Portland, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Portland, a city in San Patricio County, Texas.
This Afternoon
84°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Partly sunny. High near 84, with temperatures falling to around 78 in the afternoon. Heat index values as high as 91. Northwest wind around 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Portland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 84°F | Chance Showers And Thunderstorms | 9 mph NW | 52% |
| Tonight | 60°F | Partly Cloudy | 7 to 10 mph NNE | 7% |
| Wednesday | 78°F | Sunny | 5 to 10 mph NE | 0% |
| Wednesday Night | 64°F | Mostly Clear | 6 mph E | 6% |
| Thursday | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 8 mph ESE | 21% |
| Thursday Night | 65°F | Showers And Thunderstorms Likely | 3 to 16 mph NE | 73% |
| Friday | 78°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 8 to 18 mph N | 21% |
| Friday Night | 61°F | Partly Cloudy | 9 to 16 mph N | 10% |
| Saturday | 73°F | Chance Rain Showers | 13 to 16 mph NNE | 38% |
| Saturday Night | 59°F | Slight Chance Rain Showers | 13 to 20 mph N | 20% |
| Sunday | 71°F | Slight Chance Rain Showers then Mostly Sunny | 12 to 20 mph N | 17% |
| Sunday Night | 58°F | Partly Cloudy | 8 to 12 mph N | 8% |
| Monday | 72°F | Mostly Sunny | 7 to 12 mph NE | 5% |
| Monday Night | 58°F | Partly Cloudy | 5 to 8 mph ENE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Portland (27.889, -97.332). Updated through the day.
Growing snapshot for Portland
Last spring frost
Jan 14
First fall frost
Jan 8
Growing season
365 days
Hardiness zone
10a
More local growing data for Portland: nearby ZIP 78374 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Aransas Pass
Del Sol
Edgewater Estates
Edroy
Falman
Gregory
Ingleside
Ingleside on the Bay
La Paloma Addition
Lakeshore Gardens-Hidden Acres
Lakeside
Loma Linda
Mathis
Morgan Farm
Odem
Paisano Park
Rancho Chico
San Patricio
Sinton
St. Paul
Taft
Taft Southwest
Tradewinds
Climate data from the nearest NOAA station, Corpus Christi Nas, Tx (14 mi from Portland). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.