Monthly outlook for Post Mountain, CA: average high 67.6°, average low 38.5°. That is 0.4° below the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 1.4 inches. The warmest day looks like 16 October (79.7°), the coolest 21 October (29.8°).
67.6°/38.5°
Average high / low
−0.4°
Below normal
1 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
66.1°
70.2°
-2.3°
22 October – 31 October
70.1°
63.9°
+3.4°
1 November – 10 November
at normal
58.9°
—
October records over 66 years
96.8°2 October 1980All-time high
24.3°18 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Hayfork (11 mi).
Tue, 1364° / 33°0
64 °
Post Mountain, Tuesday, 13 October
Overcast. High 64°, low 33°.
Pressure30.12 inHg
Wind3.6 mph NE
Humidity30%
Visibility6.2 mi
Dew point19°
Wed, 1476° / 39°0
76 °
Post Mountain, Wednesday, 14 October
Clear. High 76°, low 39°.
Pressure30.15 inHg
Wind2.3 mph NE
Humidity21%
Visibility6.2 mi
Dew point24°
Thu, 1579° / 47°0
79 °
Post Mountain, Thursday, 15 October
Clear. High 79°, low 47°.
Pressure30.18 inHg
Wind8.1 mph E
Humidity19%
Visibility6.2 mi
Dew point27°
Fri, 1680° / 45°0
80 °
Post Mountain, Friday, 16 October
Clear. High 80°, low 45°.
Pressure30.12 inHg
Wind2 mph NE
Humidity19%
Visibility6.2 mi
Dew point24°
Sat, 1779° / 47°0
79 °
Post Mountain, Saturday, 17 October
Clear. High 79°, low 47°.
Pressure30.03 inHg
Wind6.8 mph W
Humidity20%
Visibility—
Dew point27°
Sun, 1875° / 40°0
75 °
Post Mountain, Sunday, 18 October
Clear. High 75°, low 40°.
Pressure29.91 inHg
Wind8.5 mph SW
Humidity21%
Visibility—
Dew point26°
Mon, 1945° / 36°0.11
45 °
Post Mountain, Monday, 19 October
Light rain. High 45°, low 36°.
Pressure29.97 inHg
Wind4.5 mph SW
Humidity76%
Visibility—
Dew point36°
Tue, 2050° / 31°0.03
50 °
Post Mountain, Tuesday, 20 October
Light rain. High 50°, low 31°.
Pressure29.91 inHg
Wind8.4 mph NW
Humidity69%
Visibility—
Dew point35°
Wed, 2156° / 30°0
56 °
Post Mountain, Wednesday, 21 October
Clear. High 56°, low 30°.
Pressure29.97 inHg
Wind7.3 mph NW
Humidity47%
Visibility—
Dew point27°
Thu, 2266° / 33°0
66 °
Post Mountain, Thursday, 22 October
Clear. High 66°, low 33°.
Pressure30.09 inHg
Wind5.1 mph NW
Humidity21%
Visibility—
Dew point15°
Fri, 2374° / 41°0
74 °
Post Mountain, Friday, 23 October
Clear. High 74°, low 41°.
Pressure30.12 inHg
Wind6.6 mph W
Humidity13%
Visibility—
Dew point13°
Sat, 2462° / 40°0
62 °
Post Mountain, Saturday, 24 October
Overcast. High 62°, low 40°.
Pressure30.21 inHg
Wind7.4 mph W
Humidity52%
Visibility—
Dew point38°
Sun, 2570° / 37°0
70 °
Post Mountain, Sunday, 25 October
Partly cloudy. High 70°, low 37°.
Pressure30.15 inHg
Wind5.3 mph N
Humidity32%
Visibility—
Dew point27°
Mon, 2674° / 45°0
74 °
Post Mountain, Monday, 26 October
Clear. High 74°, low 45°.
Pressure30.15 inHg
Wind6.3 mph N
Humidity26%
Visibility—
Dew point29°
Tue, 2774° / 40°0
74 °
Post Mountain, Tuesday, 27 October
Overcast. High 74°, low 40°.
Pressure30.06 inHg
Wind7.8 mph NW
Humidity25%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2862° / 44°0.13
62 °
Post Mountain, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high62°
Average low44°
Average precipitation0.13 in
Chance of precipitation25%
Record high87° (2003)
Record low29° (1971)
Thu, 2962° / 42°0.14
62 °
Post Mountain, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high62°
Average low42°
Average precipitation0.14 in
Chance of precipitation27%
Record high82° (2020)
Record low29° (1971)
Fri, 3062° / 42°0.11
62 °
Post Mountain, Friday, 30 October
Climate normal for this date — 60-year average.
Average high62°
Average low42°
Average precipitation0.11 in
Chance of precipitation33%
Record high81° (1966)
Record low32° (1996)
Sat, 3163° / 42°0.07
63 °
Post Mountain, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high63°
Average low42°
Average precipitation0.07 in
Chance of precipitation22%
Record high82° (1966)
Record low31° (1984)
Sun, 0163° / 42°0.09
63 °
Post Mountain, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high63°
Average low42°
Average precipitation0.09 in
Chance of precipitation25%
Record high82° (1966)
Record low32° (1971)
Mon, 0262° / 43°0.12
62 °
Post Mountain, Monday, 2 November
Climate normal for this date — 60-year average.
Average high62°
Average low43°
Average precipitation0.12 in
Chance of precipitation22%
Record high81° (2020)
Record low31° (1994)
Tue, 0363° / 43°0.1
63 °
Post Mountain, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high63°
Average low43°
Average precipitation0.1 in
Chance of precipitation23%
Record high79° (1966)
Record low28° (2022)
Wed, 0461° / 44°0.1
61 °
Post Mountain, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high61°
Average low44°
Average precipitation0.1 in
Chance of precipitation22%
Record high78° (2019)
Record low32° (2013)
Thu, 0559° / 43°0.15
59 °
Post Mountain, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.15 in
Chance of precipitation33%
Record high78° (2012)
Record low28° (2017)
Fri, 0658° / 42°0.17
58 °
Post Mountain, Friday, 6 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.17 in
Chance of precipitation42%
Record high76° (1978)
Record low31° (2022)
Sat, 0758° / 41°0.19
58 °
Post Mountain, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.19 in
Chance of precipitation35%
Record high78° (1991)
Record low27° (1994)
Sun, 0856° / 40°0.14
56 °
Post Mountain, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.14 in
Chance of precipitation37%
Record high75° (2019)
Record low28° (2021)
Mon, 0955° / 39°0.2
55 °
Post Mountain, Monday, 9 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.2 in
Chance of precipitation38%
Record high75° (2019)
Record low19° (1998)
Tue, 1055° / 39°0.19
55 °
Post Mountain, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.19 in
Chance of precipitation37%
Record high75° (2019)
Record low19° (1985)
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 Post Mountain, 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 Post Mountain, 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.