Moon phase, moonrise and moonset times in Great Falls, Montana, United States

Current local time 6:16:08 PM (UTC-6)

May 2026 — Moon in Great Falls

Date		Moonrise	Moonset	Moonrise	Moon phase	Illumination
May 1	Fri	—	6:01 AM	8:43 PM	Full moon	100%
May 2	Sat	—	6:30 AM	9:54 PM	Waning gibbous	99%
May 3	Sun	—	7:04 AM	11:02 PM	Waning gibbous	96%
May 4	Mon	—	7:47 AM	—	Waning gibbous	92%
May 5	Tue	12:04 AM	8:38 AM	—	Waning gibbous	86%
May 6	Wed	12:58 AM	9:37 AM	—	Waning gibbous	79%
May 7	Thu	1:44 AM	10:43 AM	—	Waning gibbous	71%
May 8	Fri	2:21 AM	11:53 AM	—	Waning gibbous	61%
May 9	Sat	2:52 AM	1:05 PM	—	Third quarter	52%
May 10	Sun	3:18 AM	2:16 PM	—	Waning crescent	42%
May 11	Mon	3:42 AM	3:27 PM	—	Waning crescent	31%
May 12	Tue	4:04 AM	4:38 PM	—	Waning crescent	22%
May 13	Wed	4:26 AM	5:48 PM	—	Waning crescent	13%
May 14	Thu	4:49 AM	7:00 PM	—	Waning crescent	6%
May 15	Fri	5:15 AM	8:11 PM	—	Waning crescent	2%
May 16	Sat	5:45 AM	9:21 PM	—	New moon	0%
May 17	Sun	6:22 AM	10:28 PM	—	Waxing crescent	1%
May 18	Mon	7:07 AM	11:28 PM	—	Waxing crescent	6%
May 19	Tue	—	—	8:01 AM	Waxing crescent	12%
May 20	Wed	—	12:19 AM	9:03 AM	Waxing crescent	21%
May 21	Thu	—	1:02 AM	10:10 AM	Waxing crescent	31%
May 22	Fri	—	1:37 AM	11:21 AM	Waxing crescent	42%
May 23	Sat	—	2:06 AM	12:32 PM	First quarter	53%
May 24	Sun	—	2:32 AM	1:44 PM	Waxing gibbous	64%
May 25	Mon	—	2:54 AM	2:54 PM	Waxing gibbous	73%
May 26	Tue	—	3:16 AM	4:05 PM	Waxing gibbous	81%
May 27	Wed	—	3:39 AM	5:16 PM	Waxing gibbous	88%
May 28	Thu	—	4:03 AM	6:27 PM	Waxing gibbous	94%
May 29	Fri	—	4:30 AM	7:39 PM	Waxing gibbous	98%
May 30	Sat	—	5:02 AM	8:48 PM	Waxing gibbous	100%
May 31	Sun	—	5:41 AM	9:53 PM	Full moon	100%

Great Falls