Black Rock, AR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Black Rock, a city in Lawrence County, Arkansas.
Tonight
73°F
Clear
Clear, with a low around 73. West southwest wind 0 to 5 mph.
7-day forecast for Black Rock
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 73°F | Clear | 0 to 5 mph WSW | 0% |
| Saturday | 99°F | Sunny | 0 to 10 mph SW | 1% |
| Saturday Night | 73°F | Mostly Clear | 5 mph SW | 0% |
| Sunday | 99°F | Sunny | 0 to 10 mph SW | 0% |
| Sunday Night | 73°F | Partly Cloudy | 5 mph NW | 4% |
| Monday | 93°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph N | 21% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph N | 27% |
| Tuesday | 85°F | Mostly Sunny | 10 mph N | 10% |
| Tuesday Night | 61°F | Partly Cloudy | 10 to 15 mph NNE | 6% |
| Wednesday | 82°F | Sunny | 10 mph NNE | 3% |
| Wednesday Night | 60°F | Mostly Clear | 5 to 10 mph NNE | 2% |
| Thursday | 82°F | Sunny | 5 to 10 mph NNE | 1% |
| Thursday Night | 61°F | Mostly Clear | 5 mph NNE | 1% |
| Friday | 83°F | Mostly Sunny | 5 to 10 mph NNE | 4% |
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 Sep 19, 2026.