| NWS Forecast for: San Juan County Issued by: National Weather Service Seattle, WA Last Update: 236 AM PDT Tue Mar 31 2026 | |
| Today: Mostly cloudy. Highs near 50. Light wind. Tonight: Mostly cloudy. A chance of rain after midnight. Lows in the upper 30s to mid 40s. Light wind becoming southeast 10 to 20 mph after midnight. Wednesday: Rain at times. Rainfall amounts a tenth to a quarter of an inch possible. Highs near 50. Southeast wind 10 to 20 mph with gusts to 30 mph. Wednesday Night: Mostly cloudy with rain likely in the evening, then mostly cloudy with a chance of rain after midnight. Rainfall amounts a tenth to a quarter of an inch possible. Lows near 40. South wind around 10 mph with gusts to 20 mph in the evening becoming light. Thursday: Partly sunny. A chance of rain in the morning. Highs in the upper 40s to mid 50s. Light wind. Thursday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 40s. Friday: Partly sunny. Highs in the lower 50s. Friday Night: Partly cloudy. Lows in the lower 40s. Saturday: Mostly sunny. Highs in the lower to mid 50s. Saturday Night: Mostly cloudy. Lows in the lower to mid 40s. Sunday: Partly sunny. Highs in the mid 50s. Sunday Night: Mostly cloudy. Lows in the lower to mid 40s. Monday: Partly sunny. Highs in the mid to upper 50s. | |
| Zone Forecast: San Juan County | |
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