# Frost dates for Buffalo Grove, IL (60089)

**Do this (Safe, 2026-11-02):** Frost season started Oct 13. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | May 3 | Oct 13 | 163 |
| Median | Apr 19 | Oct 26 | 190 |
| Bold (9 in 10 years later) | Apr 4 | Nov 9 | 219 |

Frost = 32°F. Station: Chicago Palwaukee AP, IL, 4 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 56°F — Go (tonight)
- 2026-11-02: 60°F — Go
- 2026-11-03: 58°F — Go
- 2026-11-04: 48°F — Go
- 2026-11-05: 44°F — Go
- 2026-11-06: 40°F — Wait
- 2026-11-07: 40°F — Wait

Go above 40°F · Wait 37–40°F · Cover 36°F or less · Freeze 28°F or less.

Source: Frost dates: NOAA NCEI U.S. Climate Normals 1991–2020, station Chicago Palwaukee AP, IL (4 mi, about your height). Not endorsed by NOAA. Nights: National Weather Service.

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