Acton

Sweetwater County, California, United States

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Current Weather

14°

Mostly Clear

Feels Like: 14°

Min: 14°

Max: 26°

The next few hours will be clear, with today reaching 26°C and dropping to 11°C. The coming days will be clear throughout the day.

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Hourly Forecast

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Today
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Daylight Hours

06:41

Sunrise

18:51

Sunset

12 hours 9 minutes of sunlight today

Moon

Waxing Crescent

12:19

Moonrise

21:21

Moonset

Daily Forecast

Today

14°
26°

Thursday

11°
23°

Friday

13°
26°

Saturday

15°
29°

Sunday

16°
28°

Monday

14°
26°

Tuesday

15°
28°

Wednesday

17°
29°

Thursday

14°
29°

Friday

20°
29°

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 Acton today, September 16, 2026

Expect a mostly clear day in Acton on September 16, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. The first half of the day looks overcast, as cloud amounts reach about 93% around 05:00. Brighter weather, if it comes, waits until later.

The day peaks near 26°C and cools toward 14°C. Moisture in the air spans 36%-99%, with the highest values around 03:00. Expect gentle winds, highest near 09:00 at 7.1 km/h.

Later hours favour clearer intervals, as cloud stays near 34% around 23:00. The afternoon is the better half for outdoor time. Horizontal visibility sits around 14.8 km, briefly nearer 11.2 km. Expect sunrise at 06:41, sunset at 18:51, and 12 hours 9 minutes of sunlight today overall.

The practical takeaway for Acton is a bright September 16, 2026, ideal for outdoor errands before temperatures ease from about 26°C.

Frequently asked questions about weather in Acton

How warm does it get in Acton?

The warmest month in Acton is July, with average high temperatures of 32°C. The average temperature during this period is around 25°C.

How cold does it get in Acton?

The coldest month in Acton is January, 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 Acton?

The wettest month in Acton is March, with an average of 70mm of precipitation.

What is the driest time of year in Acton?

The driest month in Acton is July, with an average of 3mm of precipitation.

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Metric (°C, km/h)