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Will it freeze in Mount Pleasant in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Fri, Nov 6: 32°F (Fri, Nov 6, 6:00 PM EST to Sat, Nov 7, 6:00 AM EST).
Tonight: forecast low 36°F. Frost possible.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
6 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 36°F Frost possible · Slight Chance Rain Showers then Mostly Cloudy
- Fri, Nov 6 32°F Freeze · Mostly Cloudy
- Sat, Nov 7 30°F Freeze · Mostly Clear
- Sun, Nov 8 33°F Frost possible · Mostly Clear
- Mon, Nov 9 40°F Above 36°F · Mostly Clear
- Tue, Nov 10 34°F Frost possible · Partly Cloudy
- Wed, Nov 11 32°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 Mount Pleasant
The median first fall hard-freeze date (28°F) is November 3, from NOAA’s 1991–2020 Climate Normals at Central Michigan University. 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 28 · May 10 · May 24 | Sep 25 · Oct 7 · Oct 22 | 149 days |
| 32°F freeze | Apr 17 · Apr 30 · May 16 | Oct 5 · Oct 20 · Nov 3 | 171 days |
| 28°F hard freeze | Apr 4 · Apr 19 · May 4 | Oct 20 · Nov 3 · Nov 17 | 196 days |
Average high temperature by month
1991–2020 normals at Central Michigan University
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 Mount Pleasant, MI come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Central Michigan University (station USC00205662, elevation 795 ft), 0.8 mi from Mount Pleasant. 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 Mount Pleasant
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| St. Louis, MI | 16 mi | May 1 | Oct 13 |
| Alma, MI | 16 mi | May 1 | Oct 13 |
| Midland, MI | 27 mi | Apr 29 | Oct 16 |
| Big Rapids, MI | 36 mi | May 13 | Oct 2 |
| Greenville, MI | 37 mi | May 18 | Sep 28 |
| Belding, MI | 42 mi | May 18 | Sep 28 |
| St. Johns, MI | 43 mi | Apr 28 | Oct 24 |
| Saginaw, MI | 43 mi | Apr 29 | Oct 21 |
| Bay City, MI | 44 mi | Apr 27 | Oct 20 |
| Ionia, MI | 45 mi | May 3 | Oct 12 |
Frequently asked questions
When is the last frost in Mount Pleasant?
On average, the last spring frost (32°F) in Mount Pleasant is around April 30. In about 1 year in 10 it comes after May 16, and in 9 years in 10 it comes after April 17.
When is the first frost in Mount Pleasant?
The first fall frost (32°F) usually arrives around October 20. There’s a 10% chance of a freeze by October 5 and a 90% chance by November 3.
Can it frost in Mount Pleasant 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 10.
What growing zone is Mount Pleasant?
Mount Pleasant 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 48859. See growing zones in Michigan.
More: all Michigan frost dates · Michigan growing zones · frost vs. freeze