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Will it freeze in Sturgis in the next 7 nights?
No overnight lows at or below 32°F are forecast in Sturgis during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 35°F. Frost possible.
NWS forecast period: Thu, Nov 5, 6:00 PM MST to Fri, Nov 6, 6:00 AM MST.
1 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 35°F Frost possible · Partly Cloudy
- Fri, Nov 6 38°F Above 36°F · Mostly Clear
- Sat, Nov 7 39°F Above 36°F · Mostly Clear
- Sun, Nov 8 45°F Above 36°F · Mostly Clear
- Mon, Nov 9 39°F Above 36°F · Partly Cloudy
- Tue, Nov 10 43°F Above 36°F · Mostly Clear
- Wed, Nov 11 43°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 Sturgis
The median first fall hard-freeze date (28°F) is October 13, from NOAA’s 1991–2020 Climate Normals at Ft Meade. 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 6 · May 19 · May 31 | Sep 11 · Sep 24 · Oct 6 | 127 days |
| 32°F freeze | Apr 26 · May 8 · May 21 | Sep 19 · Oct 3 · Oct 17 | 147 days |
| 28°F hard freeze | Apr 13 · Apr 28 · May 11 | Sep 27 · Oct 13 · Oct 27 | 167 days |
Average high temperature by month
1991–2020 normals at Ft Meade
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 Sturgis, SD come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Ft Meade (station USC00393069, elevation 3,308 ft), 1.1 mi from Sturgis. 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 Sturgis
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Spearfish, SD | 17 mi | May 12 | Oct 2 |
| Belle Fourche, SD | 25 mi | May 10 | Sep 30 |
| Rapid City, SD | 27 mi | May 3 | Oct 8 |
| Box Elder, SD | 29 mi | May 12 | Oct 1 |
| Gillette, WY | 99 mi | May 15 | Oct 1 |
| Douglas, WY | 149 mi | May 19 | Sep 23 |
| Pierre, SD | 157 mi | May 6 | Oct 3 |
| Alliance, NE | 163 mi | May 11 | Oct 3 |
| Torrington, WY | 166 mi | May 11 | Sep 29 |
| Dickinson, ND | 175 mi | May 20 | Sep 22 |
Frequently asked questions
When is the last frost in Sturgis?
On average, the last spring frost (32°F) in Sturgis is around May 8. In about 1 year in 10 it comes after May 21, and in 9 years in 10 it comes after April 26.
When is the first frost in Sturgis?
The first fall frost (32°F) usually arrives around October 3. There’s a 10% chance of a freeze by September 19 and a 90% chance by October 17.
Can it frost in Sturgis 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 19.
What growing zone is Sturgis?
Sturgis is in USDA Plant Hardiness Zone 5a (average annual extreme minimum temperature −20 to −15°F), based on the 2023 USDA map for ZIP code 57793. See growing zones in South Dakota.
More: all South Dakota frost dates · South Dakota growing zones · frost vs. freeze