| NWS Forecast for: San Juan County Issued by: National Weather Service Seattle, WA Last Update: 236 PM PDT Wed Sep 2 2026 |  |
| Tonight: Windy. Cloudy then becoming partly cloudy in the late evening and early morning then becoming mostly cloudy. A chance of rain in the evening. A slight chance of rain after midnight, then a chance of rain late in the night. Lows in the upper 40s to mid 50s. Southeast wind 20 to 30 mph with gusts to 45 mph decreasing to 10 to 20 mph after midnight. Thursday: Partly sunny. A slight chance of rain in the morning. Highs in the 60s. Southeast wind 10 to 15 mph. Gusts to 30 mph in the morning. Thursday Night: Partly cloudy. Lows in the upper 40s to mid 50s. Light wind. Friday: Partly sunny. Highs in the 60s. Light wind. Friday Night: Mostly cloudy. A slight chance of rain after midnight. Lows in the upper 40s to mid 50s. Light wind. Saturday: Partly sunny. A slight chance of rain in the morning. Highs in the mid to upper 60s. Saturday Night: Partly cloudy. Lows in the lower to mid 50s. Sunday: Mostly sunny. Highs near 70. Sunday Night: Mostly clear. Lows in the lower to mid 50s. Labor Day: Mostly sunny. Highs near 70. Monday Night: Partly cloudy. Lows in the lower to mid 50s. Tuesday: Partly sunny. Highs in the mid to upper 60s. Tuesday Night: Mostly clear. Lows in the lower to mid 50s. Wednesday: Mostly sunny. Highs near 70. | |
| Zone Forecast: San Juan County | |
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