Harrisburg, AR Weather & Growing Conditions
Today
88°F
Sunny
Sunny, with a high near 88. Northeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Sunny | 0 to 5 mph NE | 0% |
| Tonight | 68°F | Mostly Clear | 0 to 5 mph E | 0% |
| Wednesday | 91°F | Mostly Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 72°F | Mostly Clear | 0 to 5 mph SE | 1% |
| Thursday | 92°F | Mostly Sunny | 5 mph S | 12% |
| Thursday Night | 74°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSE | 16% |
| Friday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 41% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 34% |
| Saturday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 29% |
| Saturday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 29% |
| Sunday | 91°F | Mostly Sunny | 0 to 5 mph SSW | 11% |
| Sunday Night | 74°F | Mostly Clear | 0 to 5 mph S | 11% |
| Monday | 92°F | Sunny | 5 mph SSW | 7% |
| Monday Night | 75°F | Partly Cloudy | 5 mph S | 7% |
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 Aug 4, 2026.