Weather WorldNewcastle, CA 7-Day Weather Forecast
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Newcastle Weather Forecast
Newcastle, CA Weather Forecast Date: 311 AM PDT Mon Sep 14 2026
Weather forecast for Newcastle, CA
Today Hi: 89°FHi: 32°C Lo: 58°F Lo: 14°C |
Today... Haze early in the morning. Sunny. Highs around 89. Northwest winds up to 10 mph with gusts to around 20 mph. |
Tue Hi: 88°FHi: 31°C Lo: 58°F Lo: 14°C |
Tuesday... Sunny. Highs around 88. Light winds becoming southwest up to 10 mph in the afternoon. |
| Wed Hi: 83°FHi: 28°C Lo: 54°F Lo: 12°C |
Wednesday... Sunny. Highs around 83. South winds up to 10 mph with gusts to around 20 mph. |
| Thu Hi: 82°FHi: 28°C Lo: 58°F Lo: 14°C |
Thursday... Mostly sunny. Highs around 82. |
| Fri Hi: 86°FHi: 30°C Lo: 58°F Lo: 14°C |
Friday... Clear. Lows 54 to 60. Highs 82 to 89. |
| Sat Hi: 86°FHi: 30°C Lo: 58°F Lo: 14°C |
Saturday... Clear. Lows 54 to 60. Highs 82 to 89. |
| Sat Hi: 86°FHi: 30°C Lo: 58°F Lo: 14°C |
Saturday... Clear. Lows 54 to 60. Highs 82 to 89. |
Newcastle Radar Loop
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