Sam Rayburn, TX Weather & Growing Conditions
Today
97°F
Sunny
Sunny, with a high near 97. Heat index values as high as 102. Southwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 97°F | Sunny | 0 to 5 mph SW | 12% |
| Tonight | 76°F | Mostly Clear | 0 to 5 mph S | 12% |
| Wednesday | 97°F | Sunny | 0 to 5 mph SW | 7% |
| Wednesday Night | 76°F | Mostly Clear | 0 to 5 mph S | 6% |
| Thursday | 96°F | Sunny | 0 to 5 mph S | 7% |
| Thursday Night | 74°F | Mostly Clear | 0 to 5 mph S | 7% |
| Friday | 95°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 20% |
| Friday Night | 74°F | Slight Chance Showers And Thunderstorms | 0 mph | 20% |
| Saturday | 95°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph E | 18% |
| Saturday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 18% |
| Sunday | 93°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 24% |
| Sunday Night | 75°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 24% |
| Monday | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SE | 34% |
| Monday Night | 75°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 34% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sam Rayburn, TX
Last spring frost
Feb 24
First fall frost
Dec 1
Growing season
280 days
Hardiness zone
9a
Explore more for Sam Rayburn, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Sam Rayburn Dam, Tx (6.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.