Black Rock, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Black Rock, a city in Lawrence County, Arkansas.
Overnight
67°F
Mostly Clear
Mostly clear, with a low around 67. North wind around 0 mph.
7-day forecast for Black Rock
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 67°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 90°F | Sunny | 0 to 5 mph ENE | 0% |
| Tuesday Night | 69°F | Mostly Clear | 0 to 5 mph E | 0% |
| Wednesday | 92°F | Sunny | 0 to 5 mph SSE | 0% |
| Wednesday Night | 73°F | Mostly Clear | 5 mph SSE | 3% |
| Thursday | 94°F | Slight Chance Showers And Thunderstorms | 5 mph S | 24% |
| Thursday Night | 74°F | Partly Cloudy then Chance Showers And Thunderstorms | 5 mph S | 26% |
| Friday | 92°F | Showers And Thunderstorms Likely | 5 mph S | 56% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 49% |
| Saturday | 92°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 32% |
| Saturday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph S | 27% |
| Sunday | 93°F | Sunny | 5 mph SSW | 6% |
| Sunday Night | 74°F | Mostly Clear | 5 mph S | 5% |
| Monday | 94°F | Sunny | 5 to 10 mph SSW | 5% |
Forecast source: National Weather Service (api.weather.gov) for Black Rock (36.106, -91.107). Updated through the day.
Growing snapshot for Black Rock
Last spring frost
Mar 27
First fall frost
Nov 5
Growing season
224 days
Hardiness zone
7b
More local growing data for Black Rock: nearby ZIP 72457 weather · frost dates · planting calendar · Arkansas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Alicia 2Nne, Ar (10.7 mi from Black Rock). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.