Los Fresnos, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Los Fresnos, a city in Cameron County, Texas.
Today
98°F
Sunny
Sunny, with a high near 98. Heat index values as high as 110. South southeast wind 13 to 18 mph, with gusts as high as 28 mph.
7-day forecast for Los Fresnos
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Sunny | 13 to 18 mph SSE | 2% |
| Tonight | 81°F | Mostly Clear | 9 to 18 mph SE | 1% |
| Wednesday | 98°F | Mostly Sunny | 9 to 16 mph SE | 3% |
| Wednesday Night | 80°F | Mostly Clear | 7 to 16 mph SE | 1% |
| Thursday | 99°F | Sunny | 7 to 16 mph SE | 12% |
| Thursday Night | 80°F | Mostly Clear | 6 to 16 mph SE | 12% |
| Friday | 97°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 14 mph SE | 19% |
| Friday Night | 78°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 2 to 15 mph SE | 19% |
| Saturday | 96°F | Sunny | 2 to 14 mph ESE | 14% |
| Saturday Night | 79°F | Mostly Clear | 3 to 14 mph SE | 14% |
| Sunday | 97°F | Sunny then Slight Chance Showers And Thunderstorms | 2 to 14 mph SE | 15% |
| Sunday Night | 79°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 6 to 14 mph SE | 15% |
| Monday | 98°F | Sunny | 6 to 17 mph SSE | 6% |
| Monday Night | 80°F | Mostly Clear | 10 to 17 mph SSE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Los Fresnos (26.074, -97.488). Updated through the day.
Growing snapshot for Los Fresnos
Last spring frost
Jan 9
First fall frost
Jan 4
Growing season
365 days
Hardiness zone
10a
More local growing data for Los Fresnos: nearby ZIP 78575 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Arroyo Colorado Estates
Arroyo Gardens
Bayview
Bixby
Bluetown
Brownsville
Cameron Park
Chula Vista
Combes
Del Mar Heights
El Camino Angosto
Encantada-Ranchito-El Calaboz
Green Valley Farms
Harlingen
Iglesia Antigua
Indian Lake
Juarez
La Feria
La Feria North
La Paloma
La Tina Ranch
Lago
Laguna Heights
Laguna Vista
Las Palmas II
Lasana
Laureles
Los Indios
Lozano
Olmito
Climate data from the nearest NOAA station, Wfo Brownsville, Tx (11.5 mi from Los Fresnos). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.