Monthly outlook for Willowbrook, CA: average high 79.7°, average low 67°. That is 1° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 17 October (93.8°), the coolest 14 October (53.9°).
79.7°/67°
Average high / low
+1°
Above normal
2 / 1
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
82.8°
78.3°
+2.5°
19 October – 28 October
74.6°
76.8°
-1.2°
29 October – 7 November
at normal
74.4°
—
October records over 66 years
103.5°24 October 2017All-time high
35.6°30 October 1971All-time low
Sat, 1085° / 65°0.01
85 °
Willowbrook, Saturday, 10 October
Light rain. High 85°, low 65°.
Pressure29.65 inHg
Wind1.3 mph S
Humidity55%
Visibility6.2 mi
Dew point60°
Sun, 1175° / 64°0.17
75 °
Willowbrook, Sunday, 11 October
Light rain. High 75°, low 64°.
Pressure29.56 inHg
Wind13 mph SW
Humidity77%
Visibility2.3 mi
Dew point61°
Mon, 1269° / 60°0.08
69 °
Willowbrook, Monday, 12 October
Light rain. High 69°, low 60°.
Pressure29.88 inHg
Wind5.2 mph SW
Humidity58%
Visibility6.2 mi
Dew point51°
Tue, 1371° / 54°0
71 °
Willowbrook, Tuesday, 13 October
Clear. High 71°, low 54°.
Pressure30.03 inHg
Wind7 mph SW
Humidity54%
Visibility—
Dew point49°
Wed, 1482° / 54°0
82 °
Willowbrook, Wednesday, 14 October
Clear. High 82°, low 54°.
Pressure30.06 inHg
Wind7 mph W
Humidity41%
Visibility—
Dew point45°
Thu, 1581° / 69°0
81 °
Willowbrook, Thursday, 15 October
Clear. High 81°, low 69°.
Pressure30.03 inHg
Wind10.9 mph W
Humidity37%
Visibility—
Dew point47°
Fri, 1691° / 76°0
91 °
Willowbrook, Friday, 16 October
Clear. High 91°, low 76°.
Pressure30.03 inHg
Wind8.6 mph SW
Humidity19%
Visibility—
Dew point37°
Sat, 1794° / 77°0
94 °
Willowbrook, Saturday, 17 October
Clear. High 94°, low 77°.
Pressure30.00 inHg
Wind9.1 mph W
Humidity12%
Visibility—
Dew point27°
Sun, 1891° / 79°0
91 °
Willowbrook, Sunday, 18 October
Clear. High 91°, low 79°.
Pressure29.91 inHg
Wind10.4 mph W
Humidity17%
Visibility—
Dew point36°
Mon, 1986° / 76°0
86 °
Willowbrook, Monday, 19 October
Clear. High 86°, low 76°.
Pressure29.91 inHg
Wind9.6 mph W
Humidity28%
Visibility—
Dew point46°
Tue, 2079° / 70°0
79 °
Willowbrook, Tuesday, 20 October
Clear. High 79°, low 70°.
Pressure29.91 inHg
Wind9.8 mph S
Humidity46%
Visibility—
Dew point53°
Wed, 2170° / 65°0
70 °
Willowbrook, Wednesday, 21 October
Partly cloudy. High 70°, low 65°.
Pressure29.94 inHg
Wind10.6 mph S
Humidity48%
Visibility—
Dew point47°
Thu, 2270° / 65°0
70 °
Willowbrook, Thursday, 22 October
Overcast. High 70°, low 65°.
Pressure29.97 inHg
Wind12.5 mph W
Humidity48%
Visibility—
Dew point47°
Fri, 2370° / 65°0.01
70 °
Willowbrook, Friday, 23 October
Light rain. High 70°, low 65°.
Pressure29.97 inHg
Wind11.1 mph W
Humidity45%
Visibility—
Dew point45°
Sat, 2472° / 65°0
72 °
Willowbrook, Saturday, 24 October
Partly cloudy. High 72°, low 65°.
Pressure29.97 inHg
Wind12.4 mph W
Humidity48%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2577° / 57°0.01
77 °
Willowbrook, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high77°
Average low57°
Average precipitation0.01 in
Chance of precipitation5%
Record high100° (2017)
Record low45° (1975)
Mon, 2676° / 55°0.01
76 °
Willowbrook, Monday, 26 October
Climate normal for this date — 60-year average.
Average high76°
Average low55°
Average precipitation0.01 in
Chance of precipitation7%
Record high92° (1993)
Record low45° (1989)
Tue, 2776° / 55°0.04
76 °
Willowbrook, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high76°
Average low55°
Average precipitation0.04 in
Chance of precipitation8%
Record high92° (1973)
Record low46° (1970)
Wed, 2875° / 55°0.02
75 °
Willowbrook, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high75°
Average low55°
Average precipitation0.02 in
Chance of precipitation10%
Record high92° (1965)
Record low41° (1970)
Thu, 2975° / 54°0.01
75 °
Willowbrook, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high75°
Average low54°
Average precipitation0.01 in
Chance of precipitation3%
Record high94° (2025)
Record low37° (1971)
Fri, 3074° / 54°0.04
74 °
Willowbrook, Friday, 30 October
Climate normal for this date — 60-year average.
Average high74°
Average low54°
Average precipitation0.04 in
Chance of precipitation13%
Record high92° (1962)
Record low36° (1971)
Sat, 3175° / 53°0.02
75 °
Willowbrook, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high75°
Average low53°
Average precipitation0.02 in
Chance of precipitation5%
Record high91° (1967)
Record low41° (1991)
Sun, 0176° / 53°0.04
76 °
Willowbrook, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high76°
Average low53°
Average precipitation0.04 in
Chance of precipitation10%
Record high94° (1966)
Record low41° (1971)
Mon, 0276° / 53°0.01
76 °
Willowbrook, Monday, 2 November
Climate normal for this date — 60-year average.
Average high76°
Average low53°
Average precipitation0.01 in
Chance of precipitation7%
Record high95° (1997)
Record low43° (1971)
Tue, 0376° / 52°0
76 °
Willowbrook, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high76°
Average low52°
Average precipitation0 in
Chance of precipitation2%
Record high93° (2010)
Record low42° (1990)
Wed, 0474° / 53°0.02
74 °
Willowbrook, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high74°
Average low53°
Average precipitation0.02 in
Chance of precipitation7%
Record high95° (1976)
Record low38° (1994)
Thu, 0573° / 53°0
73 °
Willowbrook, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high73°
Average low53°
Average precipitation0 in
Chance of precipitation2%
Record high95° (2020)
Record low43° (2011)
Fri, 0673° / 53°0.02
73 °
Willowbrook, Friday, 6 November
Climate normal for this date — 60-year average.
Average high73°
Average low53°
Average precipitation0.02 in
Chance of precipitation7%
Record high91° (2006)
Record low44° (2011)
Sat, 0772° / 53°0.06
72 °
Willowbrook, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high72°
Average low53°
Average precipitation0.06 in
Chance of precipitation10%
Record high90° (2006)
Record low40° (2011)
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 Willowbrook, 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 Willowbrook, 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.