Santa Rosa, California Weather:
Friday, September 18, 2026
Cloudy Weather
Day 82°
Night 50°
Precipitation 1 %
Wind 6 mph
UV Index (0 - 11+) 6
Weather Forecast History
Last Year's Weather on This Day (September 18, 2025)
Rainy Weather

Day

81°

Night

57°

Wind

5 mph

Precipitation

80 %