Sebastian, TX Weather & Growing Conditions
Today
99°F
Sunny
Sunny, with a high near 99. Heat index values as high as 110. South southeast wind 9 to 17 mph, with gusts as high as 26 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 99°F | Sunny | 9 to 17 mph SSE | 2% |
| Tonight | 78°F | Mostly Clear | 8 to 16 mph SE | 1% |
| Wednesday | 99°F | Mostly Sunny | 8 to 15 mph SE | 2% |
| Wednesday Night | 78°F | Mostly Clear | 6 to 15 mph SE | 0% |
| Thursday | 100°F | Sunny | 6 to 15 mph SE | 12% |
| Thursday Night | 77°F | Mostly Clear | 5 to 15 mph SE | 12% |
| Friday | 98°F | Sunny then Slight Chance Showers And Thunderstorms | 3 to 14 mph SE | 19% |
| Friday Night | 76°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 1 to 14 mph SE | 19% |
| Saturday | 97°F | Sunny | 1 to 13 mph ESE | 10% |
| Saturday Night | 76°F | Mostly Clear | 2 to 13 mph SE | 10% |
| Sunday | 97°F | Sunny | 1 to 13 mph SE | 13% |
| Sunday Night | 77°F | Mostly Clear | 5 to 13 mph SE | 13% |
| Monday | 98°F | Sunny | 5 to 16 mph SSE | 4% |
| Monday Night | 78°F | Mostly Clear | 9 to 16 mph SE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sebastian, TX
Last spring frost
Jan 10
First fall frost
Dec 27
Growing season
355 days
Hardiness zone
10a
Explore more for Sebastian, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Santa Rosa 3 Wnw, Tx (6.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.