Aurora Borealis in Post Falls
United States · 47.72°, -116.95° · geomagnetic 53.9° · needs Kp 7
Tonight's aurora forecast for Post Falls
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. Post Falls needs Kp 7 to see anything at all, and tonight the forecast peaks at Kp 4.7. Short of the threshold, which is what most nights look like here.
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Updated 2026-09-08 10:36 UTC
Local aurora guide for Post Falls
Post Falls is located at 53.9° geomagnetic latitude. Auroras are typically visible at this latitude when the Kp index reaches 7.
On average, there are about 3.2 nights per year in Post Falls where conditions are suitable for aurora viewing.
The historical record for aurora sightings in this region spans from April 2, 2016, to March 30, 2026.
The best months for aurora viewing in Post Falls are May, September, and August.
These months align with periods of darker skies, increasing the chances of observing the aurora.
Post Falls experiences a Bortle 5 sky brightness. Areas to the east-north-east and north-west of Post Falls offer darker skies, rated Bortle 4 and Bortle 5 respectively.
The terrain around Post Falls includes features such as Lost Lake, Eisenhour Ridge, and Hauser Lake to the north and north-west.
Further out, Birch Ridge lies to the north, and Cherokee Bay is situated to the west-north-west.
Near Post Falls, geographic features like Lost Lake and Eisenhour Ridge are located to the north-north-west.
Hauser Lake is situated to the north-west of Post Falls.
Birch Ridge is to the north, and Cherokee Bay is to the west-north-west.
Between January 1, 2015, and December 31, 2016, there were 24 verified aurora reports within 300 km of Post Falls.
The historical data indicates several nights with high Kp values suitable for aurora viewing.
These include March 20, 2026 (Kp 7.0), January 20, 2026 (Kp 7.67), January 19, 2026 (Kp 8.67), November 12, 2025 (Kp 7.33), and November 11, 2025 (Kp 8.67).
Sources: Revon location dataset · Revon analysis of NOAA planetary Kp · Falchi 2016 World Atlas of artificial night sky brightness · GeoNames (CC BY 4.0) · Aurorasaurus verified positive reports
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