Northern lights in Illinois are rare: this far south they need a strong geomagnetic storm of Kp 7 or more. AuroraMe tracks one location in Illinois: Chicago.
Cities Covered
1
Magnetic Latitude Range
51.3°–51.3° MLAT
Required Kp Index
Kp 7.0–7.0
Unlikely
Best chance in Illinois tonight: Chicago
AuroraMe watches Kp, clouds and darkness windows so you know when to go outside.
Kp Requirements by Location
Chicago
51.3° MLAT
Kp 7.0+ Horizon
Kp 8.0+ Optimal
Kp 9.0+ Bright
Visible on horizon
Clearly visible
Bright overhead
Aurora Status by City
Best Viewing Season in Illinois
Geographic Advantages
Mean astronomical darkness at Chicago, Dec–Feb 10.2–11.5 hours
Peak Aurora Months
Estimates for Chicago
October 0.07 clear nights, 58.3% cloud
November 0.06 clear nights, 63.3% cloud
May 0.04 clear nights, 64.3% cloud
Frequently Asked Questions
Can you see the northern lights in Illinois?
Yes, Illinois offers aurora viewing opportunities. Cities like Chicago (MLAT 51.3°) can see aurora at Kp 7.0+, while southern locations need Kp 7.0+. Best viewing is September–April during dark, clear nights.
Learn More About the Northern Lights
Use the aurora borealis forecast, check northern lights tonight, or open the live aurora map and Kp tracker.
