DENVER — We’re wrapping up Monday night with calm, mild weather. But don’t let that fool you: big changes are coming starting Tuesday.

Before things turn active, though, we might just get a rare treat in the sky tonight.

Skies will be partly cloudy tonight, with temperatures dipping to around 50°F.

Light winds and mostly dry conditions will make for a peaceful evening and a possible chance to see the northern lights.

NOAA is forecasting a G1 geomagnetic storm tonight with a Kp index of 5, meaning the aurora borealis could be visible as far south as northern Colorado.

If skies stay clear and you’re outside the city, away from light pollution, look toward the northern horizon after dark, you might spot a faint green or red glow.

For the best chance, try using a long-exposure camera to

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