Portland, TX Weather & Growing Conditions
Today
89°F
Slight Chance Showers And Thunderstorms then Sunny
A slight chance of rain showers before 10am, then a slight chance of showers and thunderstorms between 10am and 11am. Sunny, with a high near 89. Heat index values as high as 105. East northeast wind 5 to 14 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Slight Chance Showers And Thunderstorms then Sunny | 5 to 14 mph ENE | 16% |
| Tonight | 82°F | Mostly Clear | 6 to 14 mph SSE | 10% |
| Sunday | 90°F | Sunny | 5 to 13 mph ENE | 7% |
| Sunday Night | 83°F | Partly Cloudy | 7 to 14 mph SE | 5% |
| Monday | 90°F | Chance Showers And Thunderstorms | 5 to 13 mph SE | 26% |
| Monday Night | 83°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 to 13 mph ESE | 16% |
| Tuesday | 90°F | Slight Chance Showers And Thunderstorms | 5 to 14 mph E | 18% |
| Tuesday Night | 83°F | Mostly Clear | 5 to 14 mph ESE | 13% |
| Wednesday | 90°F | Slight Chance Showers And Thunderstorms | 6 to 15 mph ENE | 17% |
| Wednesday Night | 83°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 7 to 15 mph E | 16% |
| Thursday | 89°F | Chance Showers And Thunderstorms | 9 to 17 mph ENE | 29% |
| Thursday Night | 82°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 10 to 17 mph E | 20% |
| Friday | 89°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 12 to 16 mph ENE | 20% |
| Friday Night | 81°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 10 to 16 mph E | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Portland, TX
Last spring frost
Jan 14
First fall frost
Jan 8
Growing season
365 days
Hardiness zone
10a
Explore more for Portland, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Corpus Christi Nas, Tx (14 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.