Portland, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Portland, a city in Chicot County, Arkansas.
Overnight
68°F
Patchy Fog
Patchy fog. Clear, with a low around 68. Wind around 0 mph.
7-day forecast for Portland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Patchy Fog | 0 mph | 0% |
| Tuesday | 94°F | Patchy Fog then Sunny | 0 to 5 mph NNE | 0% |
| Tuesday Night | 70°F | Mostly Clear | 0 to 5 mph ENE | 0% |
| Wednesday | 96°F | Sunny | 0 to 5 mph SSW | 5% |
| Wednesday Night | 72°F | Mostly Clear | 0 mph | 5% |
| Thursday | 96°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 16% |
| Thursday Night | 74°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph S | 16% |
| Friday | 95°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 18% |
| Friday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 18% |
| Saturday | 95°F | Sunny then Chance Showers And Thunderstorms | 0 mph | 26% |
| Saturday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 26% |
| Sunday | 96°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 19% |
| Sunday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 19% |
| Monday | 95°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 20% |
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 Aug 4, 2026.