Michigan, United StatesMagnetic latitude 56.1°Population 1,324188 m above sea level
Northern lights in Ontonagon
From Ontonagon the aurora is visible on most active nights — first low to the north, from about Kp 3.
Right now
It is still light here. Darkness starts at 20:13.
Updates every minute while this page is open.
Tonight in one minute
Only in photos, if at all
- Solar activity Enough for a camera: Kp 1.7 expected, 1.3 needed for photos, 3 for the eye.
- Sky Mostly clear (23% cloud).
- Darkness Dark from 20:13 to 07:12.
What to do: Point a phone in night mode north (3–10 s exposure). A red or green glow often shows on the screen before you can see it.
- Detailed forecast Fri 16 1.7 Photos only · Kp 1.7
- Sat 17 1.7 Photos only · Kp 1.7
- 27-day trend Sun 18 2 Photos only · Kp 2
- Mon 19 2 Photos only · Kp 2
- Tue 20 3 Good chance · Kp 3
- Wed 21 4 Possible · Kp 4
- Thu 22 4 Possible · Kp 4
- Fri 23 3 Possible · Kp 3
- Sat 24 2 Unlikely · Kp 2
- Sun 25 2 Photos only · Kp 2
- Mon 26 2 Photos only · Kp 2
- Tue 27 2 Photos only · Kp 2
- Wed 28 2 Photos only · Kp 2
- Thu 29 2 Photos only · Kp 2
- Fri 30 5 Good chance · Kp 5
- Sat 31 5 Good chance · Kp 5
- Sun 1 5 Possible · Kp 5
- Mon 2 3 Possible · Kp 3
- Tue 3 2 Unlikely · Kp 2
- Wed 4 2 Unlikely · Kp 2
- Thu 5 3 Possible · Kp 3
- Fri 6 3 Possible · Kp 3
- Sat 7 3 Possible · Kp 3
Wednesday 21 October — Good chance · Kp 3 · best around 01:00 · Forecast cloud: 17%. · Reliability: low (rough trend)
Each box is one night: the colour shows the chance, the number the expected Kp. Tap a night for details.
📅 Add these nights to your calendar — it updates itself (.ics)
How far ahead can the northern lights be forecast?
- Minutes to an hour: satellites 1.5 million km away measure the solar wind before it reaches Earth. This is the surest warning — the “Right now” box uses it.
- 1–3 days: when the Sun throws out a cloud of particles, it takes one to three days to arrive. NOAA's 3-hourly forecast covers these nights; the timing can still be off by a few hours.
- 4–27 days: the Sun turns once every 27 days, and regions that disturbed Earth's field last time often do it again. NOAA's 27-day outlook gives this rough trend — new eruptions are not in it yet.
Tonight
Updated 10:44 local time
Unlikely
Best around 22:00. Forecast max Kp 1.7 (this place needs 3), average cloud 23%.
- Dark enough
- 20:13 – 07:12
- Sunset
- 19:08 · sunrise 08:18
- Moon
- 31% · ↑ 14:45 · ↓ 22:30
- Kp neededKp index: a 0–9 measure of geomagnetic activity. The higher it is, the further from the poles the aurora reaches.
- Kp 3
- Kp for photos
- In photos: from Kp 1.3 (a red glow low in the north).
- Look towards
- north (0°)
Score = activity (NOAA Kp and OVATION) × clear sky (MET Norway) × darkness × moonlight. Methodology
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What you would see from Ontonagon
Facing north. Bands show where the aurora sits at two activity levels.
| Kp | What you see | Lower edge | Ray tops | Distance to the aurora |
|---|---|---|---|---|
| 2 | Faint glow, mostly on camera | 5° | 12° | 712 km |
| 3 | Visible to the north | 10° | 20° | 489 km |
| 4 | Visible to the north | 20° | 35° | 267 km |
| 5 | Visible to the north | 67° | 77° | 44 km |
| 6 | Overhead and all around | – | – | – |
| 7 | Overhead, and also to the south | – | – | – |
| 8 | Overhead, and also to the south | – | – | – |
| 9 | Overhead, and also to the south | – | – | – |
The Kp scale in plain words
Kp is a 0–9 score for how strongly the Earth's magnetic field is being shaken by the solar wind. The higher it goes, the further from the poles the northern lights reach. Kp 0–2 is a quiet night; Kp 5 and above is a geomagnetic storm.
- Kp 0–2 Quiet next 24 h camera in Ontonagon Only under the auroral oval: northern Norway, Swedish and Finnish Lapland, Iceland, Alaska, northern Canada.
- Kp 3 Unsettled eye in Ontonagon Bright in the Arctic; low on the horizon in central Scandinavia and southern Iceland.
- Kp 4 Active Overhead in the Arctic; low in the north from southern Norway, Sweden, Finland and northern Scotland.
- Kp 5 Minor storm (G1) Scotland, southern Scandinavia, the Baltic states, the northern US states and southern Canada.
- Kp 6 Moderate storm (G2) Northern England, Denmark, northern Germany and Poland, the US Midwest — often clearer in photos than to the eye.
- Kp 7 Strong storm (G3) Most of the UK, the Netherlands, Germany, Poland, Czechia; red glow in photos from France and the northern Alps.
