Weslaco, TX Weather & Growing Conditions
This Afternoon
98°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 4pm and 5pm. Sunny, with a high near 98. Heat index values as high as 106. East wind 3 to 10 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Slight Chance Showers And Thunderstorms | 3 to 10 mph E | 18% |
| Tonight | 76°F | Mostly Clear | 1 to 12 mph ESE | 4% |
| Sunday | 99°F | Mostly Sunny | 1 to 9 mph ESE | 8% |
| Sunday Night | 77°F | Partly Cloudy | 2 to 12 mph ESE | 1% |
| Monday | 98°F | Sunny then Chance Showers And Thunderstorms | 1 to 12 mph ESE | 34% |
| Monday Night | 77°F | Chance Showers And Thunderstorms then Clear | 1 to 12 mph ESE | 34% |
| Tuesday | 97°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 12 mph ENE | 44% |
| Tuesday Night | 77°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 12 mph ENE | 44% |
| Wednesday | 96°F | Chance Rain Showers then Chance Showers And Thunderstorms | 1 to 12 mph ENE | 45% |
| Wednesday Night | 78°F | Chance Showers And Thunderstorms then Mostly Clear | 1 to 12 mph ENE | 45% |
| Thursday | 96°F | Chance Rain Showers then Chance Showers And Thunderstorms | 3 to 10 mph NE | 51% |
| Thursday Night | 77°F | Chance Showers And Thunderstorms | 2 to 12 mph ENE | 51% |
| Friday | 95°F | Chance Rain Showers then Chance Showers And Thunderstorms | 3 to 12 mph NE | 37% |
| Friday Night | 76°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 12 mph ENE | 37% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Weslaco, TX
Last spring frost
Jan 8
First fall frost
Dec 31
Growing season
365 days
Hardiness zone
10a
Explore more for Weslaco, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Weslaco, Tx (5.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.