Sonoma County Airport (STS) Weather 10/20/2025
Tonight
49
Clear then Patchy Fog
Sunday
77
Sunny
Sunday Night
48
Mostly Clear
Monday
81
Sunny
Monday Night
48
Mostly Clear
Tuesday
81
Sunny
Tuesday Night
49
Partly Cloudy
Wednesday
72
Patchy Fog then Mostly Sunny
Wednesday Night
47
Partly Cloudy then Patchy Fog
Thursday
72
Areas Fog then Mostly Sunny
Thursday Night
49
Mostly Cloudy
Friday
69
Slight Chance Rain and Patchy Fog
Friday Night
52
Chance Rain
Weekly Forecast
Tonight
Patchy fog between 1am and 3am. Otherwise, mostly clear, with a low around 49. West southwest wind 5 to 9 mph becoming calm.
Sunday
Sunny, with a high near 77. South southwest wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 48. West wind 5 to 8 mph becoming north in the evening.
Monday
Sunny, with a high near 81. North wind around 6 mph becoming calm.
Monday Night
Mostly clear, with a low around 48. West southwest wind around 6 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 72.
Wednesday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 47.
Thursday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 72.
Thursday Night
Mostly cloudy, with a low around 49.
Friday
A slight chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 69.
Friday Night
A chance of rain. Cloudy, with a low around 52.