Alta Sierra

Skagit County, California, United States

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Current Weather

21°

Clear

Feels Like: 22°

Min: 12°

Max: 23°

The next few hours will be clear, with today reaching 23°C and dropping to 9°C. The coming days will be clear throughout the day.

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Hourly Forecast

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1am
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Today
Tomorrow

Daylight Hours

06:52

Sunrise

19:04

Sunset

12 hours 11 minutes of sunlight today

Moon

Waxing Crescent

12:46

Moonrise

21:18

Moonset

Daily Forecast

Today

12°
23°

Thursday

22°

Friday

12°
27°

Saturday

15°
28°

Sunday

16°
27°

Monday

16°
28°

Tuesday

17°
30°

Wednesday

18°
30°

Thursday

17°
31°

Friday

14°
33°

Air Quality Data Available

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UV Index

Seek shade during midday
6 High
Low Extreme

Humidity

42% Dry
Low High

Weather in Alta Sierra today, September 16, 2026

Expect a mostly clear day in Alta Sierra on September 16, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled.

The temperature range runs from about 12°C up to 23°C. Expect humidity between 33% and 81%, most humid near 23:00. Airflow remains manageable, reaching about 5.6 km/h around 13:00.

Expect a more open afternoon, with limited cloud around 2% by 23:00. Residual damp risk should be lower than earlier. Expect visibility around 16.1 km. Sunrise is at 06:52 and sunset at 19:04, giving 12 hours 11 minutes of sunlight today.

The practical takeaway for Alta Sierra is a bright September 16, 2026, ideal for outdoor errands before temperatures ease from about 23°C.

Frequently asked questions about weather in Alta Sierra

How warm does it get in Alta Sierra?

The warmest month in Alta Sierra is July, with average high temperatures of 34°C. The average temperature during this period is around 26°C.

How cold does it get in Alta Sierra?

The coldest month in Alta Sierra is February, with average low temperatures of 3°C. The average temperature during this period is around 8°C.

What is the wettest time of year in Alta Sierra?

The wettest month in Alta Sierra is March, with an average of 294mm of precipitation.

What is the driest time of year in Alta Sierra?

The driest month in Alta Sierra is July, with an average of 0mm of precipitation.

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Metric (°C, km/h)