As of 12:50 PDT

Weather in Acton, CA

91°

Acton, Thursday, 8 October, 12:50

Mostly clear. Feels like 88°. High 91°, low 60°.

Pressure29.85 inHg

Wind3.4 mph NE

Humidity24%

Visibility6.2 mi

Dew point49°

See detailed hourly forecast

Monthly outlook for Acton, CA: average high 73.5°, average low 54.3°. That is 1.4° below the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 8 October (91°), the coolest 13 October (43.7°).

73.5°/54.3°

Average high / low

−1.4°

Below normal

1 / 1

Wet days / normal

0.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	70.8°	76.9°	-3.4°
18 October – 27 October	78°	73.8°	+2.3°
28 October – 6 November	at normal	69.5°	—

October records over 66 years

100.2°3 October 2024All-time high

28°31 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Desert View Highlands (7 mi).

Fri, 0983° / 58°

83 °

Acton, Friday, 9 October

Clear. High 83°, low 58°.

Pressure29.80 inHg

Wind11.9 mph SW

Humidity21%

Visibility6.2 mi

Dew point41°

Sat, 1074° / 60°

74 °

Acton, Saturday, 10 October

Overcast. High 74°, low 60°.

Pressure29.71 inHg

Wind13 mph SW

Humidity22%

Visibility6.2 mi

Dew point33°

Sun, 1174° / 49°

74 °

Acton, Sunday, 11 October

Clear. High 74°, low 49°.

Pressure29.47 inHg

Wind15 mph SW

Humidity27%

Visibility6.2 mi

Dew point39°

Mon, 1255° / 45°

0.18

55 °

Acton, Monday, 12 October

Light rain. High 55°, low 45°.

Pressure29.85 inHg

Wind15 mph SW

Humidity58%

Visibility5.5 mi

Dew point39°

Tue, 1360° / 44°

60 °

Acton, Tuesday, 13 October

Mostly clear. High 60°, low 44°.

Pressure29.97 inHg

Wind11 mph SW

Humidity49%

Visibility—

Dew point36°

Wed, 1466° / 47°

66 °

Acton, Wednesday, 14 October

Partly cloudy. High 66°, low 47°.

Pressure29.97 inHg

Wind9.7 mph SW

Humidity51%

Visibility—

Dew point39°

Thu, 1569° / 50°

69 °

Acton, Thursday, 15 October

Clear. High 69°, low 50°.

Pressure29.97 inHg

Wind5.9 mph SW

Humidity41%

Visibility—

Dew point38°

Fri, 1667° / 54°

67 °

Acton, Friday, 16 October

Clear. High 67°, low 54°.

Pressure30.12 inHg

Wind24.1 mph NE

Humidity18%

Visibility—

Dew point18°

Sat, 1769° / 53°

69 °

Acton, Saturday, 17 October

Clear. High 69°, low 53°.

Pressure30.09 inHg

Wind15.5 mph NE

Humidity16%

Visibility—

Dew point17°

Sun, 1873° / 53°

73 °

Acton, Sunday, 18 October

Clear. High 73°, low 53°.

Pressure30.12 inHg

Wind11.4 mph NE

Humidity15%

Visibility—

Dew point16°

Mon, 1975° / 55°

75 °

Acton, Monday, 19 October

Clear. High 75°, low 55°.

Pressure30.09 inHg

Wind10 mph NE

Humidity12%

Visibility—

Dew point13°

Tue, 2080° / 58°

80 °

Acton, Tuesday, 20 October

Clear. High 80°, low 58°.

Pressure30.12 inHg

Wind19.8 mph NE

Humidity12%

Visibility—

Dew point17°

Wed, 2180° / 61°

80 °

Acton, Wednesday, 21 October

Clear. High 80°, low 61°.

Pressure30.06 inHg

Wind11.3 mph NE

Humidity12%

Visibility—

Dew point18°

Thu, 2281° / 62°

81 °

Acton, Thursday, 22 October

Clear. High 81°, low 62°.

Pressure29.97 inHg

Wind6.8 mph NE

Humidity10%

Visibility—

Dew point15°

Fri, 2379° / 58°

79 °

Acton, Friday, 23 October

Clear. High 79°, low 58°.

Pressure29.77 inHg

Wind12.8 mph SW

Humidity11%

Visibility—

Dew point17°

From day 17 onward the outlook is built from 60-year climate statistics

Sat, 2474° / 53°

0.02

74 °

Acton, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high74°

Average low53°

Average precipitation0.02 in

Chance of precipitation7%

Record high86° (2003)

Record low42° (1975)

Sun, 2573° / 53°

0.01

73 °

Acton, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high73°

Average low53°

Average precipitation0.01 in

Chance of precipitation2%

Record high85° (1990)

Record low38° (1971)

Mon, 2672° / 52°

0.01

72 °

Acton, Monday, 26 October

Climate normal for this date — 60-year average.

Average high72°

Average low52°

Average precipitation0.01 in

Chance of precipitation10%

Record high85° (2017)

Record low39° (1996)

Tue, 2771° / 52°

0.04

71 °

Acton, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high71°

Average low52°

Average precipitation0.04 in

Chance of precipitation12%

Record high86° (2018)

Record low40° (1982)

Wed, 2871° / 51°

0.02

71 °

Acton, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high71°

Average low51°

Average precipitation0.02 in

Chance of precipitation8%

Record high87° (2003)

Record low38° (1991)

Thu, 2969° / 50°

0.01

69 °

Acton, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high69°

Average low50°

Average precipitation0.01 in

Chance of precipitation5%

Record high85° (2008)

Record low31° (1971)

Fri, 3068° / 49°

0.04

68 °

Acton, Friday, 30 October

Climate normal for this date — 60-year average.

Average high68°

Average low49°

Average precipitation0.04 in

Chance of precipitation15%

Record high82° (1966)

Record low34° (1971)

Sat, 3169° / 48°

0.02

69 °

Acton, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high69°

Average low48°

Average precipitation0.02 in

Chance of precipitation7%

Record high81° (1966)

Record low28° (2019)

Sun, 0170° / 49°

0.04

70 °

Acton, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high70°

Average low49°

Average precipitation0.04 in

Chance of precipitation12%

Record high84° (2015)

Record low35° (1971)

Mon, 0269° / 50°

0.01

69 °

Acton, Monday, 2 November

Climate normal for this date — 60-year average.

Average high69°

Average low50°

Average precipitation0.01 in

Chance of precipitation7%

Record high81° (1997)

Record low39° (2004)

Tue, 0370° / 49°

70 °

Acton, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high70°

Average low49°

Average precipitation0 in

Chance of precipitation3%

Record high83° (2010)

Record low36° (1994)

Wed, 0470° / 50°

0.03

70 °

Acton, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high70°

Average low50°

Average precipitation0.03 in

Chance of precipitation7%

Record high83° (1980)

Record low36° (1994)

Thu, 0570° / 49°

0.01

70 °

Acton, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high70°

Average low49°

Average precipitation0.01 in

Chance of precipitation3%

Record high81° (1988)

Record low35° (2011)

Fri, 0669° / 49°

0.01

69 °

Acton, Friday, 6 November

Climate normal for this date — 60-year average.

Average high69°

Average low49°

Average precipitation0.01 in

Chance of precipitation7%

Record high82° (1991)

Record low38° (2011)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Acton, CA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Acton, CA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.