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Will it freeze in Rhinelander in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Tonight: 29°F (Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST).
Tonight: forecast low 29°F. Freeze.
NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.
7 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 29°F Freeze · Chance Rain Showers then Mostly Cloudy
- Fri, Nov 6 22°F Hard freeze · Mostly Clear
- Sat, Nov 7 29°F Freeze · Partly Cloudy
- Sun, Nov 8 30°F Freeze · Partly Cloudy
- Mon, Nov 9 34°F Frost possible · Mostly Clear
- Tue, Nov 10 30°F Freeze · Partly Cloudy
- Wed, Nov 11 31°F Freeze · Mostly 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 Rhinelander
The median first fall hard-freeze date (28°F) is October 2, from NOAA’s 1991–2020 Climate Normals at Rhinelander Oneida 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 | May 23 · Jun 5 · Jun 21 | Aug 23 · Sep 9 · Sep 26 | 96 days |
| 32°F freeze | May 9 · May 26 · Jun 8 | Sep 5 · Sep 23 · Oct 7 | 120 days |
| 28°F hard freeze | Apr 28 · May 13 · May 29 | Sep 17 · Oct 2 · Oct 19 | 142 days |
Average high temperature by month
1991–2020 normals at Rhinelander Oneida 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 Rhinelander, WI come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Rhinelander Oneida Airport (station USW00004803, elevation 1,599 ft), 1.7 mi from Rhinelander. 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 Rhinelander
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Merrill, WI | 34 mi | May 11 | Sep 30 |
| Antigo, WI | 37 mi | May 14 | Sep 30 |
| Wausau, WI | 48 mi | May 6 | Oct 4 |
| Weston, WI | 52 mi | May 6 | Oct 4 |
| Rib Mountain, WI | 52 mi | May 6 | Oct 4 |
| Rothschild, WI | 53 mi | May 6 | Oct 4 |
| Kronenwetter, WI | 57 mi | May 6 | Oct 4 |
| Kingsford, MI | 65 mi | May 25 | Sep 24 |
| Iron Mountain, MI | 68 mi | May 25 | Sep 24 |
| Shawano, WI | 73 mi | May 9 | Oct 2 |
Frequently asked questions
When is the last frost in Rhinelander?
On average, the last spring frost (32°F) in Rhinelander is around May 26. In about 1 year in 10 it comes after June 8, and in 9 years in 10 it comes after May 9.
When is the first frost in Rhinelander?
The first fall frost (32°F) usually arrives around September 23. There’s a 10% chance of a freeze by September 5 and a 90% chance by October 7.
Can it frost in Rhinelander 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 June 5.
What growing zone is Rhinelander?
Rhinelander is in USDA Plant Hardiness Zone 4b (average annual extreme minimum temperature −25 to −20°F), based on the 2023 USDA map for ZIP code 54501. See growing zones in Wisconsin.
More: all Wisconsin frost dates · Wisconsin growing zones · frost vs. freeze