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City of Newcastle, TXNewcastle, TX 7-Day Weather Forecast
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Newcastle Weather Forecast
Newcastle, TX Weather Forecast Date: 207 AM CDT Sat Sep 12 2026
Weather forecast for Newcastle, TX
Today Hi: 103°FHi: 39°C Lo: 75°F Lo: 24°C |
Today... Sunny, hot with highs around 103. South winds 5 to 10 mph. Heat index values up to 106. |
| Sun Hi: 101°FHi: 38°C Lo: 75°F Lo: 24°C |
Sunday... Sunny, hot with highs around 101. South winds 5 to 10 mph. Heat index values up to 105. |
| Mon Hi: 100°FHi: 38°C Lo: 75°F Lo: 24°C |
Monday... Sunny, hot with highs around 100. South winds 5 to 10 mph. |
| Tue Hi: 100°FHi: 38°C Lo: 75°F Lo: 24°C |
Tuesday... Sunny, hot with highs around 100. Heat index values up to 105. |
| Wed Hi: 100°FHi: 38°C Lo: 75°F Lo: 24°C |
Wednesday... Sunny, hot with highs around 100. Heat index values up to 105. |
| Thu Hi: 99°FHi: 37°C Lo: 71°F Lo: 22°C |
Thursday... Sunny, hot with highs in the upper 90s. |
Fri Hi: 95°FHi: 35°C |
Friday... Sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20%. |
Newcastle Radar Loop
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