Portland, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Portland, a city in Chicot County, Arkansas.
This Afternoon
80°F
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy. High near 80, with temperatures falling to around 75 in the afternoon. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
7-day forecast for Portland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Showers And Thunderstorms | 10 to 15 mph S | 97% |
| Tonight | 53°F | Showers And Thunderstorms then Mostly Cloudy | 0 to 10 mph WSW | 92% |
| Wednesday | 73°F | Sunny | 0 to 5 mph WNW | 0% |
| Wednesday Night | 44°F | Partly Cloudy then Patchy Fog | 0 mph | 0% |
| Thursday | 75°F | Mostly Sunny | 0 mph | 0% |
| Thursday Night | 47°F | Partly Cloudy | 0 mph | 1% |
| Friday | 73°F | Mostly Sunny | 5 mph N | 0% |
| Friday Night | 41°F | Mostly Clear | 5 mph NNE | 0% |
| Saturday | 66°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 37°F | Partly Cloudy | 0 to 5 mph N | 3% |
| Sunday | 66°F | Mostly Sunny | 0 to 5 mph N | 6% |
| Sunday Night | 36°F | Mostly Clear | 0 to 5 mph NNW | 1% |
| Monday | 70°F | Sunny | 0 to 5 mph WNW | 0% |
| Monday Night | 37°F | Mostly Clear | 0 mph | 1% |
Forecast source: National Weather Service (api.weather.gov) for Portland (33.238, -91.511). Updated through the day.
Growing snapshot for Portland
Last spring frost
Mar 14
First fall frost
Nov 10
Growing season
241 days
Hardiness zone
8b
More local growing data for Portland: nearby ZIP 71663 weather · frost dates · planting calendar · Arkansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Portland, Ar (4.7 mi from Portland). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.