Monthly outlook for Three Arch Bay, CA: average high 66.1°, average low 58.4°. That is 0.9° below the climate normal for November. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 14 November (70.3°), the coolest 18 November (47°).
66.1°/58.4°
Average high / low
−0.9°
Below normal
4 / 2
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
65.9°
68.2°
-1.3°
23 November – 2 December
66.3°
66.4°
-0°
3 December – 12 December
at normal
64.4°
—
November records over 66 years
93.2°1 November 1966All-time high
38.5°25 November 1973All-time low
Climate normals and records are computed from the nearest reference point — Aliso Viejo (6 mi).
Sat, 1470° / 57°0.18
70 °
Three Arch Bay, Saturday, 14 November
Rain. High 70°, low 57°.
Pressure29.91 inHg
Wind5 mph SW
Humidity55%
Visibility6.2 mi
Dew point54°
Sun, 1570° / 55°0
70 °
Three Arch Bay, Sunday, 15 November
Partly cloudy. High 70°, low 55°.
Pressure30.06 inHg
Wind3.6 mph SW
Humidity64%
Visibility6.2 mi
Dew point57°
Mon, 1669° / 58°0.12
69 °
Three Arch Bay, Monday, 16 November
Light rain. High 69°, low 58°.
Pressure30.03 inHg
Wind4.6 mph NW
Humidity68%
Visibility6.2 mi
Dew point57°
Tue, 1764° / 52°0.03
64 °
Three Arch Bay, Tuesday, 17 November
Light rain. High 64°, low 52°.
Pressure29.97 inHg
Wind9.4 mph W
Humidity56%
Visibility—
Dew point45°
Wed, 1866° / 47°0
66 °
Three Arch Bay, Wednesday, 18 November
Overcast. High 66°, low 47°.
Pressure30.15 inHg
Wind4.5 mph NE
Humidity48%
Visibility—
Dew point41°
Thu, 1964° / 60°0.45
64 °
Three Arch Bay, Thursday, 19 November
Rain. High 64°, low 60°.
Pressure29.97 inHg
Wind24.9 mph SW
Humidity68%
Visibility—
Dew point53°
Fri, 2061° / 56°0
61 °
Three Arch Bay, Friday, 20 November
Clear. High 61°, low 56°.
Pressure30.00 inHg
Wind20.3 mph NW
Humidity41%
Visibility—
Dew point34°
Sat, 2162° / 58°0
62 °
Three Arch Bay, Saturday, 21 November
Overcast. High 62°, low 58°.
Pressure30.06 inHg
Wind8.8 mph E
Humidity45%
Visibility—
Dew point39°
Sun, 2264° / 59°0
64 °
Three Arch Bay, Sunday, 22 November
Clear. High 64°, low 59°.
Pressure30.09 inHg
Wind7.1 mph W
Humidity39%
Visibility—
Dew point37°
Mon, 2365° / 62°0
65 °
Three Arch Bay, Monday, 23 November
Overcast. High 65°, low 62°.
Pressure30.03 inHg
Wind5.1 mph W
Humidity38%
Visibility—
Dew point38°
Tue, 2467° / 62°0
67 °
Three Arch Bay, Tuesday, 24 November
Partly cloudy. High 67°, low 62°.
Pressure30.00 inHg
Wind6.4 mph W
Humidity33%
Visibility—
Dew point35°
Wed, 2566° / 64°0.02
66 °
Three Arch Bay, Wednesday, 25 November
Light rain. High 66°, low 64°.
Pressure30.06 inHg
Wind6 mph S
Humidity49%
Visibility—
Dew point46°
Thu, 2667° / 61°0.01
67 °
Three Arch Bay, Thursday, 26 November
Light rain. High 67°, low 61°.
Pressure30.09 inHg
Wind10.6 mph NW
Humidity57%
Visibility—
Dew point49°
Fri, 2767° / 63°0
67 °
Three Arch Bay, Friday, 27 November
Partly cloudy. High 67°, low 63°.
Pressure30.12 inHg
Wind6.4 mph W
Humidity47%
Visibility—
Dew point45°
Sat, 2866° / 64°0
66 °
Three Arch Bay, Saturday, 28 November
Overcast. High 66°, low 64°.
Pressure30.06 inHg
Wind6.9 mph E
Humidity62%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2965° / 49°0.11
65 °
Three Arch Bay, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.11 in
Chance of precipitation20%
Record high81° (1977)
Record low39° (2010)
Mon, 3065° / 49°0.07
65 °
Three Arch Bay, Monday, 30 November
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.07 in
Chance of precipitation20%
Record high79° (1977)
Record low40° (1975)
Tue, 0165° / 48°0.02
65 °
Three Arch Bay, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.02 in
Chance of precipitation8%
Record high79° (1976)
Record low39° (2004)
Wed, 0265° / 48°0.02
65 °
Three Arch Bay, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.02 in
Chance of precipitation7%
Record high78° (1969)
Record low40° (2004)
Thu, 0365° / 49°0.04
65 °
Three Arch Bay, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.04 in
Chance of precipitation10%
Record high77° (1989)
Record low42° (2004)
Fri, 0465° / 48°0.07
65 °
Three Arch Bay, Friday, 4 December
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.07 in
Chance of precipitation12%
Record high80° (1979)
Record low41° (2004)
Sat, 0565° / 48°0.06
65 °
Three Arch Bay, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.06 in
Chance of precipitation13%
Record high83° (1979)
Record low40° (2011)
Sun, 0665° / 49°0.11
65 °
Three Arch Bay, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.11 in
Chance of precipitation15%
Record high80° (1979)
Record low41° (2004)
Mon, 0765° / 49°0.09
65 °
Three Arch Bay, Monday, 7 December
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.09 in
Chance of precipitation25%
Record high78° (2017)
Record low36° (1978)
Tue, 0864° / 48°0.03
64 °
Three Arch Bay, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.03 in
Chance of precipitation15%
Record high80° (1975)
Record low34° (1978)
Wed, 0964° / 47°0.02
64 °
Three Arch Bay, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.02 in
Chance of precipitation15%
Record high79° (2017)
Record low35° (1978)
Thu, 1064° / 47°0.02
64 °
Three Arch Bay, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.02 in
Chance of precipitation10%
Record high84° (2017)
Record low40° (1985)
Fri, 1163° / 48°0.06
63 °
Three Arch Bay, Friday, 11 December
Climate normal for this date — 60-year average.
Average high63°
Average low48°
Average precipitation0.06 in
Chance of precipitation17%
Record high76° (2017)
Record low40° (1972)
Sat, 1262° / 47°0.05
62 °
Three Arch Bay, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high62°
Average low47°
Average precipitation0.05 in
Chance of precipitation13%
Record high79° (2010)
Record low36° (1972)
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 Three Arch Bay, 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 Three Arch Bay, 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.