Monthly outlook for Duarte, CA: average high 71.5°, average low 57.5°. That is 4° below the climate normal for October. Precipitation is expected on 3 days (about 1.2 inches), against a normal of 1 days and 0.4 inches. The warmest day looks like 18 October (86.4°), the coolest 22 October (47.8°).
71.5°/57.5°
Average high / low
−4°
Below normal
3 / 1
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
73.8°
79.8°
-3.4°
27 October – 5 November
67.7°
76.9°
-5.1°
6 November – 15 November
at normal
73.3°
—
October records over 66 years
106°4 October 1987All-time high
35.2°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — South Monrovia Island (4 mi).
Sun, 1886° / 70°0
86 °
Duarte, Sunday, 18 October
Clear. High 86°, low 70°.
Pressure30.00 inHg
Wind5.7 mph S
Humidity24%
Visibility6.2 mi
Dew point37°
Mon, 1974° / 54°0
74 °
Duarte, Monday, 19 October
Clear. High 74°, low 54°.
Pressure29.94 inHg
Wind4.7 mph S
Humidity25%
Visibility6.2 mi
Dew point37°
Tue, 2071° / 54°0
71 °
Duarte, Tuesday, 20 October
Clear. High 71°, low 54°.
Pressure29.91 inHg
Wind3.2 mph SE
Humidity24%
Visibility6.2 mi
Dew point33°
Wed, 2162° / 51°0.22
62 °
Duarte, Wednesday, 21 October
Rain. High 62°, low 51°.
Pressure29.91 inHg
Wind4.5 mph SE
Humidity55%
Visibility—
Dew point44°
Thu, 2261° / 48°0.07
61 °
Duarte, Thursday, 22 October
Light rain. High 61°, low 48°.
Pressure29.97 inHg
Wind5.1 mph NE
Humidity58%
Visibility—
Dew point43°
Fri, 2370° / 51°0
70 °
Duarte, Friday, 23 October
Overcast. High 70°, low 51°.
Pressure30.06 inHg
Wind7.3 mph S
Humidity59%
Visibility—
Dew point48°
Sat, 2478° / 61°0
78 °
Duarte, Saturday, 24 October
Clear. High 78°, low 61°.
Pressure30.00 inHg
Wind6.8 mph SW
Humidity29%
Visibility—
Dew point39°
Sun, 2572° / 62°0
72 °
Duarte, Sunday, 25 October
Overcast. High 72°, low 62°.
Pressure29.88 inHg
Wind7.6 mph S
Humidity45%
Visibility—
Dew point46°
Mon, 2678° / 60°0
78 °
Duarte, Monday, 26 October
Clear. High 78°, low 60°.
Pressure29.80 inHg
Wind7.1 mph N
Humidity37%
Visibility—
Dew point44°
Tue, 2777° / 64°0
77 °
Duarte, Tuesday, 27 October
Mostly clear. High 77°, low 64°.
Pressure29.88 inHg
Wind7.4 mph S
Humidity19%
Visibility—
Dew point29°
Wed, 2872° / 61°0
72 °
Duarte, Wednesday, 28 October
Overcast. High 72°, low 61°.
Pressure30.03 inHg
Wind7.9 mph S
Humidity55%
Visibility—
Dew point51°
Thu, 2965° / 56°0.03
65 °
Duarte, Thursday, 29 October
Light rain. High 65°, low 56°.
Pressure29.97 inHg
Wind9.4 mph N
Humidity74%
Visibility—
Dew point55°
Fri, 3068° / 53°0
68 °
Duarte, Friday, 30 October
Partly cloudy. High 68°, low 53°.
Pressure29.91 inHg
Wind8.3 mph N
Humidity19%
Visibility—
Dew point20°
Sat, 3165° / 56°0
65 °
Duarte, Saturday, 31 October
Overcast. High 65°, low 56°.
Pressure29.91 inHg
Wind7.7 mph S
Humidity37%
Visibility—
Dew point35°
Sun, 0158° / 52°0.92
58 °
Duarte, Sunday, 1 November
Rain. High 58°, low 52°.
Pressure29.85 inHg
Wind11.5 mph SW
Humidity75%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0277° / 53°0.02
77 °
Duarte, Monday, 2 November
Climate normal for this date — 60-year average.
Average high77°
Average low53°
Average precipitation0.02 in
Chance of precipitation13%
Record high96° (1997)
Record low45° (1974)
Tue, 0378° / 52°0
78 °
Duarte, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high78°
Average low52°
Average precipitation0 in
Chance of precipitation3%
Record high95° (1976)
Record low43° (1990)
Wed, 0477° / 53°0.02
77 °
Duarte, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high77°
Average low53°
Average precipitation0.02 in
Chance of precipitation5%
Record high95° (1976)
Record low39° (1994)
Thu, 0576° / 52°0.01
76 °
Duarte, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high76°
Average low52°
Average precipitation0.01 in
Chance of precipitation3%
Record high96° (2020)
Record low42° (2011)
Fri, 0674° / 52°0.02
74 °
Duarte, Friday, 6 November
Climate normal for this date — 60-year average.
Average high74°
Average low52°
Average precipitation0.02 in
Chance of precipitation8%
Record high93° (2006)
Record low42° (2011)
Sat, 0773° / 52°0.06
73 °
Duarte, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high73°
Average low52°
Average precipitation0.06 in
Chance of precipitation8%
Record high93° (2006)
Record low39° (2011)
Sun, 0874° / 52°0.08
74 °
Duarte, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high74°
Average low52°
Average precipitation0.08 in
Chance of precipitation20%
Record high92° (2016)
Record low40° (2011)
Mon, 0973° / 51°0.04
73 °
Duarte, Monday, 9 November
Climate normal for this date — 60-year average.
Average high73°
Average low51°
Average precipitation0.04 in
Chance of precipitation15%
Record high94° (2016)
Record low39° (2020)
Tue, 1073° / 51°0.03
73 °
Duarte, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high73°
Average low51°
Average precipitation0.03 in
Chance of precipitation10%
Record high92° (1990)
Record low40° (2022)
Wed, 1173° / 50°0.05
73 °
Duarte, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high73°
Average low50°
Average precipitation0.05 in
Chance of precipitation10%
Record high91° (2021)
Record low39° (2000)
Thu, 1273° / 50°0.03
73 °
Duarte, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high73°
Average low50°
Average precipitation0.03 in
Chance of precipitation10%
Record high94° (2021)
Record low34° (1978)
Fri, 1374° / 50°0.03
74 °
Duarte, Friday, 13 November
Climate normal for this date — 60-year average.
Average high74°
Average low50°
Average precipitation0.03 in
Chance of precipitation10%
Record high92° (2013)
Record low37° (1985)
Sat, 1473° / 50°0.05
73 °
Duarte, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high73°
Average low50°
Average precipitation0.05 in
Chance of precipitation8%
Record high91° (2021)
Record low36° (1964)
Sun, 1573° / 49°0.07
73 °
Duarte, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high73°
Average low49°
Average precipitation0.07 in
Chance of precipitation7%
Record high89° (2008)
Record low35° (1964)
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 Duarte, 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 Duarte, 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.