Monthly outlook for Walnut Heights, CA: average high 69.3°, average low 54.8°. That is 0.3° below the climate normal for October. Precipitation is expected on 3 days (about 1.8 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 29 October (74°), the coolest 27 October (45.5°).
69.3°/54.8°
Average high / low
−0.3°
Below normal
3 / 2
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
69.8°
70.6°
-0.4°
1 November – 10 November
68.3°
67.4°
+0.5°
11 November – 20 November
at normal
63.4°
—
October records over 66 years
104.2°2 October 2024All-time high
41.2°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Saranap (2 mi).
Fri, 2367° / 51°0
67 °
Walnut Heights, Friday, 23 October
Light rain. High 67°, low 51°.
Pressure30.06 inHg
Wind7.2 mph NE
Humidity75%
Visibility6.2 mi
Dew point54°
Sat, 2472° / 53°0
72 °
Walnut Heights, Saturday, 24 October
Clear. High 72°, low 53°.
Pressure30.03 inHg
Wind7.4 mph NE
Humidity36%
Visibility6.2 mi
Dew point38°
Sun, 2573° / 50°0
73 °
Walnut Heights, Sunday, 25 October
Partly cloudy. High 73°, low 50°.
Pressure30.06 inHg
Wind3 mph NE
Humidity54%
Visibility—
Dew point49°
Mon, 2668° / 54°0
68 °
Walnut Heights, Monday, 26 October
Partly cloudy. High 68°, low 54°.
Pressure30.12 inHg
Wind7.7 mph SW
Humidity73%
Visibility—
Dew point53°
Tue, 2767° / 46°0
67 °
Walnut Heights, Tuesday, 27 October
Clear. High 67°, low 46°.
Pressure30.09 inHg
Wind4.7 mph S
Humidity71%
Visibility—
Dew point49°
Wed, 2872° / 53°0
72 °
Walnut Heights, Wednesday, 28 October
Clear. High 72°, low 53°.
Pressure30.00 inHg
Wind3.5 mph S
Humidity35%
Visibility—
Dew point35°
Thu, 2974° / 56°0
74 °
Walnut Heights, Thursday, 29 October
Partly cloudy. High 74°, low 56°.
Pressure29.94 inHg
Wind3.7 mph W
Humidity27%
Visibility—
Dew point30°
Fri, 3070° / 55°0
70 °
Walnut Heights, Friday, 30 October
Overcast. High 70°, low 55°.
Pressure29.94 inHg
Wind6.7 mph W
Humidity51%
Visibility—
Dew point45°
Sat, 3171° / 53°0
71 °
Walnut Heights, Saturday, 31 October
Clear. High 71°, low 53°.
Pressure29.91 inHg
Wind4.1 mph SW
Humidity54%
Visibility—
Dew point45°
Sun, 0166° / 57°0.08
66 °
Walnut Heights, Sunday, 1 November
Light rain. High 66°, low 57°.
Pressure29.77 inHg
Wind9.6 mph E
Humidity44%
Visibility—
Dew point39°
Mon, 0270° / 58°0
70 °
Walnut Heights, Monday, 2 November
Overcast. High 70°, low 58°.
Pressure29.91 inHg
Wind6 mph E
Humidity63%
Visibility—
Dew point52°
Tue, 0369° / 62°0
69 °
Walnut Heights, Tuesday, 3 November
Overcast. High 69°, low 62°.
Pressure30.09 inHg
Wind6.2 mph W
Humidity65%
Visibility—
Dew point56°
Wed, 0474° / 59°0
74 °
Walnut Heights, Wednesday, 4 November
Partly cloudy. High 74°, low 59°.
Pressure30.09 inHg
Wind3.4 mph W
Humidity63%
Visibility—
Dew point55°
Thu, 0571° / 60°0
71 °
Walnut Heights, Thursday, 5 November
Overcast. High 71°, low 60°.
Pressure30.03 inHg
Wind7.1 mph W
Humidity66%
Visibility—
Dew point54°
Fri, 0660° / 57°1.39
60 °
Walnut Heights, Friday, 6 November
Heavy rain. High 60°, low 57°.
Pressure29.94 inHg
Wind4.6 mph S
Humidity93%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0767° / 50°0.06
67 °
Walnut Heights, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high67°
Average low50°
Average precipitation0.06 in
Chance of precipitation17%
Record high79° (1991)
Record low40° (1971)
Sun, 0865° / 49°0.06
65 °
Walnut Heights, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.06 in
Chance of precipitation18%
Record high79° (1978)
Record low42° (2011)
Mon, 0965° / 48°0.08
65 °
Walnut Heights, Monday, 9 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.08 in
Chance of precipitation20%
Record high78° (1990)
Record low36° (2020)
Tue, 1065° / 49°0.12
65 °
Walnut Heights, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.12 in
Chance of precipitation30%
Record high80° (2025)
Record low38° (2020)
Wed, 1164° / 49°0.09
64 °
Walnut Heights, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.09 in
Chance of precipitation27%
Record high79° (2019)
Record low38° (2000)
Thu, 1265° / 48°0.07
65 °
Walnut Heights, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.07 in
Chance of precipitation17%
Record high78° (2019)
Record low38° (1985)
Fri, 1364° / 48°0.13
64 °
Walnut Heights, Friday, 13 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.13 in
Chance of precipitation30%
Record high80° (1995)
Record low34° (2000)
Sat, 1464° / 48°0.06
64 °
Walnut Heights, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.06 in
Chance of precipitation25%
Record high79° (2008)
Record low37° (1994)
Sun, 1564° / 48°0.06
64 °
Walnut Heights, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.06 in
Chance of precipitation20%
Record high78° (2010)
Record low38° (2000)
Mon, 1664° / 49°0.08
64 °
Walnut Heights, Monday, 16 November
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.08 in
Chance of precipitation25%
Record high75° (2019)
Record low39° (1964)
Tue, 1763° / 48°0.11
63 °
Walnut Heights, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high63°
Average low48°
Average precipitation0.11 in
Chance of precipitation25%
Record high75° (1989)
Record low35° (1964)
Wed, 1862° / 47°0.07
62 °
Walnut Heights, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high62°
Average low47°
Average precipitation0.07 in
Chance of precipitation15%
Record high77° (2019)
Record low37° (1985)
Thu, 1962° / 46°0.05
62 °
Walnut Heights, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.05 in
Chance of precipitation23%
Record high73° (1989)
Record low33° (1964)
Fri, 2062° / 47°0.09
62 °
Walnut Heights, Friday, 20 November
Climate normal for this date — 60-year average.
Average high62°
Average low47°
Average precipitation0.09 in
Chance of precipitation28%
Record high74° (1989)
Record low34° (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 Walnut Heights, 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 Walnut Heights, 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.