Sonoma County Airport (STS) Weather 07/13/2026
This Afternoon
90
Partly Sunny
Tonight
57
Mostly Cloudy
Sunday
88
Partly Sunny
Sunday Night
59
Mostly Cloudy
Monday
91
Mostly Cloudy
Monday Night
59
Partly Cloudy
Tuesday
92
Sunny
Tuesday Night
59
Mostly Clear
Wednesday
92
Sunny
Wednesday Night
56
Mostly Clear
Thursday
86
Mostly Sunny
Thursday Night
52
Mostly Clear
Friday
78
Patchy Fog then Mostly Sunny
Weekly Forecast
This Afternoon
Partly sunny, with a high near 90. South wind 8 to 10 mph.
Tonight
Mostly cloudy, with a low around 57. South wind 5 to 8 mph becoming calm after midnight.
Sunday
Partly sunny, with a high near 88. Calm wind becoming south 5 to 9 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 59. South wind 5 to 8 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 91. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Sunny, with a high near 92.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 52.
Friday
Patchy fog. Otherwise, mostly sunny, with a high near 78.