Round Top, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Round Top, a town in Fayette County, Texas.
Today
99°F
Sunny
Sunny, with a high near 99. Heat index values as high as 104. South wind 0 to 5 mph.
7-day forecast for Round Top
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 99°F | Sunny | 0 to 5 mph S | 2% |
| Tonight | 77°F | Mostly Clear | 0 to 5 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 | 8% |
| Thursday Night | 76°F | Mostly Clear | 0 to 10 mph SSE | 8% |
| Friday | 97°F | Mostly Sunny | 0 to 5 mph SSE | 14% |
| Friday Night | 76°F | Mostly Clear | 0 to 5 mph SSE | 12% |
| Saturday | 96°F | Sunny | 0 to 5 mph SSE | 9% |
| Saturday Night | 76°F | Mostly Clear | 0 to 5 mph SSE | 9% |
| Sunday | 96°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 S | 9% |
| Monday Night | 75°F | Partly Cloudy | 0 to 10 mph S | 9% |
Forecast source: National Weather Service (api.weather.gov) for Round Top (30.064, -96.696). Updated through the day.
Growing snapshot for Round Top
Last spring frost
Mar 4
First fall frost
Nov 25
Growing season
267 days
Hardiness zone
9a
More local growing data for Round Top: nearby ZIP 78954 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, La Grange, Tx (13.7 mi from Round Top). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.