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Will it freeze in Sturtevant 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 37°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.
3 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 37°F Above 36°F · Isolated Rain Showers then Mostly Cloudy
- Fri, Nov 6 31°F Freeze · Partly Cloudy
- Sat, Nov 7 34°F Frost possible · Partly Cloudy
- Sun, Nov 8 35°F Frost possible · Mostly Clear
- Mon, Nov 9 40°F Above 36°F · Mostly Clear
- Tue, Nov 10 38°F Above 36°F · Partly Cloudy
- 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 Sturtevant
The median first fall hard-freeze date (28°F) is November 3, from NOAA’s 1991–2020 Climate Normals at Racine. 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 4 · May 21 | Sep 29 · Oct 13 · Oct 27 | 161 days |
| 32°F freeze | Apr 7 · Apr 20 · May 6 | Oct 8 · Oct 24 · Nov 5 | 184 days |
| 28°F hard freeze | Mar 28 · Apr 9 · Apr 23 | Oct 19 · Nov 3 · Nov 16 | 207 days |
Average high temperature by month
1991–2020 normals at Racine
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 Sturtevant, WI come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Racine (station USC00476922, elevation 595 ft), 5.8 mi from Sturtevant. 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 Sturtevant
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Mount Pleasant, WI | 1.2 mi | Apr 20 | Oct 24 |
| Somers, WI | 3.7 mi | Apr 28 | Oct 19 |
| Racine, WI | 5.0 mi | Apr 20 | Oct 24 |
| Caledonia, WI | 6.8 mi | Apr 24 | Oct 24 |
| Union Grove, WI | 7.5 mi | May 5 | Oct 8 |
| Kenosha, WI | 8.1 mi | Apr 28 | Oct 19 |
| Pleasant Prairie, WI | 12 mi | Apr 19 | Oct 26 |
| Oak Creek, WI | 12 mi | Apr 22 | Oct 26 |
| Bristol, WI | 13 mi | Apr 30 | Oct 15 |
| Franklin, WI | 14 mi | May 3 | Oct 14 |
Frequently asked questions
When is the last frost in Sturtevant?
On average, the last spring frost (32°F) in Sturtevant is around April 20. In about 1 year in 10 it comes after May 6, and in 9 years in 10 it comes after April 7.
When is the first frost in Sturtevant?
The first fall frost (32°F) usually arrives around October 24. There’s a 10% chance of a freeze by October 8 and a 90% chance by November 5.
Can it frost in Sturtevant 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 4.
What growing zone is Sturtevant?
Sturtevant is in USDA Plant Hardiness Zone 5b (average annual extreme minimum temperature −15 to −10°F), based on the 2023 USDA map for ZIP code 53177. See growing zones in Wisconsin.
More: all Wisconsin frost dates · Wisconsin growing zones · frost vs. freeze