| NWS Forecast for: San Juan County Issued by: National Weather Service Seattle, WA Last Update: 258 AM PDT Thu Mar 19 2026 | |
| Today: Rain at times. Rainfall amounts a quarter to a half inch possible. Highs in the lower to mid 50s. Southeast wind 10 to 15 mph. Tonight: Rain at times. Rainfall amounts a tenth to a quarter of an inch possible. Lows in the mid 40s to lower 50s. Southeast wind around 10 mph. Friday: Rain at times in the morning, then rain likely in the afternoon. Rainfall amounts a tenth to a quarter of an inch possible. Highs in the lower to mid 50s. South wind to 10 mph increasing to 10 to 15 mph in the afternoon. Friday Night: Mostly cloudy with a chance of rain in the evening, then partly cloudy with a slight chance of rain showers after midnight. Lows in the mid 30s to lower 40s. West wind 10 to 20 mph. Saturday: Mostly sunny. A slight chance of rain showers in the morning. Highs in the mid 40s to lower 50s. West wind 10 to 15 mph. Saturday Night: Mostly clear in the evening, then mostly cloudy with a chance of rain showers after midnight. Lows near 40. Sunday: Mostly cloudy. A chance of rain showers in the morning, then a slight chance of rain showers in the afternoon. Highs near 50. Sunday Night: Mostly cloudy. Lows near 40. Monday: Mostly cloudy with a slight chance of rain showers. Highs near 50. Monday Night: Mostly cloudy with a slight chance of rain in the evening, then cloudy with rain likely after midnight. Lows in the lower to mid 40s. Tuesday: Rain at times. Highs in the lower 50s. Tuesday Night: Rain at times in the evening, then rain likely after midnight. Lows near 40. Wednesday: Rain likely. Highs near 50. | |
| Zone Forecast: San Juan County | |
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