| NWS Forecast for: Newcastle WA Issued by: National Weather Service Seattle, WA Last Update: 11:26 am PDT Jun 11, 2026 | |
Tonight: Mostly clear, with a low around 51. Northeast wind 3 to 7 mph. Friday: Sunny, with a high near 72. Calm wind becoming north northwest 5 to 8 mph in the morning. Friday Night: Mostly clear, with a low around 53. North northwest wind 5 to 7 mph becoming light and variable after midnight. Saturday: Sunny, with a high near 80. North wind 5 to 9 mph. Saturday Night: Mostly clear, with a low around 57. Northeast wind 5 to 9 mph. Sunday: Sunny, with a high near 86. Sunday Night: Mostly clear, with a low around 62. Monday: Mostly sunny, with a high near 88. Monday Night: Partly cloudy, with a low around 62. Tuesday: Sunny, with a high near 83. Tuesday Night: A slight chance of rain. Partly cloudy, with a low around 56. Wednesday: Mostly sunny, with a high near 75. Wednesday Night: Partly cloudy, with a low around 54. Thursday: Mostly sunny, with a high near 73. | |
| Newcastle WA 47.54°N 122.17°W (Elev. 397 ft) | |
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