Last year Union held trick-or-treat on Friday, October 31, 2025, 3–5:45 p.m.
Source: Shaw Local / Northwest Herald, Oct. 30, 2025 · checked Sept. 25, 2026
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| Town | 2026 | Last year (2025) |
|---|---|---|
| Algonquin | Not posted yet | Fri, Oct. 31, 3–7 p.m. |
| Cary | Sat, Oct. 31, 3–7 p.m. | Fri, Oct. 31, 3–7 p.m. |
| Crystal Lake | Not posted yet | Fri, Oct. 31, 3–7 p.m. |
| Fox River Grove | Not posted yet | Fri, Oct. 31, 3:30–7:30 p.m. |
| Harvard | Not posted yet | Fri, Oct. 31, 4–8 p.m. |
| Hebron | Not posted yet | Fri, Oct. 31, 4–8 p.m. |
| Holiday Hills | Not posted yet | Fri, Oct. 31, 4–8 p.m. |
| Huntley | Not posted yet | Fri, Oct. 31, 4–8 p.m. |
| Island Lake | Not posted yet | Fri, Oct. 31, 4–8 p.m. |
| Johnsburg | Not posted yet | Fri, Oct. 31, 3–7 p.m. |
| Lake in the Hills | Not posted yet | Fri, Oct. 31, 2–8 p.m. |
| Lakewood | Not posted yet | Fri, Oct. 31, 4–7 p.m. |
| Marengo | Not posted yet | Fri, Oct. 31, 3–8 p.m. |
| McCullom Lake | Not posted yet | Fri, Oct. 31, 4–8 p.m. |
| McHenry | Not posted yet | Fri, Oct. 31, 4–8 p.m. |
| Oakwood Hills | Not posted yet | Fri, Oct. 31, 3–7 p.m. |
| Port Barrington | Not posted yet | Sun, Oct. 26, 1–4 p.m. |
| Prairie Grove | Not posted yet | Fri, Oct. 31, 4–7 p.m. |
| Richmond | Not posted yet | Fri, Oct. 31, 4–7 p.m. |
| Wonder Lake | Not posted yet | Fri, Oct. 31, 3–8 p.m. |
| Woodstock | Sat, Oct. 31, 4–7 p.m. | Fri, Oct. 31, 4–7 p.m. |
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Open the Halloween map →Hours come from town, police and county announcements and from local news reports; each entry links to the page it came from and shows when we checked it. Plans change for weather, so check your town's own page or social media on the day. Spotted a change or a missing town? Send us the times and the link with the form on this page, or email contact@frightmaps.com.
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