Monthly outlook for Acton, CA: average high 92.2°, average low 64.7°. That is 0.3° below the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 8 August (95.6°), the coolest 8 August (59.8°).
92.2°/64.7°
Average high / low
−0.3°
Below normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
91.2°
93.5°
-1.3°
18 August – 27 August
93.9°
91.8°
+1.2°
28 August – 6 September
at normal
92.8°
—
August records over 66 years
107.8°20 August 2020All-time high
51.1°22 August 1968All-time low
Climate normals and records are computed from the nearest reference point — Palmdale (8 mi).
Sun, 0992° / 67°0
92 °
Acton, Sunday, 9 August
Clear. High 92°, low 67°.
Pressure29.85 inHg
Wind11.7 mph SW
Humidity14%
Visibility6.2 mi
Dew point41°
Mon, 1095° / 67°0
95 °
Acton, Monday, 10 August
Overcast. High 95°, low 67°.
Pressure29.88 inHg
Wind12.1 mph SW
Humidity18%
Visibility6.2 mi
Dew point44°
Tue, 1192° / 68°0
92 °
Acton, Tuesday, 11 August
Overcast. High 92°, low 68°.
Pressure29.94 inHg
Wind9.9 mph SW
Humidity19%
Visibility6.2 mi
Dew point42°
Wed, 1290° / 66°0
90 °
Acton, Wednesday, 12 August
Mostly clear. High 90°, low 66°.
Pressure29.88 inHg
Wind13.3 mph SW
Humidity21%
Visibility—
Dew point39°
Thu, 1388° / 62°0
88 °
Acton, Thursday, 13 August
Overcast. High 88°, low 62°.
Pressure29.88 inHg
Wind13.7 mph SW
Humidity21%
Visibility—
Dew point36°
Fri, 1486° / 62°0
86 °
Acton, Friday, 14 August
Overcast. High 86°, low 62°.
Pressure29.94 inHg
Wind15.1 mph SW
Humidity25%
Visibility—
Dew point39°
Sat, 1590° / 60°0
90 °
Acton, Saturday, 15 August
Clear. High 90°, low 60°.
Pressure30.00 inHg
Wind14.2 mph SW
Humidity22%
Visibility—
Dew point39°
Sun, 1692° / 64°0
92 °
Acton, Sunday, 16 August
Partly cloudy. High 92°, low 64°.
Pressure30.00 inHg
Wind16.4 mph SW
Humidity19%
Visibility—
Dew point38°
Mon, 1792° / 64°0
92 °
Acton, Monday, 17 August
Partly cloudy. High 92°, low 64°.
Pressure30.03 inHg
Wind15 mph SW
Humidity19%
Visibility—
Dew point38°
Tue, 1894° / 64°0
94 °
Acton, Tuesday, 18 August
Clear. High 94°, low 64°.
Pressure29.97 inHg
Wind14.3 mph SW
Humidity17%
Visibility—
Dew point36°
Wed, 1995° / 66°0
95 °
Acton, Wednesday, 19 August
Overcast. High 95°, low 66°.
Pressure29.91 inHg
Wind13.8 mph SW
Humidity18%
Visibility—
Dew point38°
Thu, 2095° / 64°0
95 °
Acton, Thursday, 20 August
Clear. High 95°, low 64°.
Pressure29.88 inHg
Wind13.5 mph SW
Humidity18%
Visibility—
Dew point38°
Fri, 2195° / 66°0
95 °
Acton, Friday, 21 August
Partly cloudy. High 95°, low 66°.
Pressure29.88 inHg
Wind13.4 mph SW
Humidity21%
Visibility—
Dew point43°
Sat, 2292° / 68°0
92 °
Acton, Saturday, 22 August
Overcast. High 92°, low 68°.
Pressure29.88 inHg
Wind15.7 mph SW
Humidity24%
Visibility—
Dew point46°
Sun, 2393° / 68°0
93 °
Acton, Sunday, 23 August
Overcast. High 93°, low 68°.
Pressure29.91 inHg
Wind14.9 mph SW
Humidity17%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2492° / 66°0.02
92 °
Acton, Monday, 24 August
Climate normal for this date — 60-year average.
Average high92°
Average low66°
Average precipitation0.02 in
Chance of precipitation8%
Record high104° (2010)
Record low55° (2024)
Tue, 2592° / 67°0.03
92 °
Acton, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.03 in
Chance of precipitation12%
Record high103° (1985)
Record low57° (1960)
Wed, 2692° / 67°0.02
92 °
Acton, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.02 in
Chance of precipitation13%
Record high102° (2011)
Record low52° (1990)
Thu, 2793° / 67°0.01
93 °
Acton, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high93°
Average low67°
Average precipitation0.01 in
Chance of precipitation10%
Record high104° (2017)
Record low52° (1973)
Fri, 2894° / 68°0.02
94 °
Acton, Friday, 28 August
Climate normal for this date — 60-year average.
Average high94°
Average low68°
Average precipitation0.02 in
Chance of precipitation7%
Record high105° (2017)
Record low58° (1960)
Sat, 2994° / 69°0.02
94 °
Acton, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high94°
Average low69°
Average precipitation0.02 in
Chance of precipitation8%
Record high105° (2017)
Record low55° (1964)
Sun, 3093° / 68°0.02
93 °
Acton, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high93°
Average low68°
Average precipitation0.02 in
Chance of precipitation7%
Record high104° (2017)
Record low53° (2010)
Mon, 3192° / 67°0.01
92 °
Acton, Monday, 31 August
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.01 in
Chance of precipitation8%
Record high106° (2022)
Record low53° (1964)
Tue, 0193° / 66°0.02
93 °
Acton, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high93°
Average low66°
Average precipitation0.02 in
Chance of precipitation10%
Record high109° (2022)
Record low52° (1964)
Wed, 0293° / 67°0.05
93 °
Acton, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high93°
Average low67°
Average precipitation0.05 in
Chance of precipitation17%
Record high109° (2022)
Record low52° (1964)
Thu, 0392° / 67°0.02
92 °
Acton, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.02 in
Chance of precipitation15%
Record high107° (2022)
Record low53° (2000)
Fri, 0492° / 67°0.02
92 °
Acton, Friday, 4 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.02 in
Chance of precipitation8%
Record high106° (2020)
Record low53° (1985)
Sat, 0592° / 67°0.02
92 °
Acton, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.02 in
Chance of precipitation8%
Record high107° (2022)
Record low55° (1973)
Sun, 0692° / 67°0.03
92 °
Acton, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high92°
Average low67°
Average precipitation0.03 in
Chance of precipitation12%
Record high109° (2020)
Record low54° (1985)
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.