| NWS Forecast for: San Juan County Issued by: National Weather Service Seattle, WA Last Update: 236 AM PDT Mon Jun 29 2026 | |
| Today: Mostly sunny. Highs in the upper 60s to mid 70s. Light wind. Tonight: Mostly clear in the evening then becoming mostly cloudy. Lows in the lower to mid 50s. South wind to 10 mph in the evening becoming light. Tuesday: Mostly cloudy in the morning then becoming mostly sunny. Highs in the mid 60s to lower 70s. Light wind. Tuesday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower to mid 50s. Light wind. Wednesday: Mostly cloudy. Highs in the mid 60s to lower 70s. Light wind. Wednesday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows near 50. Thursday: Partly sunny. Highs in the mid 60s to lower 70s. Thursday Night: Mostly cloudy. A slight chance of rain in the evening. Lows in the lower to mid 50s. Friday: Mostly sunny. Highs near 70. Friday Night: Mostly clear. Lows in the lower to mid 50s. Independence Day: Mostly sunny. Highs in the lower to mid 70s. Saturday Night: Partly cloudy. Lows in the lower to mid 50s. Sunday: Mostly sunny. Highs in the 70s. | |
| Zone Forecast: San Juan County | |
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