Flor del Rio, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Flor del Rio, a community in Starr County, Texas.
This Afternoon
102°F
Sunny
Sunny, with a high near 102. Heat index values as high as 109. East southeast wind around 5 mph.
7-day forecast for Flor del Rio
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 102°F | Sunny | 5 mph ESE | 1% |
| Tonight | 77°F | Mostly Clear | 2 to 7 mph ESE | 1% |
| Sunday | 102°F | Mostly Sunny | 3 mph ESE | 0% |
| Sunday Night | 78°F | Partly Cloudy | 1 to 7 mph ESE | 0% |
| Monday | 102°F | Sunny | 1 to 7 mph ESE | 11% |
| Monday Night | 78°F | Mostly Clear | 1 to 8 mph ESE | 11% |
| Tuesday | 100°F | Sunny then Chance Showers And Thunderstorms | 1 to 8 mph E | 27% |
| Tuesday Night | 78°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 8 mph E | 27% |
| Wednesday | 99°F | Chance Showers And Thunderstorms | 0 to 7 mph ENE | 43% |
| Wednesday Night | 77°F | Chance Showers And Thunderstorms | 0 to 6 mph NE | 43% |
| Thursday | 98°F | Chance Rain Showers | 0 to 6 mph ENE | 48% |
| Thursday Night | 76°F | Chance Showers And Thunderstorms | 0 to 6 mph ENE | 48% |
| Friday | 99°F | Chance Rain Showers | 1 to 6 mph ENE | 30% |
| Friday Night | 76°F | Chance Showers And Thunderstorms | 0 to 6 mph E | 30% |
Forecast source: National Weather Service (api.weather.gov) for Flor del Rio (26.401, -98.901). Updated through the day.
Growing snapshot for Flor del Rio
Last spring frost
Jan 9
First fall frost
Jan 1
Growing season
363 days
Hardiness zone
9b
More local growing data for Flor del Rio: nearby ZIP 78584 weather · frost dates · planting calendar · Texas frost dates
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Falcon Heights
Climate data from the nearest NOAA station, Falcon Dam, Tx (9 mi from Flor del Rio). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.