- Kp 8 Severe storm (G4) Central Europe to the eye; red sky in photos from northern Italy, Spain, the Balkans and Turkey's Black Sea coast.
- Kp 9 Extreme storm (G5) Seen across Europe and the US; in photos as far south as the Mediterranean, Turkey and North Africa (May 2024).
Light pollution
Dark rural sky. Little artificial light. Faint displays are visible once your eyes have adapted.
A noticeably darker area starts about 5 km to the east-south-east. Open in OpenStreetMap
Estimate from NASA VIIRS night-light data (sky-glow model within 50 km). Check access and private land before you go.
Hills and mountains
Terrain is not modelled for this place.
From elevation data (AWS Terrain Tiles) along seven lines of sight up to 30 km.
Best months to see the aurora in Ontonagon
Share of nights 2005–2025 that were dark, active enough here and mostly clear.
March has been the best month (14% of nights), followed by October (13%).
| Month | Good nights | Clear nights | Darkness | Low / high |
|---|---|---|---|---|
| September | 11% | 29% | 9.1 h | 12° / 19°C |
| October | 13% | 36% | 10.9 h | 6° / 12°C |
| November | 8% | 21% | 12.0 h | -1° / 4°C |
| December | 4% | 18% | 12.9 h | -6° / -2°C |
| January | 7% | 23% | 12.4 h | -10° / -5°C |
| February | 12% | 33% | 11.4 h | -10° / -5°C |
| March | 14% | 33% | 9.9 h | -6° / 1°C |
| April | 2% | 9% | 7.8 h | 0° / 7°C |
Aurora nights in Ontonagon since 1995
Nights when Kp reached 4.7 or more while it was dark here.
Most recent strong nights
- 4 October 2026 · Kp 5.0
- 3 October 2026 · Kp 5.0
- 7 September 2026 · Kp 5.0
- 3 July 2026 · Kp 7.0
- 24 June 2026 · Kp 5.0
- 18 April 2026 · Kp 5.3
- 17 April 2026 · Kp 5.3
- 2 April 2026 · Kp 5.3
Practical information
- Nearest airport
- Houghton County Memorial Airport (CMX) · 71 km
- Typical low / high in March
- -6° / 1°C
- What to wear
- Below freezing at night: thermal layers, a warm jacket, hat, gloves and winter boots. Full clothing guide
- Emergency number
- 911
- Winter driving
- Tyre and chain rules are set at state level; check Alaska 511 (511.alaska.gov, Alaska DOT&PF) for Alaska roads, or the relevant state's 511 service elsewhere. Road conditions
- Access to land
- There is no general right to roam; trespass law is set by each state, so stay on public land (national parks, national forests, BLM land) or get the landowner's permission, and follow each park's night-time and parking rules.
- Official space-weather service
- NOAA Space Weather Prediction Center (aurora dashboard)
- Weather service
- National Weather Service (NOAA)
Questions and answers
What Kp do you need to see the aurora in Ontonagon?
From Ontonagon the aurora is visible on most active nights — first low to the north, from about Kp 3.
Which way should I look for the aurora in Ontonagon?
Face north (about 0° from true north). At Kp 3 the lower edge of the aurora sits roughly 10° above the horizon; stronger activity lifts it higher and further across the sky.
What is the best month to see the aurora in Ontonagon?
Over 2005–2025, March gave the best odds in Ontonagon (14% of nights dark, active enough and mostly clear), followed by October (13%).
When is the aurora season in Ontonagon?
Ontonagon gets dark enough for the aurora all year round, though the long winter nights give the most hours to watch.
Is there much light pollution in Ontonagon?
Little artificial light. Faint displays are visible once your eyes have adapted. A noticeably darker area starts about 5 km to the east-south-east.
When was the aurora last possible in Ontonagon?
Activity last reached storm level (Kp 5 or more) during darkness in Ontonagon on 4 October 2026 (Kp 5.0) — 937 such nights since 1995. Here the aurora also appears on many quieter nights.
Also covered by this forecast
Villages and districts around Ontonagon share its forecast: within a few kilometres the sky, the Kp needed and the best direction are the same.
- Township of Ontonagon 6 km
- Firesteel 7 km
- Green 10 km
- Ontonagon County 10 km
- Grand Rapids 12 km
- Rockland 18 km
- Greenland 19 km
- Old Victoria Historic Townsite 19 km
- Township of Rockland 20 km
- Silver City 20 km
- Victoria 20 km
- Township of Greenland 21 km
- Mass City 21 km
- Lake Mine 23 km
- McKeever 24 km
- White Pine 24 km
- Township of Bohemia 27 km
- Nonesuch 27 km
- Wainola 27 km
- Wasas 28 km
- Carp Lake Landing 31 km
- Winona 31 km
- Township of Carp Lake 32 km
- Rousseau 32 km
- Township of Matchwood 33 km
- Township of Stannard 33 km
- Wyandotte 33 km
- Lake Roland 34 km
- Pori 34 km
- Topaz 35 km
- Matchwood 36 km
- Bergland 37 km
- Buckshot Landing 37 km
- Ewen 37 km
- North Paynesville 37 km
- Balitmore 38 km
- Bruce Crossing 39 km
- Gem 40 km