Moon tonight · Helena, MT
Moon Phase Tonight in Helena, MT
Tonight's Moon in Helena, MT is a first quarter, 41% illuminated, rising Sat, Oct 17, 2:57 PM MDT and setting Sat, Oct 17, 11:09 PM MDT.
Live moon phase and illumination with local moonrise, moonset and transit times for Helena, MT, plus how tonight's moonlight affects stargazing and aurora viewing.
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First Quarter
41% illuminated · 7.1 days into the lunar cycle
Moonrise
Highest in sky
Moonset
Local time (America/Denver), next events after this page was generated. Calculated with astronomy-engine for 46.60°, -112.04°.
Local sky conditions
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Moon impact on stargazing & aurora
At 41% illumination moonlight is moderate: a strong aurora still shows, but faint activity and dim nebulae are washed out while the Moon is up.
Aurora at 46.6° latitude generally needs about Kp 6.8.
Moon tonight in Helena: common questions
What is tonight's moon phase in Helena, MT?
Tonight's Moon in Helena, MT is a First Quarter, about 41% illuminated and 7.1 days into the lunar cycle, calculated for 2026-10-17 (UTC). The phase is the same worldwide; its tilt and the times it is above the horizon depend on your location.
What time is moonrise and moonset in Helena, MT tonight?
The next moonrise in Helena, MT is Sat, Oct 17, 2:57 PM MDT and the next moonset is Sat, Oct 17, 11:09 PM MDT (local time, America/Denver). Times are calculated from the city's coordinates with the astronomy-engine library and refer to the geometric rise and set of the Moon's upper limb.
How does tonight's moonlight affect stargazing and aurora viewing in Helena, MT?
At 41% illumination moonlight is moderate: a strong aurora still shows, but faint activity and dim nebulae are washed out while the Moon is up. Check clear-sky and aurora conditions for Helena, MT on the linked aurora and sky-tonight pages before heading out.