Newcastle, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Newcastle, a city in Young County, Texas.
This Afternoon
72°F
Sunny
Sunny. High near 72, with temperatures falling to around 69 in the afternoon. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
7-day forecast for Newcastle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Sunny | 10 to 15 mph NW | 0% |
| Tonight | 48°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Wednesday | 72°F | Mostly Sunny | 0 mph | 0% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 5 mph SSE | 0% |
| Thursday | 74°F | Sunny | 5 to 15 mph WSW | 1% |
| Thursday Night | 46°F | Mostly Clear | 0 to 10 mph NNW | 1% |
| Friday | 68°F | Sunny | 5 mph N | 0% |
| Friday Night | 45°F | Partly Cloudy | 0 to 5 mph NNE | 1% |
| Saturday | 67°F | Mostly Sunny | 0 to 5 mph N | 3% |
| Saturday Night | 44°F | Partly Cloudy | 0 mph | 4% |
| Sunday | 71°F | Sunny | 0 to 5 mph NW | 0% |
| Sunday Night | 44°F | Clear | 0 mph | 1% |
| Monday | 73°F | Sunny | 0 to 5 mph SSW | 1% |
| Monday Night | 48°F | Mostly Clear | 0 to 5 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Newcastle (33.196, -98.744). Updated through the day.
Growing snapshot for Newcastle
Last spring frost
Apr 1
First fall frost
Nov 5
Growing season
220 days
Hardiness zone
8a
More local growing data for Newcastle: nearby ZIP 76450 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Graham, Tx (6.5 mi from Newcastle). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.