Moon phase, moonrise and moonset times in Great Falls, Montana, United States
Current local time 10:26:20 PM (UTC-6)
Today, September 17
- Moonrise1:50 AMMoonset5:32 PM
- Moon PhaseWaning crescentIlumination17%
Tomorrow, September 18
- Moonrise3:00 AMMoonset6:04 PM
- Moon PhaseWaning crescentIlumination10%
- Third Quarter14 September4:33 AM
- New Moon21 September1:54 PM
- First Quarter29 September5:53 PM
- Full Moon6 October9:47 PM
- Third Quarter13 October12:12 PM
September 2025 — Moon in Great Falls
| Icon | Date | Moonrise | Moonset | Moonrise | Moon phase | Illumination | |
|---|---|---|---|---|---|---|---|
| September 1 | Mon | — | 12:24 AM | 4:46 PM | Waxing gibbous | 64% | |
| September 2 | Tue | — | 1:20 AM | 5:35 PM | Waxing gibbous | 73% | |
| September 3 | Wed | — | 2:24 AM | 6:15 PM | Waxing gibbous | 82% | |
| September 4 | Thu | — | 3:32 AM | 6:49 PM | Waxing gibbous | 89% | |
| September 5 | Fri | — | 4:43 AM | 7:17 PM | Waxing gibbous | 95% | |
| September 6 | Sat | — | 5:55 AM | 7:41 PM | Waxing gibbous | 99% | |
| September 7 | Sun | — | 7:06 AM | 8:04 PM | Full moon | 100% | |
| September 8 | Mon | — | 8:16 AM | 8:26 PM | Waning gibbous | 99% | |
| September 9 | Tue | — | 9:27 AM | 8:48 PM | Waning gibbous | 95% | |
| September 10 | Wed | — | 10:38 AM | 9:13 PM | Waning gibbous | 88% | |
| September 11 | Thu | — | 11:50 AM | 9:41 PM | Waning gibbous | 79% | |
| September 12 | Fri | — | 1:00 PM | 10:15 PM | Waning gibbous | 69% | |
| September 13 | Sat | — | 2:09 PM | 10:56 PM | Waning gibbous | 58% | |
| September 14 | Sun | — | 3:12 PM | 11:46 PM | Third quarter | 47% | |
| September 15 | Mon | — | 4:08 PM | — | Waning crescent | 36% | |
| September 16 | Tue | 12:44 AM | 4:54 PM | — | Waning crescent | 25% | |
| September 17 | Wed | 1:50 AM | 5:32 PM | — | Waning crescent | 17% | |
| September 18 | Thu | 3:00 AM | 6:04 PM | — | Waning crescent | 10% | |
| September 19 | Fri | 4:11 AM | 6:30 PM | — | Waning crescent | 4% | |
| September 20 | Sat | 5:22 AM | 6:54 PM | — | Waning crescent | 1% | |
| September 21 | Sun | 6:33 AM | 7:16 PM | — | New moon | 0% | |
| September 22 | Mon | 7:44 AM | 7:38 PM | — | Waxing crescent | 1% | |
| September 23 | Tue | 8:55 AM | 8:01 PM | — | Waxing crescent | 4% | |
| September 24 | Wed | 10:06 AM | 8:27 PM | — | Waxing crescent | 8% | |
| September 25 | Thu | 11:17 AM | 8:57 PM | — | Waxing crescent | 14% | |
| September 26 | Fri | 12:28 PM | 9:33 PM | — | Waxing crescent | 21% | |
| September 27 | Sat | 1:35 PM | 10:16 PM | — | Waxing crescent | 29% | |
| September 28 | Sun | 2:36 PM | 11:09 PM | — | Waxing crescent | 38% | |
| September 29 | Mon | — | — | 3:28 PM | First quarter | 48% | |
| September 30 | Tue | — | 12:10 AM | 4:13 PM | Waxing gibbous | 57% |
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