| NWS Forecast for: Black Diamond WA Issued by: National Weather Service Seattle, WA Last Update: 11:26 pm PDT Apr 19, 2026 | |
| Overnight: Mostly cloudy, with a low around 49. Calm wind. Monday: A 10 percent chance of rain after 5pm. Partly sunny, with a high near 73. Light and variable wind. Monday Night: A chance of rain before 1am, then a slight chance of rain after 3am. Partly cloudy, with a low around 48. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. Tuesday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 60. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible. Tuesday Night: Rain likely. Cloudy, with a low around 46. South southwest wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible. Wednesday: Rain likely. Cloudy, with a high near 53. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible. Wednesday Night: A 40 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 44. Thursday: Mostly sunny, with a high near 62. Thursday Night: Mostly clear, with a low around 42. Friday: Sunny, with a high near 67. Friday Night: Partly cloudy, with a low around 44. Saturday: Mostly sunny, with a high near 68. Saturday Night: Partly cloudy, with a low around 45. Sunday: Mostly sunny, with a high near 64. | |
| Black Diamond WA 47.31°N 122.01°W (Elev. 584 ft) | |
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