Alaska aurora forecast tonight — Fairbanks, Anchorage & live Kp
Live aurora odds for Alaska — tonight's Kp versus the Kp 1.3 the state needs, plus where and when to look.
Tonight Alaska needs Kp 1.3; the current Kp is 1.33, so aurora odds over Alaska are good — Cosmik tracks it live, free.
🟢 Aurora is a real possibility over Alaska tonight
Tonight's forecast Kp reaches or beats the Kp 1.3 Alaska needs — get away from city lights and look north.
Kp now
1.33
Tonight max
2.67
Alaska needs
Kp 1.3
Geomag. latitude
63.5°
Live NOAA SWPC data, refreshed every 30 min.
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Tonight's Kp vs the Kp Alaska needs (Kp 1.3), plus cloud cover over Alaska — sent when a storm is forecast.
No aurora is ever guaranteed — Pro tells you when it's genuinely worth stepping outside.
Aurora across all of Alaska
The aurora season runs September through March, when nights are long and dark. Around the equinoxes (late September and March) geomagnetic activity statistically peaks, so those are the strongest windows for Alaska.
Aurora forecast for Alaska cities tonight
| City | Needs | Tonight |
|---|---|---|
| Fairbanks aurora forecast | Kp 0.5 | good |
| Delta Junction aurora forecast | Kp 0.8 | good |
| Willow aurora forecast | Kp 2.3 | possible but marginal |
| Anchorage aurora forecast | Kp 2.6 | possible but marginal |
Interior Alaska (Fairbanks, Delta Junction) sits under the auroral oval, so any clear, dark night with modest activity can bring the aurora overhead; Southcentral Alaska (Anchorage, Willow) needs a little more and usually sees it to the north.
Best aurora viewing spots near Fairbanks
- Cleary Summit — Steese Highway, about 20 miles north of Fairbanks: a high pass above the valley fog with open northern horizons.
- Murphy Dome — about 25 miles northwest of Fairbanks by road: a summit with a near-360° view, far from town lights.
- Chena Lakes Recreation Area — near North Pole, about 20 miles southeast of Fairbanks: the open lake gives a flat, unobstructed horizon.
- Chena Hot Springs — end of Chena Hot Springs Road, about 60 miles east-northeast of Fairbanks: a dark valley resort that runs aurora viewing all season.
Fairbanks' aurora season runs from about August 21 to April 21 — the dates Explore Fairbanks, the city's visitor bureau, uses for nights dark enough around midnight. Outside it, Fairbanks' near-round-the-clock summer daylight keeps the sky too bright, whatever the Kp. Fairbanks aurora forecast tonight → · Anchorage aurora forecast →
Northern lights in Alaska — FAQ
Can I see the northern lights tonight in Alaska?
Good odds: tonight's Kp is 2.7, above the Kp 1.3 Alaska needs. Get away from city lights and watch the northern horizon between about 22:00 and 02:00. Updated every 30 minutes from NOAA SWPC data.
Can you see the northern lights in Alaska?
Yes, on the right night. Alaska needs the planetary Kp index to reach Kp 1.3 for the aurora to appear low on the northern horizon. That happens during geomagnetic storms — Cosmik shows tonight's live odds above so you know before you drive out.
What Kp does Alaska need for the northern lights?
Alaska needs a Kp of about 1.3 for the aurora to become visible from a dark site with a clear northern horizon. That figure comes from the state's geomagnetic latitude (63.5°): the higher your geomagnetic latitude, the lower the Kp you need.
When is the best time to see the aurora in Alaska?
Look between about 10 pm and 2 am local time, on a clear, moonless night, from a spot with no light pollution and an open view to the north. The season peaks September–March, and geomagnetic storms are most frequent near the equinoxes. Cosmik tracks the live Kp so you can catch the exact night it spikes.
Which direction should I look for the aurora in Alaska?
North. From Alaska the auroral oval lies toward the north magnetic pole, so the aurora appears low on the northern horizon first. Pick a spot with an open northward view, away from city lights — your phone's night mode picks up glow your eyes miss.
