Madison
52.0° MLAT
Required Kp Levels
Kp 7.0+ Horizon
Kp 8.0+ Optimal
Kp 9.0+ Bright
Kp0Kp1Kp2Kp3Kp4Kp5Kp6Kp7Kp8Kp9
Visible on horizon
Clearly visible
Bright overhead
Milwaukee
45.8° MLAT
Required Kp Levels
Kp 9.0+ Horizon
Kp 10.0+ Optimal
Kp 11.0+ Bright
Kp0Kp1Kp2Kp3Kp4Kp5Kp6Kp7Kp8Kp9
Visible on horizon
Clearly visible
Bright overhead
Visible on horizon
Clearly visible
Bright overhead
Aurora Status by City
Free alerts for local visibility changes, tonight and through the next 72 hours.
Get alerts for Green Bay and 3 locations in Wisconsin
AuroraMe watches Kp, clouds and darkness windows so you know when to go outside.
Best Viewing Season in Wisconsin
Geographic Advantages
Magnetic Latitude 45.8°–53.5° MLAT
Cities Covered 3 locations
Winter Darkness 16-18 hours
Dark Sky Sites 0 Bortle 1-3
Peak Aurora Months
Primary Peak September–October
Secondary Peak March–April
Equinox Boost +35% activity
Photography Winter darkness
Track with AuroraMe
Coverage All 3 cities
Advance Notice 30 minutes
Weather Integration Cloud cover
Predictions Best viewing times
Frequently Asked Questions
Can you see the northern lights in Wisconsin?
Yes, Wisconsin offers aurora viewing opportunities. Cities like Green Bay (MLAT 53.5°) can see aurora at Kp 7.0+, while southern locations need Kp 9.0+. Best viewing is September–April during dark, clear nights.
Where are the darkest skies in Wisconsin?
Check our city pages for specific dark sky recommendations near each location.
