Monthly outlook for Duarte, CA: average high 70.1°, average low 55.9°. That is 4.9° below the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 16 October (89.6°), the coolest 21 October (46.7°).
70.1°/55.9°
Average high / low
−4.9°
Below normal
3 / 1
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
72.7°
80°
-4.1°
26 October – 4 November
65.8°
77.2°
-6.3°
5 November – 14 November
at normal
73.6°
—
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).
Sat, 1788° / 68°0
88 °
Duarte, Saturday, 17 October
Overcast. High 88°, low 68°.
Pressure30.06 inHg
Wind2 mph S
Humidity25%
Visibility6.2 mi
Dew point40°
Sun, 1876° / 53°0
76 °
Duarte, Sunday, 18 October
Clear. High 76°, low 53°.
Pressure30.00 inHg
Wind5 mph S
Humidity22%
Visibility6.2 mi
Dew point35°
Mon, 1974° / 54°0
74 °
Duarte, Monday, 19 October
Clear. High 74°, low 54°.
Pressure29.94 inHg
Wind4.6 mph S
Humidity27%
Visibility6.2 mi
Dew point38°
Tue, 2064° / 50°0
64 °
Duarte, Tuesday, 20 October
Mostly clear. High 64°, low 50°.
Pressure29.91 inHg
Wind5.3 mph SE
Humidity48%
Visibility6.2 mi
Dew point44°
Wed, 2157° / 47°0.38
57 °
Duarte, Wednesday, 21 October
Rain. High 57°, low 47°.
Pressure29.88 inHg
Wind4.4 mph SE
Humidity56%
Visibility—
Dew point41°
Thu, 2261° / 49°0.02
61 °
Duarte, Thursday, 22 October
Light rain. High 61°, low 49°.
Pressure29.97 inHg
Wind5.5 mph S
Humidity73%
Visibility—
Dew point47°
Fri, 2368° / 56°0
68 °
Duarte, Friday, 23 October
Partly cloudy. High 68°, low 56°.
Pressure29.97 inHg
Wind8.1 mph S
Humidity49%
Visibility—
Dew point43°
Sat, 2473° / 55°0
73 °
Duarte, Saturday, 24 October
Clear. High 73°, low 55°.
Pressure30.00 inHg
Wind6.5 mph SW
Humidity34%
Visibility—
Dew point37°
Sun, 2576° / 61°0
76 °
Duarte, Sunday, 25 October
Overcast. High 76°, low 61°.
Pressure30.03 inHg
Wind6.9 mph N
Humidity21%
Visibility—
Dew point30°
Mon, 2671° / 56°0
71 °
Duarte, Monday, 26 October
Overcast. High 71°, low 56°.
Pressure29.85 inHg
Wind8.9 mph S
Humidity32%
Visibility—
Dew point37°
Tue, 2764° / 53°0
64 °
Duarte, Tuesday, 27 October
Overcast. High 64°, low 53°.
Pressure29.85 inHg
Wind6.8 mph S
Humidity59%
Visibility—
Dew point45°
Wed, 2867° / 54°0
67 °
Duarte, Wednesday, 28 October
Overcast. High 67°, low 54°.
Pressure30.03 inHg
Wind7 mph SW
Humidity60%
Visibility—
Dew point47°
Thu, 2966° / 59°0
66 °
Duarte, Thursday, 29 October
Overcast. High 66°, low 59°.
Pressure30.06 inHg
Wind5.8 mph S
Humidity50%
Visibility—
Dew point46°
Fri, 3063° / 57°0.07
63 °
Duarte, Friday, 30 October
Light rain. High 63°, low 57°.
Pressure30.09 inHg
Wind5.8 mph S
Humidity69%
Visibility—
Dew point49°
Sat, 3163° / 54°0.04
63 °
Duarte, Saturday, 31 October
Light rain. High 63°, low 54°.
Pressure30.00 inHg
Wind7.2 mph N
Humidity53%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0177° / 53°0.03
77 °
Duarte, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high77°
Average low53°
Average precipitation0.03 in
Chance of precipitation10%
Record high95° (1997)
Record low42° (1971)
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)
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.