Northern lights Indiana tonight
Indiana sits at ~49°N magnetic latitude and needs Kp 4 from dark sky sites. Indiana Dunes National Park on the Lake Michigan shore faces north with an open water horizon. The southern Indiana hills give darker sky, though the lake positions give better latitude. Best season: September to April.
Aurora visibility - Indiana
Unlikely tonight
Kp 1 is well below the Kp 4–5 threshold needed for aurora to be visible from Indiana.
Current Kp
1
of 9
7-day outlook for Indiana
Today
3 Jun
Tomorrow
4 Jun
Fri
5 Jun
Sat
6 Jun
Sun
7 Jun
Mon
8 Jun
Tue
9 Jun
Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.
auroratonight.space
What Kp is needed here?
Indiana sits at a magnetic latitude of approximately 49°N. The Kp index - a global measure of geomagnetic activity on a scale from 0 (quiet) to 9 (extreme storm), updated every 3 hours - needs to reach Kp 4–5 before the auroral oval expands far enough south to be visible from here.
At Kp 4–5, visibility is possible from Indiana but skies need to be clear and dark. Cloud cover and light pollution remain the main obstacles even when Kp is high enough.
Best dark sky sites near Indiana
Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark northern horizon within reach.
Indiana Dunes National Park
Get directions ↗The Lake Michigan shoreline at 41.6°N faces north across open water. Moving east along the park from Portage puts Chicago's light dome to the west rather than north. West Beach and Dunbar Beach face north with the lake horizon clear. The dunes give marginally higher latitude than Indianapolis and are accessible year-round. About 45 miles from Chicago and 140 miles from Indianapolis.
Hoosier National Forest - Brown County area
Get directions ↗The Brown County State Park and Hoosier National Forest ridge country south of Indianapolis give Bortle 3 conditions in the hill country. North-facing ridge positions above the valleys give open sky. The area around Yellowwood State Forest is particularly dark. Not the highest latitude in Indiana but genuinely dark - useful for Kp 5-6 events when the aurora extends south.
Potato Creek State Park area / Kankakee
Get directions ↗The northern Indiana flatlands near South Bend give open flat sky with reasonable darkness in the rural areas north of US-6. Potato Creek State Park faces north across flat prairies. The Kankakee Fish and Wildlife Area gives dark open-sky positions at similar latitude to Indiana Dunes but farther east, away from Chicago's light dome. About 60 miles east of Chicago and 100 miles from Indianapolis.
Best time to see the northern lights in Indiana
Indiana's aurora season runs from late September through to March, when nights are long enough for truly dark skies. The equinox months, September and March, bring a natural boost in geomagnetic activity, making them statistically the best of the season. Summer months bring too much twilight for aurora to be visible at this latitude.
Activity peaks around the September and March equinoxes, when Earth's magnetic field geometry is most favourable for coupling with the solar wind. Events during these two windows tend to produce the strongest displays of the year for observers at Indiana's latitude.
April through August brings persistent astronomical twilight that washes out aurora completely. Even strong events (Kp 6+) remain invisible during this period because the sky never gets dark enough.
Related pages
Northern Lights USA
USA-wide aurora forecast hub.
Northern Lights Ohio Tonight
Ohio - similar latitude, Hocking Hills and Lake Erie shore.
Northern Lights Illinois Tonight
Illinois - Starved Rock and Shawnee NF, Kp 4.
Northern Lights Michigan Tonight
Michigan - Upper Peninsula gives higher latitude and darker sky.
What Is the Kp Index?
What Kp 4-5 means for viewing at 49°N magnetic latitude.
Aurora photographs from Indiana
Aurora borealis over Indiana
Aurora borealis over Indiana
ISS Expedition 29 crew · Public domain · Source
Aurora borealis over Indiana
ISS Expedition 29 crew · Public domain · Source
Aurora borealis over Indiana
ISS Expedition 29 crew · Public domain · Source
Aurora borealis over Indiana
The original uploader was 14jbella at English Wikipedia. · CC BY-SA 1.0 · Source
Common questions
Aurora in Indiana - Indiana Dunes vs Brown County, Indianapolis visibility, and Kp thresholds.
