Harper, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harper, a community in Kimble County, Texas.
Tonight
70°F
Partly Cloudy
Partly cloudy, with a low around 70. South southeast wind 5 to 10 mph.
7-day forecast for Harper
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Partly Cloudy | 5 to 10 mph SSE | 1% |
| Saturday | 92°F | Sunny | 5 to 10 mph SSE | 1% |
| Saturday Night | 69°F | Mostly Clear | 10 mph SSE | 2% |
| Sunday | 93°F | Mostly Sunny | 5 to 10 mph S | 6% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 5 mph SSE | 26% |
| Monday | 92°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 mph SE | 26% |
| Monday Night | 69°F | Chance Showers And Thunderstorms then Mostly Clear | 5 mph ESE | 25% |
| Tuesday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph ESE | 18% |
| Tuesday Night | 69°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph ESE | 18% |
| Wednesday | 91°F | Mostly Sunny | 5 to 10 mph E | 10% |
| Wednesday Night | 69°F | Partly Cloudy | 5 to 10 mph ESE | 6% |
| Thursday | 91°F | Mostly Sunny | 5 to 10 mph ESE | 5% |
| Thursday Night | 68°F | Partly Cloudy | 5 to 10 mph ESE | 7% |
| Friday | 90°F | Mostly Sunny | 5 to 10 mph ESE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Harper (30.266, -99.273). Updated through the day.
Growing snapshot for Harper
Last spring frost
Mar 15
First fall frost
Nov 15
Growing season
243 days
Hardiness zone
8a
More local growing data for Harper: nearby ZIP 78631 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Harper 3Ene, Tx (6.5 mi from Harper). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.