Wisconsin: Northern Lights Tonight, City by City
Aurora season in Wisconsin runs from September to April.
Wisconsin tonight
Low
Aurora chance tonight, Wisconsin overall: Low. Best place: Green Bay, 10:00 PM–12:00 AM. Clouds are the limit there: about 75% cover tonight.
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Track the aurora forecast for Wisconsin with hourly visibility, cloud cover and geomagnetic activity. Save nearby viewing spots, check the best time to look for the Northern Lights, and receive alerts when local conditions improve.
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Wisconsin in numbers
- Cities on this site
- 3
- Latitude
- 43.0°–44.5°
- Geomagnetic latitude
- 52.4°–53.8°
- Min Kp
- 5
- Aurora zone
- Mid-latitude
Best Months to See the Northern Lights in Wisconsin
The aurora season in Wisconsin usually runs from September to April.
Where the odds are best in Wisconsin
| Place | Aurora zone | Min Kp | Geomagnetic latitude | Season |
|---|---|---|---|---|
| 🇺🇸Green BayWisconsin | Mid-latitude | 5 | 53.8° | September to April |
| 🇺🇸MadisonWisconsin | Mid-latitude | 5 | 52.5° | September to April |
| 🇺🇸MilwaukeeWisconsin | Mid-latitude | 5 | 52.4° | September to April |
Other regions in United States
Frequently Asked Questions
Can you see the Northern Lights in Wisconsin tonight?
Wisconsin: it depends on tonight's sky more than on where you are — every place here needs about Kp 5. Beyond that it takes a clear, dark sky: cloud blocks aurora at any Kp. The table at the top of this page has tonight's forecast city by city.
What Kp index is needed to see the Northern Lights in Wisconsin?
Wisconsin: about Kp 5 everywhere. The places on this site sit at similar geomagnetic latitudes, so the threshold is the same. Kp is a probability signal, not a guarantee — it still takes a clear, dark sky.
What are the best months to see the Northern Lights in Wisconsin?
September to April, with December to January the darkest stretch — though at this latitude the season is set by how often a storm reaches you, not by daylight.
Where is the best place to see the Northern Lights in Wisconsin?
Wisconsin: geomagnetically its places are about equal — each needs about Kp 5. What decides the night is cloud and darkness: pick the clearest sky and get away from city lights.