Northern lights in Wyoming are rare: they need a geomagnetic storm of Kp 7 or more to reach this far south. AuroraMe tracks 5 locations across Wyoming; 2 of them need only Kp 7, led by Sheridan.
Cities Covered
Monitoring locations across Wyoming
Magnetic Latitude Range
Prime aurora viewing latitudes
Required Kp Index
Minimum activity for visibility
Kp Requirements by Location
Aurora Status by City
Jackson
Aurora reaches Jackson during strong geomagnetic storms at 50.5° magnetic latitude. Watch the northern horizon from a dark spot away from city lights.
Casper
Aurora possible at 50.4° magnetic latitude during active periods. KP 6+ required for visibility. Strong storms can bring impressive displays.
Cheyenne
Located at 48.8° MLAT, aurora requires significant storm activity. KP 7+ events several times per year bring northern lights within view.
Sheridan
Moderate position at 52.2° magnetic latitude. Geomagnetic storms can push the auroral oval far enough south to show aurora low on the northern horizon here.
Cody
Moderate position at 51.7° magnetic latitude. Geomagnetic storms can push the auroral oval far enough south to show aurora low on the northern horizon here.
Best Viewing Season in Wyoming
In a typical year no location we track in Wyoming records a single clear night with Kp at its threshold. Only an extreme geomagnetic storm brings aurora this far south. Kp last reached the local threshold on 2026-01-21. Figures below are for Sheridan, the best-placed of the 5 locations we track in Wyoming. They describe a typical year built from the 1996-2026 planetary Kp record and the 2001-2020 cloud normal — not a forecast. Each city page shows tonight's live cloud, moon and darkness instead.
Geographic Advantages
What It Would Take
Track with AuroraMe
That oval line is a model estimate of where the aurora sits at extreme Kp, not a measurement — the threshold date above comes from the Kp record itself.
Frequently Asked Questions
Can you see the northern lights in Wyoming?
No — not in a typical year. Wyoming averages under one clear night with the aurora in reach, and the planetary index has to reach Kp 7+ for it to be visible at all, which last happened on 2026-01-21. Only an extreme geomagnetic storm brings the aurora this far south, so this is a watch-the-alerts situation rather than a month to plan around.
Where are the darkest skies in Wyoming?
Check our city pages for specific dark sky recommendations near each location.