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Will it freeze in Sheboygan 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 Cloudy
- Fri, Nov 6 31°F Freeze · Partly Cloudy
- Sat, Nov 7 34°F Frost possible · Partly Cloudy
- Sun, Nov 8 36°F Frost possible · Mostly Clear
- Mon, Nov 9 41°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 Sheboygan
The median first fall hard-freeze date (28°F) is November 1, from NOAA’s 1991–2020 Climate Normals at Sheboygan. 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 22 · May 5 · May 21 | Sep 30 · Oct 11 · Oct 23 | 157 days |
| 32°F freeze | Apr 11 · Apr 25 · May 11 | Oct 9 · Oct 23 · Nov 2 | 179 days |
| 28°F hard freeze | Mar 31 · Apr 13 · Apr 27 | Oct 21 · Nov 1 · Nov 15 | 202 days |
Average high temperature by month
1991–2020 normals at Sheboygan
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 Sheboygan, WI come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Sheboygan (station USC00477725, elevation 648 ft), 1.1 mi from Sheboygan. 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 Sheboygan
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Sheboygan Falls, WI | 5.0 mi | May 5 | Oct 8 |
| Plymouth, WI | 12 mi | May 3 | Oct 10 |
| Manitowoc, WI | 25 mi | Apr 30 | Oct 20 |
| Port Washington, WI | 25 mi | Apr 27 | Oct 22 |
| Two Rivers, WI | 30 mi | Apr 27 | Oct 21 |
| Grafton, WI | 31 mi | Apr 23 | Oct 24 |
| West Bend, WI | 32 mi | May 1 | Oct 12 |
| Cedarburg, WI | 33 mi | Apr 23 | Oct 24 |
| Fond du Lac, WI | 35 mi | Apr 27 | Oct 19 |
| Jackson, WI | 36 mi | Apr 30 | Oct 15 |
Frequently asked questions
When is the last frost in Sheboygan?
On average, the last spring frost (32°F) in Sheboygan is around April 25. In about 1 year in 10 it comes after May 11, and in 9 years in 10 it comes after April 11.
When is the first frost in Sheboygan?
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 2.
Can it frost in Sheboygan 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 5.
What growing zone is Sheboygan?
Sheboygan 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 53081. See growing zones in Wisconsin.
More: all Wisconsin frost dates · Wisconsin growing zones · UV index today in Sheboygan · frost vs. freeze