Monthly outlook for Heather Glen, CA: average high 68.4°, average low 50.3°. That is 0.7° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 3 days and 2.0 inches. The warmest day looks like 27 October (77°), the coolest 25 October (45.5°).
68.4°/50.3°
Average high / low
+0.7°
Above normal
4 / 3
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
71.1°
68.4°
+1.5°
29 October – 7 November
63.7°
64°
-0.1°
8 November – 17 November
at normal
59°
—
October records over 66 years
98.4°1 October 2024All-time high
28.6°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Foresthill (8 mi).
Tue, 2075° / 52°0
75 °
Heather Glen, Tuesday, 20 October
Overcast. High 75°, low 52°.
Pressure29.91 inHg
Wind3.2 mph SW
Humidity33%
Visibility6.2 mi
Dew point39°
Wed, 2170° / 55°0.09
70 °
Heather Glen, Wednesday, 21 October
Light rain. High 70°, low 55°.
Pressure29.88 inHg
Wind7 mph S
Humidity37%
Visibility6.2 mi
Dew point43°
Thu, 2263° / 48°0.46
63 °
Heather Glen, Thursday, 22 October
Heavy rain. High 63°, low 48°.
Pressure29.88 inHg
Wind4.8 mph S
Humidity64%
Visibility2.2 mi
Dew point50°
Fri, 2364° / 51°0.1
64 °
Heather Glen, Friday, 23 October
Light rain. High 64°, low 51°.
Pressure30.06 inHg
Wind5 mph NW
Humidity78%
Visibility6.2 mi
Dew point51°
Sat, 2468° / 48°0
68 °
Heather Glen, Saturday, 24 October
Clear. High 68°, low 48°.
Pressure30.00 inHg
Wind9.3 mph NE
Humidity36%
Visibility—
Dew point37°
Sun, 2574° / 45°0
74 °
Heather Glen, Sunday, 25 October
Overcast. High 74°, low 45°.
Pressure30.09 inHg
Wind6.2 mph NE
Humidity30%
Visibility—
Dew point34°
Mon, 2676° / 55°0
76 °
Heather Glen, Monday, 26 October
Overcast. High 76°, low 55°.
Pressure30.03 inHg
Wind7 mph NE
Humidity20%
Visibility—
Dew point27°
Tue, 2777° / 54°0
77 °
Heather Glen, Tuesday, 27 October
Overcast. High 77°, low 54°.
Pressure29.97 inHg
Wind6.6 mph NE
Humidity12%
Visibility—
Dew point16°
Wed, 2876° / 55°0
76 °
Heather Glen, Wednesday, 28 October
Overcast. High 76°, low 55°.
Pressure29.94 inHg
Wind6.7 mph NE
Humidity13%
Visibility—
Dew point17°
Thu, 2971° / 52°0
71 °
Heather Glen, Thursday, 29 October
Partly cloudy. High 71°, low 52°.
Pressure29.88 inHg
Wind6.7 mph SW
Humidity23%
Visibility—
Dew point28°
Fri, 3065° / 50°0
65 °
Heather Glen, Friday, 30 October
Overcast. High 65°, low 50°.
Pressure29.88 inHg
Wind7.9 mph SW
Humidity36%
Visibility—
Dew point33°
Sat, 3161° / 47°0
61 °
Heather Glen, Saturday, 31 October
Overcast. High 61°, low 47°.
Pressure30.03 inHg
Wind6.7 mph SW
Humidity42%
Visibility—
Dew point34°
Sun, 0165° / 46°0
65 °
Heather Glen, Sunday, 1 November
Overcast. High 65°, low 46°.
Pressure30.21 inHg
Wind5.6 mph NE
Humidity35%
Visibility—
Dew point32°
Mon, 0266° / 50°0
66 °
Heather Glen, Monday, 2 November
Overcast. High 66°, low 50°.
Pressure30.15 inHg
Wind5.6 mph E
Humidity27%
Visibility—
Dew point28°
Tue, 0353° / 48°0.22
53 °
Heather Glen, Tuesday, 3 November
Rain. High 53°, low 48°.
Pressure30.06 inHg
Wind7 mph E
Humidity87%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0464° / 44°0.13
64 °
Heather Glen, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high64°
Average low44°
Average precipitation0.13 in
Chance of precipitation18%
Record high81° (1976)
Record low30° (2022)
Thu, 0563° / 44°0.17
63 °
Heather Glen, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high63°
Average low44°
Average precipitation0.17 in
Chance of precipitation23%
Record high80° (1976)
Record low33° (2011)
Fri, 0662° / 45°0.19
62 °
Heather Glen, Friday, 6 November
Climate normal for this date — 60-year average.
Average high62°
Average low45°
Average precipitation0.19 in
Chance of precipitation28%
Record high79° (1976)
Record low35° (2003)
Sat, 0762° / 44°0.17
62 °
Heather Glen, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high62°
Average low44°
Average precipitation0.17 in
Chance of precipitation35%
Record high77° (2007)
Record low32° (1963)
Sun, 0860° / 42°0.2
60 °
Heather Glen, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high60°
Average low42°
Average precipitation0.2 in
Chance of precipitation35%
Record high78° (2019)
Record low32° (2011)
Mon, 0959° / 42°0.18
59 °
Heather Glen, Monday, 9 November
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.18 in
Chance of precipitation35%
Record high78° (2025)
Record low25° (2020)
Tue, 1059° / 42°0.21
59 °
Heather Glen, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.21 in
Chance of precipitation37%
Record high77° (2025)
Record low23° (2022)
Wed, 1160° / 41°0.21
60 °
Heather Glen, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high60°
Average low41°
Average precipitation0.21 in
Chance of precipitation32%
Record high76° (1990)
Record low25° (2022)
Thu, 1260° / 41°0.17
60 °
Heather Glen, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high60°
Average low41°
Average precipitation0.17 in
Chance of precipitation32%
Record high75° (1990)
Record low22° (1985)
Fri, 1359° / 41°0.26
59 °
Heather Glen, Friday, 13 November
Climate normal for this date — 60-year average.
Average high59°
Average low41°
Average precipitation0.26 in
Chance of precipitation32%
Record high76° (1999)
Record low18° (1985)
Sat, 1459° / 41°0.19
59 °
Heather Glen, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high59°
Average low41°
Average precipitation0.19 in
Chance of precipitation32%
Record high76° (1995)
Record low20° (1985)
Sun, 1559° / 41°0.11
59 °
Heather Glen, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high59°
Average low41°
Average precipitation0.11 in
Chance of precipitation33%
Record high76° (2008)
Record low21° (1985)
Mon, 1658° / 41°0.22
58 °
Heather Glen, Monday, 16 November
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.22 in
Chance of precipitation33%
Record high74° (2008)
Record low26° (1964)
Tue, 1758° / 40°0.3
58 °
Heather Glen, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.3 in
Chance of precipitation35%
Record high75° (2008)
Record low28° (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 Heather Glen, 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 Heather Glen, 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.