| NWS Forecast for: San Juan County Issued by: National Weather Service Seattle, WA Last Update: 230 PM PDT Mon Sep 29 2025 | |
Tonight: Mostly cloudy until early morning then becoming partly cloudy. Showers likely in the evening. A slight chance of thunderstorms in the evening. A chance of showers in the late evening and early morning. Rainfall amounts less than a tenth of an inch likely, except higher amounts possible in thunderstorms. Lows in the upper 40s to mid 50s. South wind around 10 mph becoming southeast with gusts to 25 mph after midnight. Tuesday: Breezy. Mostly cloudy. A slight chance of rain in the morning, then a chance of rain early in the afternoon. Rain at times late in the afternoon. Rainfall amounts less than a tenth of an inch likely. Highs in the mid 60s to lower 70s. Southeast wind 15 to 25 mph with gusts to 35 mph. Tuesday Night: Windy. Rain at times. Rainfall amounts a tenth to a quarter of an inch possible. Lows in the upper 40s to mid 50s. Southeast wind 15 to 30 mph. Gusts to 50 mph decreasing to 40 mph after midnight. Wednesday: Breezy. Rain at times in the morning, then showers and a slight chance of thunderstorms in the afternoon. Rainfall amounts less than a tenth of an inch likely, except higher amounts possible in thunderstorms. Highs in the 60s to lower 70s. Southeast wind 15 to 25 mph with gusts to 35 mph. Wednesday Night: Breezy. Showers and a slight chance of thunderstorms in the evening, then showers after midnight. Rainfall amounts less than a tenth of an inch likely, except higher amounts possible in thunderstorms. Lows in the upper 40s to mid 50s. Southeast wind 15 to 25 mph with gusts to 40 mph. Thursday: Showers. Highs in the 60s. Thursday Night: Mostly cloudy with showers likely in the evening, then mostly cloudy with a chance of showers after midnight. Lows near 50. Friday: Partly sunny with a chance of showers. Highs in the lower to mid 60s. Friday Night: Mostly cloudy with a chance of showers in the evening, then mostly cloudy with showers likely after midnight. Lows near 50. Saturday: Partly sunny with a chance of showers. Highs in the lower to mid 60s. Saturday Night: Partly cloudy. A slight chance of showers in the evening. Lows in the mid to upper 40s. Sunday: Sunny. Highs in the lower to mid 60s. Sunday Night: Mostly clear. Lows in the mid to upper 40s. Monday: Sunny. Highs in the lower to mid 60s. | |
| Zone Forecast: San Juan County | |
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