Harrisburg, AR Weather & Growing Conditions
Tonight
56°F
Mostly Cloudy
Mostly cloudy, with a low around 56. West southwest wind around 5 mph. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Mostly Cloudy | 5 mph WSW | 10% |
| Wednesday | 69°F | Mostly Sunny | 5 mph W | 0% |
| Wednesday Night | 47°F | Mostly Clear | 0 mph | 0% |
| Thursday | 71°F | Mostly Sunny | 0 to 5 mph SSW | 0% |
| Thursday Night | 50°F | Partly Cloudy | 0 to 5 mph W | 2% |
| Friday | 66°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Friday Night | 44°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 61°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 40°F | Partly Cloudy | 0 mph | 2% |
| Sunday | 63°F | Sunny | 0 to 5 mph NW | 6% |
| Sunday Night | 39°F | Mostly Clear | 0 to 5 mph WNW | 2% |
| Monday | 67°F | Sunny | 0 to 5 mph WSW | 0% |
| Monday Night | 41°F | Mostly Clear | 0 to 5 mph SW | 1% |
| Tuesday | 71°F | Sunny | 0 to 5 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harrisburg, AR
Last spring frost
Mar 28
First fall frost
Nov 7
Growing season
224 days
Hardiness zone
8a
Explore more for Harrisburg, AR: full frost dates · planting calendar · Arkansas frost dates
Climate data from the nearest NOAA station, Poinsett Sp, Ar (2.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.