Los Fresnos, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Los Fresnos, a community in Webb County, Texas.
This Afternoon
99°F
Mostly Sunny
Mostly sunny, with a high near 99. Heat index values as high as 104. East southeast wind 5 to 8 mph.
7-day forecast for Los Fresnos
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 99°F | Mostly Sunny | 5 to 8 mph ESE | 0% |
| Tonight | 75°F | Partly Cloudy | 7 to 14 mph SE | 1% |
| Sunday | 100°F | Mostly Sunny | 2 to 7 mph SE | 0% |
| Sunday Night | 76°F | Partly Cloudy | 7 to 13 mph SE | 0% |
| Monday | 99°F | Sunny | 3 to 10 mph SE | 4% |
| Monday Night | 75°F | Mostly Clear | 6 to 15 mph ESE | 4% |
| Tuesday | 99°F | Sunny | 3 to 13 mph ESE | 11% |
| Tuesday Night | 75°F | Mostly Clear | 3 to 15 mph ESE | 11% |
| Wednesday | 98°F | Sunny then Slight Chance Showers And Thunderstorms | 3 to 14 mph E | 20% |
| Wednesday Night | 76°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 15 mph ESE | 20% |
| Thursday | 96°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 14 mph E | 39% |
| Thursday Night | 75°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 14 mph ESE | 39% |
| Friday | 97°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 12 mph E | 23% |
| Friday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 13 mph ESE | 23% |
Forecast source: National Weather Service (api.weather.gov) for Los Fresnos (27.617, -99.208). Updated through the day.
Growing snapshot for Los Fresnos
Last spring frost
Jan 20
First fall frost
Dec 25
Growing season
344 days
Hardiness zone
9b
More local growing data for Los Fresnos: nearby ZIP 78043 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Aguilares
Bonanza Hills
Botines
Bruni
Colorado Acres
El Cenizo
Encinal
Four Points
Hillside Acres
La Coma
La Moca Ranch
La Presa
Laredo
Laredo Ranchettes
Laredo Ranchettes West
Las Haciendas
Las Pilas
Los Altos
Los Arcos
Los Centenarios
Los Corralitos
Los Huisaches
Los Minerales
Los Nopalitos
Los Veteranos I
Los Veteranos II
Mirando City
Oilton
Pueblo East
Pueblo Nuevo
Climate data from the nearest NOAA station, Laredo Afb, Tx (10.3 mi from Los Fresnos). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.