| NWS Forecast for: San Juan County Issued by: National Weather Service Seattle, WA Last Update: 236 PM PDT Mon Mar 23 2026 | |
Tonight: Cloudy. A chance of rain late in the night. Lows near 40. Light wind. Tuesday: Windy. Rain in the morning, then cloudy with a chance of rain early in the afternoon. Cloudy late in the afternoon. Rainfall amounts a quarter to a half inch possible. Highs in the lower to mid 50s. Southeast wind 15 to 30 mph. Gusts to 40 mph in the afternoon. Tuesday Night: Rain likely in the evening, then rain showers likely and a slight chance of thunderstorms late in the evening. Rain at times after midnight. Rainfall amounts less than a tenth of an inch likely, except higher amounts possible in thunderstorms. Lows near 40. Southwest wind 10 to 20 mph. Gusts to 35 mph in the evening. Wednesday: Rain at times. Rainfall amounts less than a tenth of an inch likely. Highs in the mid 40s to lower 50s. Southwest wind 10 to 15 mph. Wednesday Night: Mostly cloudy with rain likely in the evening, then mostly cloudy with a chance of rain after midnight. Rainfall amounts less than a tenth of an inch likely. Lows in the mid 30s to lower 40s. West wind 10 to 15 mph becoming southwest after midnight. Gusts to 25 mph. Thursday: Mostly sunny. A chance of rain and snow in the morning. Highs near 50. Thursday Night: Partly cloudy. Lows in the mid to upper 30s. Friday: Mostly sunny. Highs in the lower 50s. Friday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows near 40. Saturday: Partly sunny. Highs in the lower to mid 50s. Saturday Night: Mostly cloudy. Lows in the lower to mid 40s. Sunday: Mostly cloudy with a slight chance of rain. Highs in the lower to mid 50s. Sunday Night: Mostly cloudy with a chance of rain. Lows in the lower to mid 40s. Monday: Mostly cloudy with a chance of rain. Highs in the lower 50s. | |
| Zone Forecast: San Juan County | |
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