Monthly outlook for Whittier, CA: average high 77.2°, average low 65.2°. That is 0.3° below the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 16 October (93°), the coolest 21 October (59.7°).
77.2°/65.2°
Average high / low
−0.3°
Below normal
3 / 1
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
79.8°
78.7°
+0.6°
26 October – 4 November
72.8°
76.1°
-1.8°
5 November – 14 November
at normal
72.6°
—
October records over 66 years
104°4 October 1987All-time high
33.8°29 October 1971All-time low
Sat, 1792° / 72°0
92 °
Whittier, Saturday, 17 October
Overcast. High 92°, low 72°.
Pressure30.00 inHg
Wind2.3 mph NW
Humidity15%
Visibility6.2 mi
Dew point36°
Sun, 1889° / 66°0
89 °
Whittier, Sunday, 18 October
Clear. High 89°, low 66°.
Pressure29.94 inHg
Wind2.5 mph SW
Humidity15%
Visibility6.2 mi
Dew point35°
Mon, 1985° / 63°0
85 °
Whittier, Monday, 19 October
Clear. High 85°, low 63°.
Pressure29.88 inHg
Wind4.1 mph S
Humidity27%
Visibility6.2 mi
Dew point46°
Tue, 2075° / 62°0
75 °
Whittier, Tuesday, 20 October
Mostly clear. High 75°, low 62°.
Pressure29.88 inHg
Wind6.8 mph S
Humidity56%
Visibility—
Dew point53°
Wed, 2171° / 60°0.54
71 °
Whittier, Wednesday, 21 October
Rain. High 71°, low 60°.
Pressure29.94 inHg
Wind5.1 mph E
Humidity54%
Visibility—
Dew point50°
Thu, 2273° / 63°0.2
73 °
Whittier, Thursday, 22 October
Light rain. High 73°, low 63°.
Pressure29.94 inHg
Wind13.1 mph SW
Humidity47%
Visibility—
Dew point47°
Fri, 2371° / 65°0
71 °
Whittier, Friday, 23 October
Clear. High 71°, low 65°.
Pressure30.00 inHg
Wind10.2 mph SW
Humidity52%
Visibility—
Dew point51°
Sat, 2472° / 63°0
72 °
Whittier, Saturday, 24 October
Clear. High 72°, low 63°.
Pressure30.00 inHg
Wind10.9 mph SW
Humidity50%
Visibility—
Dew point48°
Sun, 2577° / 65°0
77 °
Whittier, Sunday, 25 October
Clear. High 77°, low 65°.
Pressure30.00 inHg
Wind8.6 mph W
Humidity43%
Visibility—
Dew point47°
Mon, 2675° / 67°0
75 °
Whittier, Monday, 26 October
Overcast. High 75°, low 67°.
Pressure29.80 inHg
Wind9.9 mph S
Humidity48%
Visibility—
Dew point50°
Tue, 2774° / 65°0
74 °
Whittier, Tuesday, 27 October
Clear. High 74°, low 65°.
Pressure29.80 inHg
Wind10.7 mph SW
Humidity38%
Visibility—
Dew point42°
Wed, 2874° / 66°0
74 °
Whittier, Wednesday, 28 October
Clear. High 74°, low 66°.
Pressure29.97 inHg
Wind9.9 mph SW
Humidity51%
Visibility—
Dew point51°
Thu, 2970° / 65°0.11
70 °
Whittier, Thursday, 29 October
Light rain. High 70°, low 65°.
Pressure29.85 inHg
Wind9.7 mph W
Humidity56%
Visibility—
Dew point52°
Fri, 3071° / 62°0
71 °
Whittier, Friday, 30 October
Clear. High 71°, low 62°.
Pressure29.97 inHg
Wind9.4 mph SW
Humidity53%
Visibility—
Dew point48°
Sat, 3172° / 64°0
72 °
Whittier, Saturday, 31 October
Clear. High 72°, low 64°.
Pressure30.06 inHg
Wind10.7 mph SW
Humidity52%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0176° / 52°0.03
76 °
Whittier, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high76°
Average low52°
Average precipitation0.03 in
Chance of precipitation10%
Record high94° (1997)
Record low41° (1971)
Mon, 0276° / 52°0.01
76 °
Whittier, Monday, 2 November
Climate normal for this date — 60-year average.
Average high76°
Average low52°
Average precipitation0.01 in
Chance of precipitation13%
Record high94° (1997)
Record low44° (1971)
Tue, 0377° / 51°0
77 °
Whittier, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high77°
Average low51°
Average precipitation0 in
Chance of precipitation3%
Record high93° (2010)
Record low40° (1990)
Wed, 0476° / 52°0.02
76 °
Whittier, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high76°
Average low52°
Average precipitation0.02 in
Chance of precipitation5%
Record high94° (1976)
Record low37° (1994)
Thu, 0574° / 51°0.01
74 °
Whittier, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high74°
Average low51°
Average precipitation0.01 in
Chance of precipitation3%
Record high96° (2020)
Record low40° (2011)
Fri, 0673° / 52°0.02
73 °
Whittier, Friday, 6 November
Climate normal for this date — 60-year average.
Average high73°
Average low52°
Average precipitation0.02 in
Chance of precipitation8%
Record high92° (2006)
Record low41° (2011)
Sat, 0772° / 51°0.06
72 °
Whittier, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high72°
Average low51°
Average precipitation0.06 in
Chance of precipitation8%
Record high91° (2006)
Record low37° (2011)
Sun, 0873° / 51°0.08
73 °
Whittier, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high73°
Average low51°
Average precipitation0.08 in
Chance of precipitation18%
Record high91° (2016)
Record low38° (2011)
Mon, 0972° / 50°0.04
72 °
Whittier, Monday, 9 November
Climate normal for this date — 60-year average.
Average high72°
Average low50°
Average precipitation0.04 in
Chance of precipitation15%
Record high92° (2016)
Record low40° (2020)
Tue, 1072° / 50°0.03
72 °
Whittier, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high72°
Average low50°
Average precipitation0.03 in
Chance of precipitation10%
Record high91° (1990)
Record low41° (1998)
Wed, 1172° / 49°0.05
72 °
Whittier, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high72°
Average low49°
Average precipitation0.05 in
Chance of precipitation10%
Record high90° (2021)
Record low37° (2012)
Thu, 1273° / 50°0.03
73 °
Whittier, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high73°
Average low50°
Average precipitation0.03 in
Chance of precipitation10%
Record high93° (2021)
Record low35° (1978)
Fri, 1373° / 49°0.03
73 °
Whittier, Friday, 13 November
Climate normal for this date — 60-year average.
Average high73°
Average low49°
Average precipitation0.03 in
Chance of precipitation10%
Record high92° (2021)
Record low36° (2000)
Sat, 1472° / 49°0.04
72 °
Whittier, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high72°
Average low49°
Average precipitation0.04 in
Chance of precipitation8%
Record high92° (2021)
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 Whittier, 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 Whittier, 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.