Aurora Borealis in Cottage Lake
United States · 47.74°, -122.08° · geomagnetic 53.3° · needs Kp 7
Tonight's aurora forecast for Cottage Lake
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. Cottage Lake 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.
Get the full 30-night forecast in Revon
Updated 2026-09-08 10:36 UTC
Local aurora guide for Cottage Lake
Cottage Lake is at a geomagnetic latitude of 53.3°. Auroras are typically visible when the planetary Kp index reaches 7.
On average, there are about 3.2 nights per year when conditions are favorable for aurora viewing.
The record span for these observations is from April 2, 2016, to March 30, 2026.
The best months for aurora viewing in Cottage Lake are May, August, and September.
These months align with periods of darker skies, increasing the potential for aurora visibility.
Cottage Lake experiences a Bortle 6 sky. Nearby areas, such as east of King County, offer darker Bortle 4 skies.
The local horizon features Paradise Lake to the north-north-east, Ring Hill to the east, and Lake Leota to the west-north-west.
Other notable features include Mount Forest to the north-east and the Cherry Valley State Wildlife Area to the east.
Areas around Cottage Lake include Paradise Lake, located to the north-north-east.
Ring Hill is situated to the east, and Lake Leota lies to the west-north-west.
Mount Forest is to the north-east, and the Cherry Valley State Wildlife Area is to the east.
There have been 60 verified aurora reports within 300 km of Cottage Lake between January 1, 2015, and December 31, 2016.
Notable qualifying nights with high Kp values include March 20, 2026 (Kp 7.0), January 20, 2026 (Kp 7.67), and January 19, 2026 (Kp 8.67).
Additional qualifying nights occurred on November 12, 2025 (Kp 7.33) and November 11, 2025 (Kp 8.67).
Sources: Revon analysis of NOAA planetary Kp · Falchi 2016 World Atlas of artificial night sky brightness · GeoNames (CC BY 4.0) · Aurorasaurus verified positive reports
Know when it is worth going outside
Revon watches the Cottage Lake forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.
Nearby towns
Forecasts for places within reach of Cottage Lake.