| NWS Forecast for: San Juan County Issued by: National Weather Service Seattle, WA Last Update: 236 PM PDT Mon Sep 21 2026 | |
| Tonight: Mostly clear in the evening then becoming mostly cloudy. Lows in the upper 40s to mid 50s. Southwest wind 10 to 15 mph. Tuesday: Mostly sunny. Highs in the 60s. Southwest wind to 10 mph becoming south in the afternoon. Tuesday Night: Mostly cloudy. Lows in the upper 40s to mid 50s. Southwest wind around 10 mph becoming south to 10 mph after midnight. Wednesday: Partly sunny. Highs in the 60s. South wind to 10 mph. Wednesday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 40s to mid 50s. South wind to 10 mph becoming northwest after midnight. Thursday: Mostly cloudy. A chance of rain in the afternoon. Highs in the lower to mid 60s. Thursday Night: Rain likely. Lows near 50. Friday: Partly sunny. A chance of rain in the morning. Highs in the lower to mid 60s. Friday Night: Partly cloudy with a slight chance of rain. Lows near 50. Saturday: Mostly sunny. Highs in the lower to mid 60s. Saturday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows near 50. Sunday: Partly sunny with a slight chance of rain. Highs in the lower to mid 60s. Sunday Night: Mostly cloudy. A slight chance of rain in the evening, then a chance of rain after midnight. Lows near 50. Monday: Mostly cloudy with a chance of rain. Highs in the lower to mid 60s. | |
| Zone Forecast: San Juan County | |
Visit your local NWS office at: https://www.weather.gov/sew |