Weslaco, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Weslaco, a city in Hidalgo County, Texas.
Tonight
77°F
Mostly Clear
Mostly clear, with a low around 77. East wind around 3 mph.
7-day forecast for Weslaco
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 77°F | Mostly Clear | 3 mph E | 0% |
| Saturday | 99°F | Sunny | 1 to 10 mph ENE | 12% |
| Saturday Night | 77°F | Mostly Clear | 2 to 12 mph ESE | 0% |
| Sunday | 99°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 10 mph ESE | 15% |
| Sunday Night | 78°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 13 mph SE | 15% |
| Monday | 99°F | Sunny then Slight Chance Showers And Thunderstorms | 2 to 12 mph ESE | 23% |
| Monday Night | 78°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 1 to 13 mph ESE | 23% |
| Tuesday | 98°F | Sunny then Chance Showers And Thunderstorms | 1 to 12 mph E | 43% |
| Tuesday Night | 78°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 12 mph ENE | 43% |
| Wednesday | 97°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 13 mph ENE | 44% |
| Wednesday Night | 78°F | Chance Showers And Thunderstorms then Mostly Clear | 1 to 13 mph ENE | 44% |
| Thursday | 96°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 3 to 12 mph NE | 45% |
| Thursday Night | 77°F | Chance Showers And Thunderstorms | 2 to 13 mph NE | 45% |
| Friday | 96°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 12 mph NNE | 41% |
Forecast source: National Weather Service (api.weather.gov) for Weslaco (26.161, -97.988). Updated through the day.
Growing snapshot for Weslaco
Last spring frost
Jan 8
First fall frost
Dec 31
Growing season
365 days
Hardiness zone
10a
More local growing data for Weslaco: nearby ZIP 78599 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Weslaco, Tx (2.9 mi from Weslaco). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.