Seguin, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seguin, a city in Guadalupe County, Texas.
This Afternoon
97°F
Mostly Sunny
Mostly sunny, with a high near 97. Southeast wind around 5 mph.
7-day forecast for Seguin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 97°F | Mostly Sunny | 5 mph SE | 0% |
| Tonight | 73°F | Partly Cloudy | 0 to 10 mph SSE | 0% |
| Sunday | 99°F | Mostly Sunny | 0 to 5 mph SSW | 0% |
| Sunday Night | 75°F | Partly Cloudy | 0 to 5 mph SSE | 2% |
| Monday | 99°F | Mostly Sunny | 0 to 5 mph SE | 6% |
| Monday Night | 75°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 15% |
| Tuesday | 99°F | Sunny | 0 to 10 mph ENE | 7% |
| Tuesday Night | 75°F | Partly Cloudy | 0 to 10 mph NE | 13% |
| Wednesday | 99°F | Mostly Sunny | 0 to 10 mph NE | 8% |
| Wednesday Night | 75°F | Partly Cloudy | 0 to 10 mph E | 6% |
| Thursday | 98°F | Mostly Sunny | 0 to 10 mph ENE | 3% |
| Thursday Night | 74°F | Partly Cloudy | 0 to 10 mph E | 3% |
| Friday | 98°F | Mostly Sunny | 0 to 10 mph ENE | 2% |
| Friday Night | 73°F | Partly Cloudy | 0 to 10 mph ESE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Seguin (29.590, -97.969). Updated through the day.
Growing snapshot for Seguin
Last spring frost
Mar 1
First fall frost
Nov 26
Growing season
273 days
Hardiness zone
9a
More local growing data for Seguin: nearby ZIP 78155 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Cibolo
Geronimo
Kingsbury
Lake Dunlap
Marion
McQueeney
New Berlin
New Braunfels
Santa Clara
Staples
Zuehl
Climate data from the nearest NOAA station, Austin San Antonio, Tx (12.7 mi from Seguin). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.