Seguin, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seguin, a city in Guadalupe County, Texas.
Tonight
52°F
Mostly Clear
Mostly clear, with a low around 52. North wind around 5 mph.
7-day forecast for Seguin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear | 5 mph N | 0% |
| Wednesday | 75°F | Sunny | 0 to 5 mph NE | 0% |
| Wednesday Night | 52°F | Mostly Clear | 0 to 5 mph ESE | 0% |
| Thursday | 79°F | Mostly Sunny | 0 to 5 mph SSE | 4% |
| Thursday Night | 58°F | Partly Cloudy | 0 to 15 mph NNE | 11% |
| Friday | 73°F | Sunny | 10 to 15 mph N | 0% |
| Friday Night | 52°F | Partly Cloudy | 5 to 10 mph NNE | 3% |
| Saturday | 69°F | Slight Chance Rain Showers | 10 mph NNE | 17% |
| Saturday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 10 mph N | 15% |
| Sunday | 70°F | Mostly Sunny | 5 to 10 mph NNE | 10% |
| Sunday Night | 48°F | Mostly Clear | 0 to 5 mph N | 8% |
| Monday | 71°F | Sunny | 0 to 5 mph ENE | 4% |
| Monday Night | 48°F | Mostly Clear | 0 to 5 mph ESE | 1% |
| Tuesday | 73°F | Mostly Sunny | 0 to 5 mph S | 4% |
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 Nov 4, 2026.