Northern Lights Tonight in Michigan
Michigan sits on the northern edge of the lower 48, so the Upper Peninsula and the Straits catch aurora at Kp 4.1 while Detroit needs a stronger storm, up to Kp 5.3. Tonight's peak Kp is 3.7 (active): best chance at Copper Harbor, low.
Best chance in Michigan tonight
LowCopper Harbor: low, peak Kp 3.7 against Kp 4.1 needed, clouds 19%.
Kp requirements by location
1Copper Harbor
| On the horizon | Kp 4.1 |
| Clearly visible | Kp 5.1 |
| Bright, overhead | Kp 6.1 |
Kp now 2.0: 2.1 short of the horizon
2Marquette
| On the horizon | Kp 4.3 |
| Clearly visible | Kp 5.3 |
| Bright, overhead | Kp 6.3 |
Kp now 2.0: 2.3 short of the horizon
3Mackinaw City
| On the horizon | Kp 4.5 |
| Clearly visible | Kp 5.5 |
| Bright, overhead | Kp 6.5 |
Kp now 2.0: 2.5 short of the horizon
4Grand Rapids
| On the horizon | Kp 5.2 |
| Clearly visible | Kp 6.2 |
| Bright, overhead | Kp 7.2 |
Kp now 2.0: 3.2 short of the horizon
| On the horizon | Kp 5.3 |
| Clearly visible | Kp 6.3 |
| Bright, overhead | Kp 7.3 |
Kp now 2.0: 3.3 short of the horizon
Best dark sky viewing locations
Headlands International Dark Sky Park
International Dark Sky Park (DarkSky International)
Two miles of undeveloped Lake Michigan shoreline west of Mackinaw City, with an open view across the Straits toward the north.
Paved road from Mackinaw City; the park is open around the clock.
Isle Royale National Park (Rock Harbor)
A wilderness island in Lake Superior with no road lighting and open water to the north. Among the darkest places you can reach in Michigan.
Ferry or seaplane only, from Copper Harbor, Houghton or Grand Portage, in season.
Port Crescent State Park
Lake Huron shoreline at the tip of the Thumb, a state-managed dark-sky area with a wide, low horizon over Saginaw Bay and the nearest dark sky for southeast Michigan.
Paved park road off M-25; state park vehicle pass needed.
Aurora status by city
Copper Harbor
Marquette
Mackinaw City
Grand Rapids
Detroit
What time to look tonight in Michigan
Best window tonight: 10 PM – 12 AM EST at Copper Harbor. Look north, low on the horizon; the hours around local midnight are usually the most active.
Best viewing season in Michigan
Michigan's dark season runs from autumn through early spring, and the best nights come in the cold months when the nights are longest. The Upper Peninsula and the tip of the Lower Peninsula offer the darkest horizons. Lake Superior and the Straits of Mackinac give you open water to the north, which is exactly the direction you need.
Clouds are the main obstacle. Lake-effect cloud and snow bands follow cold northwest winds off the lakes, and winter overcast can last days, especially downwind of Lake Superior and Lake Michigan. Clear nights often arrive behind a cold front. In the south, Detroit's light dome swallows the horizon, so drive north or to the Lake Huron shore.
Peak aurora months
At Copper Harbor, Kp most often reaches the threshold on dark nights in March, April, September and October.
GFZ Potsdam Kp since 2015; clouds not counted.
Michigan northern lights FAQ
Can you see the northern lights in Michigan?
Can I see the northern lights in Michigan tonight?
Where are the darkest skies in Michigan?
What Kp do I need to see the northern lights in Michigan?
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Track aurora across Michigan
The forecast on this page, watching your location all night and telling you when to step outside.
The hour tonight when Kp, clouds and darkness line up for your spot.
A push alert 30–90 minutes before the aurora reaches your sky, even at 2 AM.
Where the clouds open nearby, so you know which way to drive.
Explore more
Learn more about the northern lights
How to See the Northern Lights: A Beginner's Guide
Three conditions decide whether you see the northern lights: activity at your latitude, a clear sky and darkness. Here is how to check each one.
Aurora Colors and What They Mean
Green, red, blue, purple and pink aurora explained: which gas makes each color, how high it glows, and why your camera shows more than your eyes.
Northern Lights in Canada: Best Places
The best places to see the northern lights in Canada: Yellowknife, Whitehorse, Churchill, Jasper and the prairies, plus what Ontario and Quebec get.
Northern Lights in Scotland
Where to see the northern lights in Scotland: north coast, islands, Cairngorms and dark sky parks, when the sky is dark enough, and how to beat cloud.
Northern Lights in Norway
Where to see the northern lights in Norway, which months work, why the coast and inland need different plans, and what Oslo gets in a storm.
Aurora Australis Forecast Guide
How to read a forecast for the southern lights: Kp, Bz, the southern oval, darkness, moon and cloud, plus where to look in Tasmania and southern Australia.
Kp index today
Live Kp, the 3-day and 27-day forecast, and what Kp each city needs.
Geomagnetic storm today
G-scale now, the storm outlook and how far south the aurora reaches.