McAllen, TX Weather & Growing Conditions
Today
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 108. Southeast wind around 15 mph, with gusts as high as 26 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 15 mph SE | 1% |
| Tonight | 81°F | Mostly Clear | 8 to 15 mph SE | 2% |
| Wednesday | 100°F | Mostly Sunny | 8 to 13 mph SE | 2% |
| Wednesday Night | 81°F | Mostly Clear | 7 to 13 mph SE | 0% |
| Thursday | 101°F | Sunny | 7 to 14 mph SE | 7% |
| Thursday Night | 80°F | Mostly Clear | 6 to 14 mph SE | 7% |
| Friday | 100°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 13 mph SE | 15% |
| Friday Night | 79°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 3 to 13 mph SE | 15% |
| Saturday | 99°F | Sunny | 2 to 12 mph ESE | 6% |
| Saturday Night | 79°F | Mostly Clear | 3 to 13 mph SE | 6% |
| Sunday | 99°F | Sunny | 2 to 12 mph SE | 7% |
| Sunday Night | 80°F | Mostly Clear | 6 to 13 mph SE | 7% |
| Monday | 100°F | Sunny | 6 to 14 mph SE | 2% |
| Monday Night | 81°F | Mostly Clear | 12 to 15 mph SE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for McAllen, TX
Last spring frost
Jan 9
First fall frost
Jan 1
Growing season
365 days
Hardiness zone
10a
Explore more for McAllen, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Mcallen, Tx (1.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.