Monthly outlook for Harden Flat, CA: average high 63.7°, average low 42.8°. That is 1.9° below the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 2 days and 1.2 inches. The warmest day looks like 17 October (79.1°), the coolest 27 October (38.5°).
63.7°/42.8°
Average high / low
−1.9°
Below normal
4 / 2
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
65.6°
68.7°
-1.7°
26 October – 4 November
60.5°
64.1°
-2°
5 November – 14 November
at normal
59.7°
—
October records over 66 years
97°1 October 2024All-time high
27.9°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Pine Mountain Lake (13 mi).
Sat, 1779° / 43°0
79 °
Harden Flat, Saturday, 17 October
Clear. High 79°, low 43°.
Pressure30.06 inHg
Wind9.3 mph NW
Humidity15%
Visibility6.2 mi
Dew point24°
Sun, 1879° / 49°0
79 °
Harden Flat, Sunday, 18 October
Clear. High 79°, low 49°.
Pressure29.97 inHg
Wind6.1 mph SW
Humidity17%
Visibility6.2 mi
Dew point24°
Mon, 1971° / 49°0
71 °
Harden Flat, Monday, 19 October
Clear. High 71°, low 49°.
Pressure29.88 inHg
Wind9.1 mph S
Humidity23%
Visibility6.2 mi
Dew point31°
Tue, 2061° / 47°0.07
61 °
Harden Flat, Tuesday, 20 October
Light rain. High 61°, low 47°.
Pressure29.85 inHg
Wind6.4 mph SW
Humidity44%
Visibility—
Dew point35°
Wed, 2158° / 43°0.12
58 °
Harden Flat, Wednesday, 21 October
Light rain. High 58°, low 43°.
Pressure29.97 inHg
Wind6.1 mph S
Humidity81%
Visibility—
Dew point45°
Thu, 2248° / 43°0.2
48 °
Harden Flat, Thursday, 22 October
Light rain. High 48°, low 43°.
Pressure29.97 inHg
Wind2.4 mph E
Humidity89%
Visibility—
Dew point43°
Fri, 2357° / 42°0.01
57 °
Harden Flat, Friday, 23 October
Light rain. High 57°, low 42°.
Pressure30.00 inHg
Wind8.4 mph SW
Humidity60%
Visibility—
Dew point38°
Sat, 2462° / 41°0
62 °
Harden Flat, Saturday, 24 October
Clear. High 62°, low 41°.
Pressure30.03 inHg
Wind8.3 mph W
Humidity38%
Visibility—
Dew point31°
Sun, 2563° / 43°0
63 °
Harden Flat, Sunday, 25 October
Overcast. High 63°, low 43°.
Pressure30.03 inHg
Wind8.7 mph SW
Humidity35%
Visibility—
Dew point30°
Mon, 2656° / 39°0.09
56 °
Harden Flat, Monday, 26 October
Light rain. High 56°, low 39°.
Pressure29.80 inHg
Wind9 mph W
Humidity38%
Visibility—
Dew point28°
Tue, 2761° / 38°0
61 °
Harden Flat, Tuesday, 27 October
Clear. High 61°, low 38°.
Pressure29.83 inHg
Wind7.7 mph SW
Humidity31%
Visibility—
Dew point25°
Wed, 2861° / 42°0
61 °
Harden Flat, Wednesday, 28 October
Overcast. High 61°, low 42°.
Pressure30.00 inHg
Wind7.5 mph W
Humidity34%
Visibility—
Dew point27°
Thu, 2962° / 41°0
62 °
Harden Flat, Thursday, 29 October
Clear. High 62°, low 41°.
Pressure29.88 inHg
Wind8.5 mph W
Humidity33%
Visibility—
Dew point26°
Fri, 3062° / 39°0
62 °
Harden Flat, Friday, 30 October
Clear. High 62°, low 39°.
Pressure29.97 inHg
Wind6.3 mph W
Humidity26%
Visibility—
Dew point20°
Sat, 3161° / 42°0
61 °
Harden Flat, Saturday, 31 October
Overcast. High 61°, low 42°.
Pressure30.03 inHg
Wind7.6 mph SW
Humidity31%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0164° / 42°0.06
64 °
Harden Flat, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high64°
Average low42°
Average precipitation0.06 in
Chance of precipitation13%
Record high80° (2020)
Record low31° (2003)
Mon, 0264° / 42°0.07
64 °
Harden Flat, Monday, 2 November
Climate normal for this date — 60-year average.
Average high64°
Average low42°
Average precipitation0.07 in
Chance of precipitation17%
Record high79° (1966)
Record low32° (2022)
Tue, 0364° / 43°0.07
64 °
Harden Flat, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high64°
Average low43°
Average precipitation0.07 in
Chance of precipitation17%
Record high78° (1976)
Record low28° (2022)
Wed, 0464° / 42°0.06
64 °
Harden Flat, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high64°
Average low42°
Average precipitation0.06 in
Chance of precipitation12%
Record high79° (1976)
Record low29° (2003)
Thu, 0563° / 42°0.06
63 °
Harden Flat, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high63°
Average low42°
Average precipitation0.06 in
Chance of precipitation13%
Record high79° (2020)
Record low30° (2022)
Fri, 0662° / 42°0.09
62 °
Harden Flat, Friday, 6 November
Climate normal for this date — 60-year average.
Average high62°
Average low42°
Average precipitation0.09 in
Chance of precipitation23%
Record high77° (2012)
Record low34° (2017)
Sat, 0761° / 42°0.09
61 °
Harden Flat, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high61°
Average low42°
Average precipitation0.09 in
Chance of precipitation30%
Record high75° (1991)
Record low30° (2011)
Sun, 0860° / 40°0.13
60 °
Harden Flat, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high60°
Average low40°
Average precipitation0.13 in
Chance of precipitation22%
Record high78° (2019)
Record low31° (2011)
Mon, 0959° / 39°0.1
59 °
Harden Flat, Monday, 9 November
Climate normal for this date — 60-year average.
Average high59°
Average low39°
Average precipitation0.1 in
Chance of precipitation23%
Record high78° (2025)
Record low20° (2020)
Tue, 1058° / 40°0.11
58 °
Harden Flat, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.11 in
Chance of precipitation28%
Record high77° (2025)
Record low21° (2022)
Wed, 1159° / 39°0.16
59 °
Harden Flat, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high59°
Average low39°
Average precipitation0.16 in
Chance of precipitation28%
Record high75° (1990)
Record low24° (2020)
Thu, 1259° / 39°0.12
59 °
Harden Flat, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high59°
Average low39°
Average precipitation0.12 in
Chance of precipitation23%
Record high76° (2019)
Record low20° (1985)
Fri, 1358° / 39°0.16
58 °
Harden Flat, Friday, 13 November
Climate normal for this date — 60-year average.
Average high58°
Average low39°
Average precipitation0.16 in
Chance of precipitation25%
Record high75° (1999)
Record low10° (1985)
Sat, 1459° / 39°0.15
59 °
Harden Flat, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high59°
Average low39°
Average precipitation0.15 in
Chance of precipitation22%
Record high74° (2021)
Record low15° (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 Harden Flat, 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 Harden Flat, 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.