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Will it freeze in Seguin in the next 7 nights?
No overnight lows at or below 32°F are forecast in Seguin during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 58°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.
No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.
- Tonight 58°F Above 36°F · Partly Cloudy
- Fri, Nov 6 56°F Above 36°F · Partly Cloudy
- Sat, Nov 7 54°F Above 36°F · Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
- Sun, Nov 8 50°F Above 36°F · Chance Rain Showers
- Mon, Nov 9 50°F Above 36°F · Slight Chance Rain Showers
- Tue, Nov 10 52°F Above 36°F · Partly Cloudy
- Wed, Nov 11 54°F Above 36°F · 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 Seguin
The median first fall hard-freeze date (28°F) is December 11, from NOAA’s 1991–2020 Climate Normals at Austin San Antonio. 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 | Feb 23 · Mar 13 · Apr 3 | Oct 31 · Nov 15 · Dec 2 | 246 days |
| 32°F freeze | Feb 3 · Mar 1 · Mar 20 | Nov 8 · Nov 26 · Dec 20 | 273 days |
| 28°F hard freeze | Jan 11 · Feb 13 · Mar 10 | Nov 18 · Dec 11 · Jan 16 | 306 days |
Average high temperature by month
1991–2020 normals at Austin San Antonio
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 Seguin, TX come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Austin San Antonio (station USW00012971, elevation 633 ft), 8.6 mi from Seguin. 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 Seguin
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| New Braunfels, TX | 12 mi | Mar 8 | Nov 18 |
| Cibolo, TX | 15 mi | Feb 21 | Dec 5 |
| Schertz, TX | 17 mi | Feb 21 | Dec 5 |
| San Marcos, TX | 20 mi | Feb 28 | Nov 29 |
| Luling, TX | 21 mi | Mar 5 | Nov 23 |
| Universal City, TX | 21 mi | Feb 21 | Dec 5 |
| Selma, TX | 21 mi | Feb 21 | Dec 5 |
| Converse, TX | 21 mi | Feb 21 | Dec 5 |
| Live Oak, TX | 22 mi | Feb 21 | Dec 5 |
| Windcrest, TX | 25 mi | Feb 25 | Nov 28 |
Frequently asked questions
When is the last frost in Seguin?
On average, the last spring frost (32°F) in Seguin is around March 1. In about 1 year in 10 it comes after March 20, and in 9 years in 10 it comes after February 3.
When is the first frost in Seguin?
The first fall frost (32°F) usually arrives around November 26. There’s a 10% chance of a freeze by November 8 and a 90% chance by December 20.
Can it frost in Seguin 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 March 13.
What growing zone is Seguin?
Seguin is in USDA Plant Hardiness Zone 9a (average annual extreme minimum temperature 20 to 25°F), based on the 2023 USDA map for ZIP code 78155. See growing zones in Texas.
More: all Texas frost dates · Texas growing zones · UV index today in Seguin · frost vs. freeze