Olmito, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Olmito, a community in Cameron County, Texas.
This Afternoon
96°F
Mostly Sunny
Mostly sunny, with a high near 96. Heat index values as high as 108. East northeast wind around 13 mph, with gusts as high as 21 mph.
7-day forecast for Olmito
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 96°F | Mostly Sunny | 13 mph ENE | 12% |
| Tonight | 78°F | Mostly Clear | 0 to 13 mph ENE | 4% |
| Saturday | 96°F | Sunny | 1 to 13 mph NE | 13% |
| Saturday Night | 77°F | Mostly Clear | 1 to 13 mph ESE | 0% |
| Sunday | 97°F | Sunny then Slight Chance Showers And Thunderstorms | 1 to 13 mph ESE | 16% |
| Sunday Night | 78°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 13 mph SE | 16% |
| Monday | 98°F | Sunny then Slight Chance Showers And Thunderstorms | 1 to 13 mph ESE | 21% |
| Monday Night | 78°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 1 to 13 mph ESE | 21% |
| Tuesday | 97°F | Chance Showers And Thunderstorms | 0 to 13 mph E | 40% |
| Tuesday Night | 79°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 13 mph E | 40% |
| Wednesday | 96°F | Chance Showers And Thunderstorms | 1 to 14 mph ENE | 41% |
| Wednesday Night | 79°F | Chance Showers And Thunderstorms then Mostly Clear | 2 to 13 mph E | 41% |
| Thursday | 96°F | Chance Showers And Thunderstorms | 2 to 14 mph ENE | 41% |
| Thursday Night | 79°F | Chance Showers And Thunderstorms | 3 to 13 mph ENE | 41% |
Forecast source: National Weather Service (api.weather.gov) for Olmito (26.028, -97.540). Updated through the day.
Growing snapshot for Olmito
Last spring frost
Jan 9
First fall frost
Jan 4
Growing season
365 days
Hardiness zone
10a
More local growing data for Olmito: nearby ZIP 78575 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Wfo Brownsville, Tx (11.5 mi from Olmito). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.