06/04/2026
Northern Lights Forecast for Maine
Thursday Night, June 4, 2026
Maine has a legitimate opportunity to see the northern lights tonight as multiple coronal mass ejections arrive at Earth. NOAA’s Space Weather Prediction Center has issued a **G3 Strong Geomagnetic Storm Watch**, with moderate to strong geomagnetic storming expected to continue through the evening and overnight hours.
The forecast peaks near **Kp 7** between **8:00 and 11:00 p.m. EDT**, followed by Kp 6-level activity between **11:00 p.m. and 5:00 a.m.** That should be enough for the aurora to become visible across much of Maine if the storm develops as expected.
Best Time to Look
The sky will still be too bright early in the evening because we are approaching the longest days of the year. Start checking the northern horizon around **9:30 p.m.** The best viewing window should be roughly **10:00 p.m. to 2:00 a.m.**
Northern Maine may have stronger aurora activity, but it will also take longer for the sky to become fully dark. In Presque Isle, astronomical twilight does not end until shortly after **11:00 p.m.**
Sky Conditions
Cloud cover should not ruin the opportunity, although conditions will not be perfectly clear everywhere. Southern and western Maine should have some of the cleaner viewing conditions with mostly clear skies and light winds. Clouds may gradually increase overnight in parts of central, eastern, and northern Maine, so it is worth checking earlier rather than waiting until the middle of the night.
Viewing Tips
Find a dark location away from city lights with an unobstructed view toward the north. The aurora may initially appear as a faint gray or pale-green glow to the naked eye. A phone camera using night mode or a longer exposure may capture colors and detail that are difficult to see at first.
This is a promising setup, but the exact timing and intensity will depend on how the incoming solar material interacts with Earth’s magnetic field. Check the sky periodically after 9:30 p.m., especially if NOAA confirms stronger storm levels during the evening.
