Monthly outlook for Topanga, CA: average high 83.2°, average low 66.5°. That is 0.7° below the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 8 August (94°), the coolest 15 August (63.5°).
83.2°/66.5°
Average high / low
−0.7°
Below normal
0 / 0
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
84.3°
84.8°
-0.3°
18 August – 27 August
81.5°
84.7°
-1.8°
28 August – 6 September
at normal
86.5°
—
August records over 66 years
104.5°30 August 1967All-time high
55.4°22 August 1968All-time low
Climate normals and records are computed from the nearest reference point — Santa Monica (9 mi).
Sun, 0993° / 66°0
93 °
Topanga, Sunday, 9 August
Mostly clear. High 93°, low 66°.
Pressure29.85 inHg
Wind6.5 mph S
Humidity41%
Visibility3.1 mi
Dew point57°
Mon, 1088° / 67°0
88 °
Topanga, Monday, 10 August
Clear. High 88°, low 67°.
Pressure29.91 inHg
Wind6.6 mph S
Humidity43%
Visibility4.7 mi
Dew point57°
Tue, 1183° / 68°0
83 °
Topanga, Tuesday, 11 August
Partly cloudy. High 83°, low 68°.
Pressure29.94 inHg
Wind6.8 mph S
Humidity41%
Visibility6.2 mi
Dew point54°
Wed, 1279° / 66°0
79 °
Topanga, Wednesday, 12 August
Clear. High 79°, low 66°.
Pressure29.88 inHg
Wind8.1 mph S
Humidity48%
Visibility6.2 mi
Dew point57°
Thu, 1375° / 65°0
75 °
Topanga, Thursday, 13 August
Partly cloudy. High 75°, low 65°.
Pressure29.91 inHg
Wind8.1 mph S
Humidity56%
Visibility—
Dew point56°
Fri, 1476° / 64°0
76 °
Topanga, Friday, 14 August
Overcast. High 76°, low 64°.
Pressure29.97 inHg
Wind7.9 mph S
Humidity56%
Visibility—
Dew point55°
Sat, 1581° / 64°0
81 °
Topanga, Saturday, 15 August
Clear. High 81°, low 64°.
Pressure30.00 inHg
Wind8.6 mph SW
Humidity43%
Visibility—
Dew point52°
Sun, 1686° / 66°0
86 °
Topanga, Sunday, 16 August
Partly cloudy. High 86°, low 66°.
Pressure30.03 inHg
Wind8.9 mph SW
Humidity39%
Visibility—
Dew point51°
Mon, 1788° / 70°0
88 °
Topanga, Monday, 17 August
Mostly clear. High 88°, low 70°.
Pressure30.00 inHg
Wind11.5 mph W
Humidity32%
Visibility—
Dew point49°
Tue, 1887° / 70°0
87 °
Topanga, Tuesday, 18 August
Partly cloudy. High 87°, low 70°.
Pressure29.94 inHg
Wind8.7 mph W
Humidity41%
Visibility—
Dew point55°
Wed, 1984° / 70°0
84 °
Topanga, Wednesday, 19 August
Overcast. High 84°, low 70°.
Pressure29.91 inHg
Wind7.4 mph S
Humidity43%
Visibility—
Dew point56°
Thu, 2081° / 68°0
81 °
Topanga, Thursday, 20 August
Clear. High 81°, low 68°.
Pressure29.91 inHg
Wind7.6 mph SW
Humidity49%
Visibility—
Dew point58°
Fri, 2179° / 65°0
79 °
Topanga, Friday, 21 August
Clear. High 79°, low 65°.
Pressure29.91 inHg
Wind8.2 mph S
Humidity53%
Visibility—
Dew point57°
Sat, 2278° / 64°0
78 °
Topanga, Saturday, 22 August
Clear. High 78°, low 64°.
Pressure29.97 inHg
Wind7.7 mph SW
Humidity51%
Visibility—
Dew point55°
Sun, 2380° / 64°0
80 °
Topanga, Sunday, 23 August
Clear. High 80°, low 64°.
Pressure29.94 inHg
Wind7.9 mph SW
Humidity50%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2485° / 65°0
85 °
Topanga, Monday, 24 August
Climate normal for this date — 60-year average.
Average high85°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high99° (1985)
Record low58° (2024)
Tue, 2585° / 65°0
85 °
Topanga, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high101° (1985)
Record low59° (1978)
Wed, 2686° / 65°0
86 °
Topanga, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high86°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high101° (1981)
Record low57° (2024)
Thu, 2787° / 65°0
87 °
Topanga, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high100° (1981)
Record low56° (1973)
Fri, 2887° / 65°0
87 °
Topanga, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low65°
Average precipitation0 in
Chance of precipitation0%
Record high99° (1981)
Record low58° (2024)
Sat, 2987° / 66°0
87 °
Topanga, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high87°
Average low66°
Average precipitation0 in
Chance of precipitation0%
Record high103° (1967)
Record low57° (2024)
Sun, 3086° / 66°0
86 °
Topanga, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high86°
Average low66°
Average precipitation0 in
Chance of precipitation0%
Record high105° (1967)
Record low57° (2010)
Mon, 3185° / 65°0
85 °
Topanga, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low65°
Average precipitation0 in
Chance of precipitation2%
Record high104° (2017)
Record low58° (1966)
Tue, 0186° / 65°0
86 °
Topanga, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high86°
Average low65°
Average precipitation0 in
Chance of precipitation2%
Record high102° (1998)
Record low56° (1973)
Wed, 0286° / 66°0.01
86 °
Topanga, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high86°
Average low66°
Average precipitation0.01 in
Chance of precipitation5%
Record high103° (1982)
Record low53° (1964)
Thu, 0386° / 66°0
86 °
Topanga, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high86°
Average low66°
Average precipitation0 in
Chance of precipitation3%
Record high105° (1988)
Record low57° (1999)
Fri, 0487° / 66°0
87 °
Topanga, Friday, 4 September
Climate normal for this date — 60-year average.
Average high87°
Average low66°
Average precipitation0 in
Chance of precipitation3%
Record high109° (1988)
Record low58° (2021)
Sat, 0587° / 66°0.02
87 °
Topanga, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high87°
Average low66°
Average precipitation0.02 in
Chance of precipitation2%
Record high107° (2024)
Record low58° (1973)
Sun, 0687° / 66°0.01
87 °
Topanga, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high87°
Average low66°
Average precipitation0.01 in
Chance of precipitation3%
Record high108° (2024)
Record low57° (1970)
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 Topanga, 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 Topanga, 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.