| NWS Forecast for: San Juan County Issued by: National Weather Service Seattle, WA Last Update: 236 PM PDT Mon Sep 14 2026 | |
| Tonight: Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 40s to mid 50s. South wind to 10 mph in the evening becoming light. Tuesday: Patchy fog in the morning. Mostly cloudy with a slight chance of rain in the morning, then sunny in the afternoon. Highs in the 60s. Light wind becoming north to 10 mph in the afternoon. Tuesday Night: Mostly clear. Lows in the upper 40s to mid 50s. Light wind. Wednesday: Sunny. Patchy fog in the morning. Highs in the 60s to lower 70s. Light wind. Wednesday Night: Mostly clear. Lows in the upper 40s to mid 50s. Light wind. Thursday: Sunny. Highs near 70. Thursday Night: Clear. Lows near 50. Friday: Sunny. Highs in the mid to upper 60s. Friday Night: Partly cloudy. Lows in the lower to mid 50s. Saturday: Partly sunny. Highs in the mid to upper 60s. Saturday Night: Partly cloudy. Lows near 50. Sunday: Mostly sunny. Highs in the mid to upper 60s. Sunday Night: Partly cloudy. Lows near 50. Monday: Mostly sunny. Highs in the mid to upper 60s. | |
| Zone Forecast: San Juan County | |
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