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Will it freeze in Bluffton in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 32°F (Sat, Nov 7, 6:00 PM EST to Sun, Nov 8, 6:00 AM EST).
Tonight: forecast low 44°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
5 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 44°F Above 36°F · Chance Rain Showers
- Fri, Nov 6 36°F Frost possible · Mostly Cloudy
- Sat, Nov 7 32°F Freeze · Partly Cloudy
- Sun, Nov 8 34°F Frost possible · Mostly Clear
- Mon, Nov 9 40°F Above 36°F · Mostly Clear
- Tue, Nov 10 36°F Frost possible · Mostly Clear
- Wed, Nov 11 36°F Frost possible · Partly Cloudy
Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.
Frost and freeze probabilities
Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.
These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.
Average first hard freeze in Bluffton
The median first fall hard-freeze date (28°F) is November 1, from NOAA’s 1991–2020 Climate Normals at Bluffton 6N. This is the 50% probability date, not a forecast for this year.
| Temperature | Last spring date 90% · 50% · 10% chance of a later freeze | First fall date 10% · 50% · 90% chance of an earlier freeze | Season |
|---|---|---|---|
| 36°F frost possible | Apr 20 · May 3 · May 18 | Sep 27 · Oct 10 · Oct 22 | 157 days |
| 32°F freeze | Apr 10 · Apr 24 · May 9 | Oct 6 · Oct 20 · Nov 3 | 179 days |
| 28°F hard freeze | Mar 30 · Apr 12 · Apr 27 | Oct 19 · Nov 1 · Nov 15 | 202 days |
Average high temperature by month
1991–2020 normals at Bluffton 6N
Average low temperature by month
Months with lows near or below freezing carry frost risk
Where these frost dates come from
The frost dates for Bluffton, IN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Bluffton 6N (station USC00120830, elevation 861 ft), 5.0 mi from Bluffton. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.
Frost dates near Bluffton
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Decatur, IN | 14 mi | Apr 23 | Oct 19 |
| Huntington, IN | 20 mi | May 1 | Oct 14 |
| Hartford City, IN | 22 mi | Apr 22 | Oct 22 |
| Portland, IN | 24 mi | Apr 28 | Oct 15 |
| New Haven, IN | 24 mi | Apr 27 | Oct 19 |
| Fort Wayne, IN | 24 mi | Apr 24 | Oct 21 |
| Gas City, IN | 29 mi | Apr 26 | Oct 20 |
| Marion, IN | 29 mi | Apr 26 | Oct 20 |
| Van Wert, OH | 32 mi | Apr 21 | Oct 26 |
| Huntertown, IN | 33 mi | May 2 | Oct 10 |
Frequently asked questions
When is the last frost in Bluffton?
On average, the last spring frost (32°F) in Bluffton is around April 24. In about 1 year in 10 it comes after May 9, and in 9 years in 10 it comes after April 10.
When is the first frost in Bluffton?
The first fall frost (32°F) usually arrives around October 20. There’s a 10% chance of a freeze by October 6 and a 90% chance by November 3.
Can it frost in Bluffton after the last frost date?
Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after May 3.
What growing zone is Bluffton?
Bluffton is in USDA Plant Hardiness Zone 6a (average annual extreme minimum temperature −10 to −5°F), based on the 2023 USDA map for ZIP code 46714. See growing zones in Indiana.
More: all Indiana frost dates · Indiana growing zones · frost vs. freeze