| NWS Forecast for: San Juan County Issued by: National Weather Service Seattle, WA Last Update: 236 PM PDT Tue May 19 2026 | |
| Tonight: Mostly cloudy. Lows near 50. Southwest wind to 10 mph becoming west after midnight. Wednesday: Mostly sunny. Highs in the 60s. Northwest wind to 10 mph. Wednesday Night: Mostly cloudy. Lows near 50. Light wind. Thursday: Mostly sunny. Highs in the mid 60s to lower 70s. Light wind. Thursday Night: Mostly clear. Lows in the lower to mid 50s. Light wind. Friday: Sunny. Highs near 70. Friday Night: Partly cloudy. Lows in the lower to mid 50s. Saturday: Mostly sunny. Highs near 70. Saturday Night: Partly cloudy. Lows in the lower 50s. Sunday: Partly sunny. Highs in the mid to upper 60s. Sunday Night: Mostly cloudy with a chance of rain. Lows near 50. Memorial Day: Mostly cloudy with a chance of rain. Highs in the lower 60s. Monday Night: Partly cloudy with a slight chance of rain. Lows in the upper 40s. Tuesday: Mostly sunny. A slight chance of rain in the morning. Highs in the lower to mid 60s. | |
| Zone Forecast: San Juan County | |
Visit your local NWS office at: https://www.weather.gov/sew |