Santa Rosa, CA Weather Tomorrow

Keep up with changing weather in Santa Rosa using tomorrow's forecast and the next 5 days of precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction for the Santa Rosa area and around Sonoma county, California.
Updated: Wed Sep 23rd 2026 3:15 AM PDT
Santa Rosa, CA Weather – 9-23 – Sunny
90° / 56°
Sunny
Highs will reach 90°F with lows near 56°F in Santa Rosa, where a sunny day is. There's a very small chance of rainfall, only about 3%. Winds will be light at 10mph and gusts of 16.1mph at 4 PM. Humidity levels should be comfortable, sitting around 48% on average, the maximum being 73% at 4 AM and 19% being its lowest at 2 PM. Barometric pressure is its highest of 29.9inHg at 8 AM, a lowest point of 29.81inHg at 4 PM with an avg 29.85inHg.
Santa Rosa, CA Weather – 9-24 – Overcast
85° / 60°

Weather Tomorrow

Overcast
Cloud-filled skies are in the forecast for Santa Rosa, with a high of 85°F and a low of 60°F. There's a very small chance of rainfall, only about 5%. Winds will be light at 10mph and gusts of 20.1mph at 2 PM. Humidity levels should be comfortable, sitting around 39% on average, the maximum being 56% at 7 AM and 21% being its lowest at 1 PM. Barometric pressure is its highest of 29.92inHg at 11 PM, a lowest point of 29.82inHg at 5 PM with an avg 29.85inHg.
Santa Rosa, CA Weather – 9-25 – Sunny
85° / 55°
Sunny
In Santa Rosa, bright and sunny conditions with highs near 85°F and lows around 55°F. There's a very small chance of rainfall, only about 4%. Wind will be moderate, blowing around 11mph on average and gusts of 22.1mph at 4 PM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 89% at 7 AM and 15% being its lowest at 2 PM. Barometric pressure is its highest of 29.97inHg at 8 AM, a lowest point of 29.85inHg at 5 PM with an avg 29.92inHg.
Santa Rosa, CA Weather – 9-26 – Sunny
77° / 51°
Sunny
It will be sunny in Santa Rosa, with a high of 77°F and a low of 51°F. There's a very small chance of rainfall, only about 6%. Winds will be light at 10mph and gusts of 19.7mph at 4 PM. Humidity levels should be comfortable, sitting around 58% on average, the maximum being 80% at 7 AM and 21% being its lowest at 1 PM. Barometric pressure is its highest of 29.93inHg at 11 PM, a lowest point of 29.83inHg at 6 PM with an avg 29.9inHg.
Santa Rosa, CA Weather – 9-27 – Sunny
81° / 49°
Sunny
Santa Rosa could see a sunny day with daytime highs of 81°F and nighttime lows near 49°F. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 11mph on average and gusts of 12.5mph at 5 PM. The humidity will be on the higher side, averaging about 62%, the maximum being 92% at 4 AM and 30% being its lowest at 5 PM. Barometric pressure is its highest of 29.98inHg at 8 AM, a lowest point of 29.87inHg at 5 PM with an avg 29.92inHg.
Santa Rosa, CA Weather – 9-28 – Sunny
85° / 55°
Sunny
Daytime highs will reach 85°F with lows dropping to 55°F in Santa Rosa, where bright and sunny conditions. There's a very small chance of rainfall, only about 1%. Winds will be light at 7mph and gusts of 8.1mph at 5 PM. Humidity levels should be comfortable, sitting around 50% on average, the maximum being 84% at 1 AM and 18% being its lowest at 2 PM. Barometric pressure is its highest of 29.97inHg at 9 AM, a lowest point of 29.83inHg at 5 PM with an avg 29.91inHg.

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