| NWS Forecast for: Newcastle WA Issued by: National Weather Service Seattle, WA Last Update: 2:25 pm PDT Jul 12, 2025 | |
| Tonight: Partly cloudy, with a low around 62. North northeast wind around 6 mph. Sunday: Sunny, with a high near 87. North wind 3 to 7 mph. Sunday Night: Partly cloudy, with a low around 62. North northeast wind around 8 mph. Monday: Partly sunny, with a high near 80. Light and variable wind becoming west northwest around 6 mph in the afternoon. Monday Night: Mostly clear, with a low around 59. North northwest wind 5 to 7 mph becoming light and variable after midnight. Tuesday: Sunny, with a high near 84. Tuesday Night: Mostly clear, with a low around 62. Wednesday: Sunny, with a high near 89. Wednesday Night: Mostly clear, with a low around 62. Thursday: Sunny, with a high near 85. Thursday Night: Mostly clear, with a low around 60. Friday: Sunny, with a high near 83. Friday Night: Mostly clear, with a low around 59. Saturday: Sunny, with a high near 82. | |
| Newcastle WA 47.52°N 122.17°W (Elev. 400 ft) | |
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