Aurora Borealis in Walnut Grove
Canada · 49.16°, -122.64° · geomagnetic 54.6° · needs Kp 7
Tonight's aurora forecast for Walnut Grove
2%
Peak chance of a visible display tonight, from the same model the Revon app runs. Walnut Grove 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 10:35 UTC
Local aurora guide for Walnut Grove
Walnut Grove is at a geomagnetic latitude of 54.6°.
Auroras are typically visible when the planetary Kp index reaches 7.
An average of 3.1 nights per year meet this threshold.
The best months for aurora viewing in Walnut Grove are May, September, and August.
June experiences no full darkness, which can impact viewing conditions.
Walnut Grove has a Bortle scale rating of 6.
Darker skies, rated Bortle 4, can be found 30 km east-north-east near Area F (McConnell Creek/Hatzic Prairie).
Other areas with darker skies, rated Bortle 5, are located 14 km north-east near Maple Ridge.
Mann Point, a headland, is located 4.4 km north-north-west of Walnut Grove.
Tavistock Point, another headland, is 4.6 km north-east of Walnut Grove.
McMillan Island is an island situated 5.2 km east-north-east of Walnut Grove.
Between 2016 and 2026, there were 3.1 viable aurora nights per year on average.
The period of record for these observations is from April 2, 2016, to March 30, 2026.
Notable qualifying nights include March 20, 2026 (Kp 7.0), January 20, 2026 (Kp 7.67), and January 19, 2026 (Kp 8.67).
Sources: Revon analysis of NOAA planetary Kp · Solar declination and hour-angle calculation · Falchi 2016 World Atlas of artificial night sky brightness · GeoNames (CC BY 4.0)
Know when it is worth going outside
Revon watches the Walnut Grove 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 Walnut Grove.