| NWS Forecast for: San Juan County Issued by: National Weather Service Seattle, WA Last Update: 236 AM PDT Tue Aug 4 2026 |  |
| Today: Sunny. Highs in the 70s to lower 80s. North wind to 10 mph. Tonight: Mostly clear. Patchy smoke after midnight. Lows in the mid 50s to lower 60s. Light wind becoming north to 10 mph after midnight. Wednesday: Sunny. Highs in the mid 70s to lower 80s. North wind to 10 mph. Wednesday Night: Mostly clear. Lows in the mid 50s to lower 60s. Light wind. Thursday: Sunny. Highs in the mid 70s to lower 80s. Light wind. Thursday Night: Mostly clear. Lows in the mid 50s to lower 60s. Friday: Sunny. Highs in the mid 70s to lower 80s. Friday Night: Mostly clear. Lows in the mid to upper 50s. Saturday: Sunny. Highs in the lower to mid 70s. Saturday Night: Mostly clear. Lows in the mid to upper 50s. Sunday: Mostly sunny. Highs in the lower to mid 70s. Sunday Night: Mostly clear. Lows in the 50s. Monday: Mostly sunny. Highs in the lower to mid 70s. | |
| Zone Forecast: San Juan County | |
Visit your local NWS office at: https://www.weather.gov/sew |