Round Top, TX Weather & Growing Conditions
Today
98°F
Sunny
Sunny, with a high near 98. Heat index values as high as 103. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Sunny | 5 mph S | 2% |
| Tonight | 76°F | Mostly Clear | 0 to 10 mph S | 2% |
| Wednesday | 99°F | Mostly Sunny | 0 to 5 mph S | 3% |
| Wednesday Night | 76°F | Mostly Clear | 0 to 10 mph S | 3% |
| Thursday | 98°F | Sunny | 0 to 5 mph S | 9% |
| Thursday Night | 76°F | Mostly Clear | 0 to 10 mph SSE | 9% |
| Friday | 96°F | Mostly Sunny | 0 to 5 mph SSE | 14% |
| Friday Night | 76°F | Mostly Clear | 0 to 5 mph SSE | 13% |
| Saturday | 96°F | Sunny | 0 to 5 mph SSE | 9% |
| Saturday Night | 76°F | Mostly Clear | 0 to 5 mph SSE | 9% |
| Sunday | 95°F | Sunny | 0 to 10 mph SSE | 11% |
| Sunday Night | 75°F | Mostly Clear | 0 to 10 mph SSE | 11% |
| Monday | 96°F | Mostly Sunny | 0 to 10 mph SSE | 9% |
| Monday Night | 75°F | Partly Cloudy | 0 to 10 mph S | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Round Top, TX
Last spring frost
Mar 4
First fall frost
Nov 25
Growing season
267 days
Hardiness zone
9a
Explore more for Round Top, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, La Grange, Tx (13.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.