| NWS Forecast for: San Juan County Issued by: National Weather Service Seattle, WA Last Update: 236 AM PDT Wed Sep 30 2026 |  |
| Today: Partly sunny. Patchy fog in the morning. Highs in the mid 50s to lower 60s. Light wind. Tonight: Mostly cloudy. Patchy fog in the morning. Lows in the mid 40s to lower 50s. Light wind. Thursday: Partly sunny. Patchy fog in the morning. A slight chance of rain early in the afternoon. Highs in the mid 50s to lower 60s. Light wind. Thursday Night: Mostly cloudy with a slight chance of rain. Lows in the mid 40s to lower 50s. Light wind. Friday: Partly sunny. Highs in the upper 50s to mid 60s. Light wind. Friday Night: Mostly clear. Lows near 50. Saturday: Sunny. Highs in the lower to mid 60s. Saturday Night: Mostly clear. Lows near 50. Sunday: Sunny. Highs in the lower to mid 60s. Sunday Night: Partly cloudy. Lows near 50. Monday: Partly sunny. Highs in the lower to mid 60s. Monday Night: Partly cloudy. Lows near 50. Tuesday: Mostly sunny. Highs near 60. | |
| Zone Forecast: San Juan County | |
Visit your local NWS office at: https://www.weather.gov/sew |