Wisconsin, United StatesMagnetic latitude 54.7°Population 3,188349 m above sea level
Northern lights in Ladysmith
Ladysmith needs an active night: from about Kp 4 the aurora appears low over the north horizon, and it rises higher as activity grows. Since 1995 storms of Kp 4.7 or more reached this place during darkness on 940 nights.
Right now
It is still light here. Darkness starts at 19:13.
Updates every minute while this page is open.
Tonight in one minute
Yes — good chance tonight
- Solar activity Strong enough: Kp 4 expected, 4 needed here.
- Sky Mostly clear (0% cloud).
- Darkness Dark from 19:13 to 06:25. A bright moon (78%) washes out faint displays.
What to do: Go somewhere dark around 19:00, give your eyes 15 minutes to adjust and look north, low over the horizon.
Wednesday 21 October — Good chance · Kp 4 · best around 20:30 · Forecast cloud: 0%. · Reliability: medium
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 11:50 local time
Good chance
Best around 19:00. Forecast max Kp 4.0 (this place needs 4), average cloud 0%.
- Dark enough
- 19:13 – 06:25
- Sunset
- 18:08 · sunrise 07:30
- Moon
- 78% · ↑ 16:06 · ↓ 03:19
- Kp neededKp index: a 0–9 measure of geomagnetic activity. The higher it is, the further from the poles the aurora reaches.
- Kp 4
- Kp for photos
- In photos: from Kp 2.3 (a red glow low in the north).
- Look towards
- north (2°)
Cloud layers and weather
Low cloud blocks the aurora completely. Thin high cloud often still lets a bright aurora shine through, so a sky with only high cloud is worth a look.
| Time | Wed, 19 | Wed, 22 | Thu, 01 | Thu, 04 | Thu, 19 | Thu, 22 | Fri, 01 | Fri, 04 | Fri, 19 | Fri, 22 | Sat, 01 | Sat, 04 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Low cloud | 0% | 0% | 0% | 0% | 0% | 2% | 4% | 2% | 0% | 0% | 0% | 0% |
| Mid cloud | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 4% | 84% | 82% | 74% | 88% |
| High cloud | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 8% | 38% | 69% | 76% |
| Temperature | 13 °C | 11 °C | 10 °C | 8 °C | 14 °C | 13 °C | 12 °C | 10 °C | 17 °C | 16 °C | 16 °C | 14 °C |
| Feels like | 13 °C | 11 °C | 10 °C | 8 °C | 14 °C | 13 °C | 12 °C | 10 °C | 17 °C | 16 °C | 16 °C | 14 °C |
| Wind | 1 m/s | 1 m/s | 1 m/s | 2 m/s | 2 m/s | 2 m/s | 3 m/s | 3 m/s | 4 m/s | 4 m/s | 5 m/s | 5 m/s |
Cloud layers and weather: Open-Meteo (CC BY 4.0).
Score = activity (NOAA Kp and OVATION) × clear sky (MET Norway) × darkness × moonlight. Methodology
Weather in Ladysmith
The aurora only shows through clear skies, so the weather matters as much as the Kp index. Here is the general forecast for Ladysmith: temperature, wind and the chance of rain for the coming days.
Planning further ahead? See the hour-by-hour weather forecast for Ladysmith on Atlas of Seasons.
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Live webcams near Ladysmith
Check the sky for yourself: public cameras within 300 km. They open on the camera owner's website.
These cameras belong to their owners — we only link to them. Most show little in daylight or under cloud, and some pause in summer.
Do you host guests in Ladysmith? Give them a free aurora forecast page and a QR poster for your property. Create a guest page →
What you would see from Ladysmith
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 | Below the horizon | 3° | 9° | 867 km |
| 3 | Faint glow, mostly on camera | 6° | 14° | 645 km |
| 4 | Visible to the north | 12° | 23° | 423 km |
| 5 | Visible to the north | 27° | 44° | 200 km |
| 6 | Overhead and all around | – | – | – |
| 7 | Overhead and all around | – | – | – |
| 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 camera in Ladysmith Only under the auroral oval: northern Norway, Swedish and Finnish Lapland, Iceland, Alaska, northern Canada.
