Newcastle, TX Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Newcastle, TX in one place.
Mostly sunny. High near 99, with temperatures falling to around 97 in the afternoon. Heat index values as high as 106. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Local Weather Overview
This forecast page for Newcastle, TX is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 24, 2026 10:47 AM CDT.
The active forecast window currently covers Jul 24 to Jul 30, 2026 for Newcastle, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 30, 2026
- Latest sync
- Jul 24, 2026 10:47 AM CDT
- Forecast office
- FWD
- Source
- NOAA / NWS
Daily Outlook
This Week in Newcastle
Tuesday looks like the warmest upcoming period in Newcastle at 104 degrees F.
Saturday Night is the coolest period ahead with temperatures near 78 degrees F.
The strongest winds are forecast for Today at about 5 to 10 mph SSE.
The forecast from Jul 24 through Jul 30 stays mostly dry.
Forecast Details
- Last updated
- Jul 24, 2026 10:47 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- FWD
- Radar station
- KDYX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy. Low around 79, with temperatures rising to around 81 overnight. Heat index values as high as 106. South wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly sunny, with a high near 100. Heat index values as high as 104. South southwest wind around 10 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 78. Heat index values as high as 104. South wind 5 to 10 mph.
Sunny, with a high near 102. South southwest wind 5 to 10 mph.
Clear. Low around 79, with temperatures rising to around 81 overnight. South wind 5 to 10 mph.
Sunny, with a high near 103. South southwest wind 5 to 10 mph.
Mostly clear, with a low around 79. South wind 5 to 10 mph.
Sunny, with a high near 104. South southwest wind 5 to 10 mph.
Mostly clear, with a low around 79.
Sunny, with a high near 104.
Mostly clear, with a low around 80.
Sunny, with a high near 104.
Mostly clear, with a low around 81.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jul 24
|
Mostly Sunny
|
99°F |
5 to 10 mph
SSE
|
|
Tonight
Jul 24
|
Partly Cloudy
|
79°F |
5 to 10 mph
S
|
|
Saturday
Jul 25
|
Mostly Sunny
|
100°F |
10 mph
SSW
|
|
Saturday Night
Jul 25
|
Mostly Clear
|
78°F |
5 to 10 mph
S
|
|
Sunday
Jul 26
|
Sunny
|
102°F |
5 to 10 mph
SSW
|
|
Sunday Night
Jul 26
|
Clear
|
79°F |
5 to 10 mph
S
|
|
Monday
Jul 27
|
Sunny
|
103°F |
5 to 10 mph
SSW
|
|
Monday Night
Jul 27
|
Mostly Clear
|
79°F |
5 to 10 mph
S
|
|
Tuesday
Jul 28
|
Sunny
|
104°F |
5 to 10 mph
SSW
|
|
Tuesday Night
Jul 28
|
Mostly Clear
|
79°F |
5 to 10 mph
S
|
|
Wednesday
Jul 29
|
Sunny
|
104°F |
5 to 10 mph
SSW
|
|
Wednesday Night
Jul 29
|
Mostly Clear
|
80°F |
5 to 10 mph
S
|
|
Thursday
Jul 30
|
Sunny
|
104°F |
5 mph
SSW
|
|
Thursday Night
Jul 30
|
Mostly Clear
|
81°F |
5 to 10 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Newcastle.
