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Will it freeze in Indianapolis in the next 7 nights?
No overnight lows at or below 32°F are forecast in Indianapolis during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 47°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
2 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 47°F Above 36°F · Scattered Rain Showers
- Fri, Nov 6 38°F Above 36°F · Partly Cloudy
- Sat, Nov 7 34°F Frost possible · Partly Cloudy
- Sun, Nov 8 36°F Frost possible · Mostly Clear
- Mon, Nov 9 40°F Above 36°F · Clear
- Tue, Nov 10 40°F Above 36°F · Mostly Clear
- Wed, Nov 11 39°F Above 36°F · 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 Indianapolis
The median first fall hard-freeze date (28°F) is November 1, from NOAA’s 1991–2020 Climate Normals at Indianapolis SE Side. 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 16 · Apr 30 · May 17 | Sep 27 · Oct 11 · Oct 24 | 161 days |
| 32°F freeze | Apr 6 · Apr 20 · May 5 | Oct 7 · Oct 21 · Nov 3 | 183 days |
| 28°F hard freeze | Mar 25 · Apr 7 · Apr 23 | Oct 20 · Nov 1 · Nov 15 | 205 days |
Average high temperature by month
1991–2020 normals at Indianapolis SE Side
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 Indianapolis, IN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Indianapolis SE Side (station USC00124272, elevation 845 ft), 5.9 mi from Indianapolis. 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 Indianapolis
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Beech Grove, IN | 5.0 mi | Apr 20 | Oct 21 |
| Speedway, IN | 5.6 mi | Apr 12 | Oct 29 |
| Lawrence, IN | 11 mi | Apr 18 | Oct 26 |
| Cumberland, IN | 11 mi | Apr 20 | Oct 21 |
| Greenwood, IN | 12 mi | Apr 20 | Oct 21 |
| Carmel, IN | 13 mi | Apr 21 | Oct 21 |
| Avon, IN | 13 mi | Apr 12 | Oct 29 |
| Brownsburg, IN | 13 mi | Apr 12 | Oct 29 |
| Plainfield, IN | 14 mi | Apr 12 | Oct 27 |
| McCordsville, IN | 15 mi | Apr 18 | Oct 26 |
Frequently asked questions
When is the last frost in Indianapolis?
On average, the last spring frost (32°F) in Indianapolis is around April 20. In about 1 year in 10 it comes after May 5, and in 9 years in 10 it comes after April 6.
When is the first frost in Indianapolis?
The first fall frost (32°F) usually arrives around October 21. There’s a 10% chance of a freeze by October 7 and a 90% chance by November 3.
Can it frost in Indianapolis 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 April 30.
What growing zone is Indianapolis?
Indianapolis is in USDA Plant Hardiness Zone 6b (average annual extreme minimum temperature −5 to 0°F), based on the 2023 USDA map for ZIP code 46204. See growing zones in Indiana.
More: all Indiana frost dates · Indiana growing zones · UV index today in Indianapolis · frost vs. freeze