Santa Rosa

Sweet Grass County, California, United States

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Current Weather

13°

Foggy

Feels Like: 22°

Min: 13°

Max: 23°

The next few hours will be foggy, with today reaching 23°C and dropping to 13°C. The coming days will be mostly cloudy and windy throughout the day.

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Compare today's weather with yesterday's data and track temperature trends over time.

Hourly Forecast

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Today
Tomorrow

Daylight Hours

06:59

Sunrise

19:10

Sunset

12 hours 11 minutes of sunlight today

Moon

Waxing Crescent

12:51

Moonrise

21:27

Moonset

Daily Forecast

Today

13°
23°

Thursday

23°
25°

Friday

22°
25°

Saturday

21°
22°

Sunday

21°
24°

Monday

22°
23°

Tuesday

21°
23°

Wednesday

22°
23°

Thursday

14°
28°

Friday

14°
31°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

98% Very Humid
Low High

Weather in Santa Rosa today, September 16, 2026

Misty spells are likely in Santa Rosa on September 16, 2026, especially during quieter hours. The day can open dull before any clearer intervals arrive. Cloud leads the morning, peaking close to 100% near 07:00. Sunshine has little room until later in the day.

Temperatures climb from an overnight low near 13°C toward a daytime high of about 23°C. Expect humidity between 47% and 98%, most humid near 07:00. A lighter breeze peaks around 14:00 near 5.2 km/h.

Afternoon conditions open up, holding cloud close to 42% near 23:00. The day finishes on a milder, brighter note. Expect visibility near 14.3 km, with poorer spells close to 0.3 km. Sunrise is at 06:59 and sunset at 19:10, giving 12 hours 11 minutes of sunlight today.

Overall, Santa Rosa on September 16, 2026 needs patience with visibility, especially early, even as temperatures reach about 23°C.

Frequently asked questions about weather in Santa Rosa

How warm does it get in Santa Rosa?

The warmest month in Santa Rosa is July, with average high temperatures of 30°C. The average temperature during this period is around 21°C.

How cold does it get in Santa Rosa?

The coldest month in Santa Rosa is December, with average low temperatures of 5°C. The average temperature during this period is around 9°C.

What is the wettest time of year in Santa Rosa?

The wettest month in Santa Rosa is January, with an average of 161mm of precipitation.

What is the driest time of year in Santa Rosa?

The driest month in Santa Rosa is July, with an average of 0mm of precipitation.

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Metric (°C, km/h)