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Will it freeze in Eagle Mountain in the next 7 nights?
No overnight lows at or below 32°F are forecast in Eagle Mountain 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.
3 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 33°F Frost possible · Mostly Clear
- Sat, Nov 7 36°F Frost possible · Mostly Clear
- Sun, Nov 8 40°F Above 36°F · Mostly Clear
- Mon, Nov 9 41°F Above 36°F · Partly Cloudy
- Tue, Nov 10 39°F Above 36°F · Partly Cloudy
- Wed, Nov 11 40°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 Eagle Mountain
The median first fall hard-freeze date (28°F) is September 26, from NOAA’s 1991–2020 Climate Normals at Fairfield. 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 | rare in most years | rare in most years | 76 days |
| 32°F freeze | May 18 · Jun 2 · Jun 24 | Sep 1 · Sep 16 · Sep 29 | 103 days |
| 28°F hard freeze | May 2 · May 19 · Jun 10 | Sep 10 · Sep 26 · Oct 7 | 127 days |
Average high temperature by month
1991–2020 normals at Fairfield
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 Eagle Mountain, UT come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Fairfield (station USC00422696, elevation 4,880 ft), 5.5 mi from Eagle Mountain. 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 Eagle Mountain
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Saratoga Springs, UT | 5.6 mi | Apr 30 | Oct 9 |
| Lehi, UT | 11 mi | Apr 30 | Oct 9 |
| Bluffdale, UT | 12 mi | Apr 18 | Oct 22 |
| American Fork, UT | 12 mi | Apr 17 | Oct 25 |
| Herriman, UT | 12 mi | Apr 18 | Oct 22 |
| Vineyard, UT | 14 mi | Apr 19 | Oct 19 |
| Highland, UT | 14 mi | May 3 | Oct 12 |
| Riverton, UT | 14 mi | Apr 18 | Oct 22 |
| Pleasant Grove, UT | 15 mi | Apr 17 | Oct 25 |
| Draper, UT | 15 mi | Apr 18 | Oct 22 |
Frequently asked questions
When is the last frost in Eagle Mountain?
On average, the last spring frost (32°F) in Eagle Mountain is around June 2. In about 1 year in 10 it comes after June 24, and in 9 years in 10 it comes after May 18.
When is the first frost in Eagle Mountain?
The first fall frost (32°F) usually arrives around September 16. There’s a 10% chance of a freeze by September 1 and a 90% chance by September 29.
What growing zone is Eagle Mountain?
Eagle Mountain is in USDA Plant Hardiness Zone 6b (average annual extreme minimum temperature −5 to 0°F), based on the 2023 USDA map for ZIP code 84005. See growing zones in Utah.
More: all Utah frost dates · Utah growing zones · UV index today in Eagle Mountain · frost vs. freeze