Portland, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Portland, a city in Chicot County, Arkansas.
This Afternoon
98°F
Sunny
Sunny, with a high near 98. Heat index values as high as 101. Southeast wind around 0 mph.
7-day forecast for Portland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Sunny | 0 mph | 0% |
| Tonight | 71°F | Clear | 0 mph | 0% |
| Saturday | 99°F | Sunny | 0 mph | 1% |
| Saturday Night | 72°F | Clear | 0 to 5 mph SSW | 0% |
| Sunday | 99°F | Sunny | 0 to 5 mph WSW | 0% |
| Sunday Night | 72°F | Partly Cloudy | 0 mph | 1% |
| Monday | 98°F | Mostly Sunny | 0 to 5 mph W | 7% |
| Monday Night | 71°F | Partly Cloudy | 0 mph | 10% |
| Tuesday | 95°F | Mostly Sunny | 0 to 5 mph N | 13% |
| Tuesday Night | 68°F | Partly Cloudy | 5 mph NNE | 13% |
| Wednesday | 92°F | Sunny | 10 mph NNE | 4% |
| Wednesday Night | 66°F | Mostly Clear | 5 to 10 mph NNE | 4% |
| Thursday | 90°F | Sunny | 5 to 10 mph NNE | 4% |
| Thursday Night | 65°F | Mostly Clear | 5 to 10 mph NNE | 4% |
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 Sep 19, 2026.