| NWS Forecast for: San Juan County Issued by: National Weather Service Seattle, WA Last Update: 131 PM PST Wed Jan 14 2026 | |
| Tonight: Partly cloudy in the evening then becoming mostly cloudy. Areas of fog in the evening, then patchy fog after midnight. Lows in the lower to mid 40s. Light wind. Thursday: Mostly cloudy in the morning then becoming mostly sunny. Patchy dense fog until late afternoon. Highs in the mid to upper 40s. North wind to 10 mph. Thursday Night: Mostly clear. Patchy fog in the evening. Lows near 40. North wind to 10 mph. Friday: Sunny. Highs in the mid 40s to lower 50s. Light wind. Friday Night: Mostly clear. Lows near 40. Light wind. Saturday: Sunny. Highs in the upper 40s. Saturday Night: Mostly clear. Patchy fog after midnight. Lows in the upper 30s. Sunday: Sunny. Patchy fog in the morning. Highs in the mid to upper 40s. Sunday Night: Mostly clear. Patchy fog. Lows in the upper 30s. Martin Luther King Jr Day: Mostly sunny. Patchy fog in the morning. Highs in the mid to upper 40s. Monday Night: Partly cloudy. Patchy fog after midnight. Lows in the upper 30s. Tuesday: Partly sunny. Patchy fog in the morning. Highs in the mid to upper 40s. Tuesday Night: Mostly cloudy. Patchy fog. Lows in the upper 30s. Wednesday: Mostly cloudy. Patchy fog. Highs in the mid to upper 40s. | |
| Zone Forecast: San Juan County | |
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