| NWS Forecast for: San Juan County Issued by: National Weather Service Seattle, WA Last Update: 237 PM PDT Sun Apr 26 2026 |  |
| Tonight: Mostly clear. Lows in the 40s. Light wind. Monday: Mostly sunny. Highs in the mid 50s to lower 60s. South wind to 10 mph. Monday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the 40s. Light wind. Tuesday: Mostly cloudy. Highs in the mid to upper 50s. South wind to 10 mph in the morning becoming light. Tuesday Night: Mostly clear. Lows in the 40s. Light wind. Wednesday: Sunny. Highs near 60. Wednesday Night: Mostly clear. Lows in the mid to upper 40s. Thursday: Partly sunny. Highs in the lower 60s. Thursday Night: Partly cloudy. Lows in the mid to upper 40s. Friday: Mostly sunny. Highs in the lower 60s. Friday Night: Partly cloudy. Lows in the mid to upper 40s. Saturday: Mostly sunny. Highs in the lower 60s. Saturday Night: Mostly clear. Lows near 50. Sunday: Sunny. Highs in the mid to upper 60s. | |
| Zone Forecast: San Juan County | |
Visit your local NWS office at: https://www.weather.gov/sew |