Moon · August 2026
Moon calendar for Decatur, Illinois, United States: August 2026
Daily moon phases, illumination, moonrise and moonset in Decatur, Illinois, United States for August 2026. Full moon: August 28, 2026. All times are shown in the local time of Decatur, Illinois, United States.
Full moonFriday, August 28, 2026, 2:00 AM
New moonWednesday, August 12, 2026, 10:40 AM
| Day | Phase | Illumination | Moonrise | Moonset |
|---|---|---|---|---|
| 1 | Waning Gibbous | 91% | 9:32 PM | 9:24 AM |
| 2 | Waning Gibbous | 84% | 9:42 PM | 10:19 AM |
| 3 | Waning Gibbous | 75% | 10:15 PM | 11:33 AM |
| 4 | Waning Gibbous | 65% | 10:27 PM | 12:29 PM |
| 5 | Last Quarter | 53% | 11:23 PM | 1:51 PM |
| 6 | Last Quarter | 42% | 11:45 PM | 3:25 PM |
| 7 | Waning Crescent | 30% | — | 4:25 PM |
| 8 | Waning Crescent | 20% | 12:28 AM | 5:40 PM |
| 9 | Waning Crescent | 12% | 1:41 AM | 6:29 PM |
| 10 | Waning Crescent | 5% | 2:49 AM | 7:33 PM |
| 11 | Waning Crescent | 1% | 4:16 AM | 8:02 PM |
| 12 | New Moon | 0% | 5:36 AM | 8:24 PM |
| 13 | Waxing Crescent | 1% | 6:34 AM | 8:50 PM |
| 14 | Waxing Crescent | 5% | 7:55 AM | 9:30 PM |
| 15 | Waxing Crescent | 11% | 9:15 AM | 9:38 PM |
| 16 | Waxing Crescent | 19% | 10:17 AM | 10:08 PM |
| 17 | Waxing Crescent | 27% | 11:28 AM | 10:24 PM |
| 18 | Waxing Crescent | 37% | 12:22 PM | 10:56 PM |
| 19 | First Quarter | 46% | 1:32 PM | 11:35 PM |
| 20 | First Quarter | 56% | 2:22 PM | — |
| 21 | Waxing Gibbous | 65% | 3:30 PM | 12:14 AM |
| 22 | Waxing Gibbous | 74% | 4:15 PM | 12:52 AM |
| 23 | Waxing Gibbous | 81% | 4:54 PM | 1:43 AM |
| 24 | Waxing Gibbous | 88% | 5:37 PM | 2:37 AM |
| 25 | Waxing Gibbous | 94% | 6:14 PM | 3:45 AM |
| 26 | Waxing Gibbous | 98% | 6:28 PM | 4:43 AM |
| 27 | Full Moon | 100% | 7:04 PM | 5:50 AM |
| 28 | Full Moon | 100% | 7:34 PM | 6:59 AM |
| 29 | Waning Gibbous | 98% | 7:43 PM | 8:08 AM |
| 30 | Waning Gibbous | 93% | 8:16 PM | 9:24 AM |
| 31 | Waning Gibbous | 87% | 8:27 PM | 10:21 AM |
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Frequently asked questions
When is the full moon in August 2026 in Decatur, Illinois, United States?
The full moon peaks on Friday, August 28, 2026, 2:00 AM (local time).
When is the new moon in August 2026?
The new moon falls on Wednesday, August 12, 2026, 10:40 AM (local time) — the darkest nights of the month, best for stargazing.
Data: Meeus astronomical algorithms. How we calculate this
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