| NWS Forecast for: Newcastle WA Issued by: National Weather Service Seattle, WA Last Update: 4:15 pm PDT Jul 13, 2025 | |
| Tonight: Partly cloudy, with a low around 60. Northeast wind 6 to 9 mph. Monday: Cloudy, then gradually becoming mostly sunny, with a high near 75. North northeast wind around 6 mph becoming northwest in the afternoon. Monday Night: Mostly clear, with a low around 58. Northwest wind around 6 mph becoming northeast after midnight. Tuesday: Sunny, with a high near 84. Calm wind becoming north 5 to 8 mph in the afternoon. Tuesday Night: Mostly clear, with a low around 62. Northeast wind 6 to 9 mph. Wednesday: Sunny, with a high near 90. Wednesday Night: Mostly clear, with a low around 61. Thursday: Sunny, with a high near 87. Thursday Night: Mostly clear, with a low around 60. Friday: Sunny, with a high near 84. Friday Night: Mostly clear, with a low around 57. Saturday: Mostly sunny, with a high near 78. Saturday Night: Partly cloudy, with a low around 57. Sunday: Mostly sunny, with a high near 78. | |
| Newcastle WA 47.53°N 122.14°W (Elev. 873 ft) | |
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