- Kp 3 Unsettled Bright in the Arctic; low on the horizon in central Scandinavia and southern Iceland.
- Kp 4 Active next 24 h eye in Ladysmith 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
Suburban sky. Noticeable sky glow. Bright displays are visible, but driving out of town makes a clear difference.
A noticeably darker area starts about 5 km to the west. 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
The horizon towards the north is open (terrain below 0.3°), so low aurora is not blocked.
From elevation data (AWS Terrain Tiles) along seven lines of sight up to 30 km.
Best months to see the aurora in Ladysmith
Share of nights 2005–2025 that were dark, active enough here and mostly clear.
September has been the best month (13% of nights), followed by March (12%).
| Month | Good nights | Clear nights | Darkness | Low / high |
|---|---|---|---|---|
| September | 13% | 71% | 9.1 h | 11° / 22°C |
| October | 9% | 56% | 10.9 h | 3° / 14°C |
| November | 6% | 44% | 12.0 h | -4° / 5°C |
| December | 4% | 37% | 12.6 h | -12° / -4°C |
| January | 5% | 53% | 12.4 h | -16° / -6°C |
| February | 10% | 66% | 11.4 h | -15° / -5°C |
| March | 12% | 62% | 9.9 h | -6° / 4°C |
| April | 7% | 55% | 8.1 h | 0° / 12°C |
Aurora nights in Ladysmith 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
- Chippewa Valley Regional Airport (EAU) · 73 km
- Typical low / high in September
- 11° / 22°C
- What to wear
- Cool nights: layers, a windproof jacket, hat and gloves for standing still outside. 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 Ladysmith?
Ladysmith needs an active night: from about Kp 4 the aurora appears low over the north horizon, and it rises higher as activity grows.
Which way should I look for the aurora in Ladysmith?
Face north (about 2° from true north). At Kp 4 the lower edge of the aurora sits roughly 12° above the horizon; stronger activity lifts it higher and further across the sky.
What is the best month to see the aurora in Ladysmith?
Over 2005–2025, September gave the best odds in Ladysmith (13% of nights dark, active enough and mostly clear), followed by March (12%).
When is the aurora season in Ladysmith?
Ladysmith 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 Ladysmith?
Noticeable sky glow. Bright displays are visible, but driving out of town makes a clear difference. A noticeably darker area starts about 5 km to the west.
When was the aurora last possible in Ladysmith?
Activity last reached storm level (Kp 5 or more) during darkness in Ladysmith on 4 October 2026 (Kp 5.0) — 940 such nights since 1995. Here the aurora also appears on many quieter nights.
Also covered by this forecast
Villages and districts around Ladysmith share its forecast: within a few kilometres the sky, the Kp needed and the best direction are the same.
- City of Ladysmith 1 km
- Highway Eight Trailer Court 1 km
- Willow Lane Trailer Park 2 km
- Rusk County 3 km
- Town of Flambeau 5 km
- Town of Grant 5 km
- Port Arthur 6 km
- Town of Thornapple 9 km
- Tony 9 km
- Village of Tony 9 km
- Conrath 10 km
- Village of Conrath 10 km
- Town of Grow 10 km
- Town of Dewey 11 km
- Thornapple 11 km
- Flambeau Estates 12 km
- Bruce 13 km
- Village of Bruce 13 km
- Rivers Edge 13 km
- Imalone 14 km
- Town of Willard 14 km
- Apollonia 15 km
- Town of Hubbard 15 km
- Town of Big Falls 17 km
- Glen Flora 17 km
- Village of Glen Flora 17 km
- Town of Marshall 17 km
- Murry 17 km
- Town of Atlanta 18 km
- Town of True 18 km
- Town of Washington 18 km
- Village of Sheldon 20 km
- Town of Stubbs 20 km
- Town of Lawrence 21 km
- Sheldon 21 km
- Town of Murry 22 km
- Ingram 23 km
- Village of Ingram 23 km
- Town of Cedar Rapids 24 km
- Town of McKinley 24 km