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Will it freeze in Peoria in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Fri, Nov 6: 31°F (Fri, Nov 6, 6:00 PM CST to Sat, Nov 7, 6:00 AM CST).
Tonight: forecast low 41°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.
2 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 41°F Above 36°F · Chance Light Rain then Cloudy
- Fri, Nov 6 31°F Freeze · Mostly Clear
- Sat, Nov 7 34°F Frost possible · Mostly Clear
- Sun, Nov 8 37°F Above 36°F · Mostly Clear
- Mon, Nov 9 43°F Above 36°F · Clear
- Tue, Nov 10 42°F Above 36°F · Mostly Clear
- Wed, Nov 11 41°F Above 36°F · Mostly Clear
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 Peoria
The median first fall hard-freeze date (28°F) is November 2, from NOAA’s 1991–2020 Climate Normals at Peoria Gtr Peoria Airport. 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 14 · Apr 27 · May 14 | Sep 28 · Oct 14 · Oct 25 | 168 days |
| 32°F freeze | Apr 2 · Apr 16 · May 4 | Oct 9 · Oct 23 · Nov 3 | 189 days |
| 28°F hard freeze | Mar 19 · Apr 5 · Apr 21 | Oct 21 · Nov 2 · Nov 16 | 212 days |
Average high temperature by month
1991–2020 normals at Peoria Gtr Peoria Airport
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 Peoria, IL come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Peoria Gtr Peoria Airport (station USW00014842, elevation 650 ft), 6.8 mi from Peoria. 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 Peoria
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Peoria Heights, IL | 2.5 mi | Apr 16 | Oct 23 |
| East Peoria, IL | 6.8 mi | Apr 16 | Oct 23 |
| Bartonville, IL | 8.1 mi | Apr 16 | Oct 23 |
| Washington, IL | 9.9 mi | Apr 21 | Oct 17 |
| Morton, IL | 12 mi | Apr 21 | Oct 17 |
| Pekin, IL | 12 mi | Apr 16 | Oct 23 |
| Chillicothe, IL | 13 mi | Apr 20 | Oct 17 |
| Eureka, IL | 18 mi | Apr 21 | Oct 17 |
| Canton, IL | 25 mi | Apr 17 | Oct 19 |
| Normal, IL | 37 mi | Apr 25 | Oct 16 |
Frequently asked questions
When is the last frost in Peoria?
On average, the last spring frost (32°F) in Peoria is around April 16. In about 1 year in 10 it comes after May 4, and in 9 years in 10 it comes after April 2.
When is the first frost in Peoria?
The first fall frost (32°F) usually arrives around October 23. There’s a 10% chance of a freeze by October 9 and a 90% chance by November 3.
Can it frost in Peoria 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 27.
What growing zone is Peoria?
Peoria 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 61614. See growing zones in Illinois.
More: all Illinois frost dates · Illinois growing zones · UV index today in Peoria · frost vs. freeze