Alton, TX Weather & Growing Conditions
This Afternoon
92°F
Mostly Sunny
Mostly sunny. High near 92, with temperatures falling to around 87 in the afternoon. North northwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 92°F | Mostly Sunny | 10 mph NNW | 6% |
| Tonight | 66°F | Slight Chance Rain Showers then Partly Cloudy | 6 to 9 mph N | 16% |
| Wednesday | 85°F | Mostly Sunny | 7 mph NE | 1% |
| Wednesday Night | 68°F | Partly Cloudy | 3 to 7 mph E | 4% |
| Thursday | 92°F | Mostly Sunny | 3 to 8 mph SE | 7% |
| Thursday Night | 71°F | Showers And Thunderstorms Likely | 2 to 7 mph NNE | 74% |
| Friday | 82°F | Chance Showers And Thunderstorms then Partly Sunny | 7 to 13 mph N | 34% |
| Friday Night | 64°F | Partly Cloudy | 2 to 7 mph NNE | 14% |
| Saturday | 79°F | Chance Rain Showers | 7 to 10 mph N | 38% |
| Saturday Night | 61°F | Chance Rain Showers | 5 to 13 mph N | 33% |
| Sunday | 76°F | Slight Chance Rain Showers then Mostly Sunny | 7 to 14 mph N | 18% |
| Sunday Night | 57°F | Partly Cloudy | 2 to 6 mph N | 13% |
| Monday | 79°F | Mostly Sunny | 6 mph NE | 5% |
| Monday Night | 58°F | Partly Cloudy | 3 mph E | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Alton, TX
Last spring frost
Jan 23
First fall frost
Dec 28
Growing season
340 days
Hardiness zone
10a
Explore more for Alton, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, La Joya, Tx (2.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.