Monthly outlook for Whittier, CA: average high 77.5°, average low 64°. That is 0.5° above the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 28 October (86.1°), the coolest 24 October (53.3°).
77.5°/64°
Average high / low
+0.5°
Above normal
2 / 1
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
76.8°
77.1°
-0.2°
31 October – 9 November
78.7°
74.5°
+2.3°
10 November – 19 November
at normal
71.5°
—
October records over 66 years
104°4 October 1987All-time high
33.8°29 October 1971All-time low
Thu, 2266° / 57°0.63
66 °
Whittier, Thursday, 22 October
Heavy rain. High 66°, low 57°.
Pressure30.00 inHg
Wind0.8 mph W
Humidity72%
Visibility5.8 mi
Dew point56°
Fri, 2369° / 54°0
69 °
Whittier, Friday, 23 October
Partly cloudy. High 69°, low 54°.
Pressure29.97 inHg
Wind2 mph W
Humidity60%
Visibility6.2 mi
Dew point53°
Sat, 2472° / 53°0
72 °
Whittier, Saturday, 24 October
Clear. High 72°, low 53°.
Pressure29.97 inHg
Wind1.7 mph SW
Humidity67%
Visibility6.2 mi
Dew point58°
Sun, 2576° / 57°0
76 °
Whittier, Sunday, 25 October
Clear. High 76°, low 57°.
Pressure30.03 inHg
Wind1.6 mph NW
Humidity60%
Visibility6.2 mi
Dew point58°
Mon, 2680° / 59°0
80 °
Whittier, Monday, 26 October
Clear. High 80°, low 59°.
Pressure30.09 inHg
Wind4.8 mph NE
Humidity51%
Visibility—
Dew point53°
Tue, 2784° / 60°0
84 °
Whittier, Tuesday, 27 October
Partly cloudy. High 84°, low 60°.
Pressure30.03 inHg
Wind6.5 mph W
Humidity38%
Visibility—
Dew point47°
Wed, 2886° / 75°0
86 °
Whittier, Wednesday, 28 October
Overcast. High 86°, low 75°.
Pressure29.94 inHg
Wind6.8 mph W
Humidity17%
Visibility—
Dew point32°
Thu, 2983° / 73°0
83 °
Whittier, Thursday, 29 October
Overcast. High 83°, low 73°.
Pressure29.85 inHg
Wind7.1 mph SW
Humidity28%
Visibility—
Dew point42°
Fri, 3078° / 69°0
78 °
Whittier, Friday, 30 October
Overcast. High 78°, low 69°.
Pressure29.80 inHg
Wind9.3 mph S
Humidity50%
Visibility—
Dew point53°
Sat, 3169° / 66°0.01
69 °
Whittier, Saturday, 31 October
Light rain. High 69°, low 66°.
Pressure29.85 inHg
Wind9.1 mph S
Humidity60%
Visibility—
Dew point53°
Sun, 0175° / 65°0
75 °
Whittier, Sunday, 1 November
Clear. High 75°, low 65°.
Pressure30.03 inHg
Wind9.5 mph W
Humidity53%
Visibility—
Dew point51°
Mon, 0283° / 68°0
83 °
Whittier, Monday, 2 November
Clear. High 83°, low 68°.
Pressure30.09 inHg
Wind9.3 mph W
Humidity32%
Visibility—
Dew point43°
Tue, 0382° / 69°0
82 °
Whittier, Tuesday, 3 November
Clear. High 82°, low 69°.
Pressure30.09 inHg
Wind8.4 mph SW
Humidity36%
Visibility—
Dew point46°
Wed, 0481° / 69°0
81 °
Whittier, Wednesday, 4 November
Clear. High 81°, low 69°.
Pressure30.03 inHg
Wind7.6 mph SW
Humidity43%
Visibility—
Dew point51°
Thu, 0582° / 68°0
82 °
Whittier, Thursday, 5 November
Clear. High 82°, low 68°.
Pressure30.03 inHg
Wind9.2 mph SW
Humidity47%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 1572° / 49°0.06
72 °
Whittier, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high72°
Average low49°
Average precipitation0.06 in
Chance of precipitation7%
Record high88° (2008)
Record low34° (1964)
Mon, 1671° / 49°0.04
71 °
Whittier, Monday, 16 November
Climate normal for this date — 60-year average.
Average high71°
Average low49°
Average precipitation0.04 in
Chance of precipitation8%
Record high92° (2020)
Record low33° (1964)
Tue, 1770° / 49°0.04
70 °
Whittier, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high70°
Average low49°
Average precipitation0.04 in
Chance of precipitation13%
Record high91° (2019)
Record low37° (1994)
Wed, 1870° / 48°0.05
70 °
Whittier, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high70°
Average low48°
Average precipitation0.05 in
Chance of precipitation17%
Record high90° (2019)
Record low32° (1964)
Thu, 1971° / 47°0.05
71 °
Whittier, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high71°
Average low47°
Average precipitation0.05 in
Chance of precipitation7%
Record high87° (2006)
Record low31° (1994)
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.