Monthly outlook for Post Mountain, CA: average high 69.5°, average low 39.5°. That is 1.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 3 days and 1.6 inches. The warmest day looks like 16 October (81.3°), the coolest 27 October (33.6°).
69.5°/39.5°
Average high / low
+1.3°
Above normal
1 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
72.8°
69.3°
+2°
24 October – 2 November
64°
63.1°
+0.5°
3 November – 12 November
at normal
57.5°
—
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).
Thu, 1579° / 39°0
79 °
Post Mountain, Thursday, 15 October
Clear. High 79°, low 39°.
Pressure30.24 inHg
Wind6.9 mph E
Humidity20%
Visibility6.2 mi
Dew point30°
Fri, 1681° / 45°0
81 °
Post Mountain, Friday, 16 October
Clear. High 81°, low 45°.
Pressure30.15 inHg
Wind2.9 mph NE
Humidity17%
Visibility6.2 mi
Dew point20°
Sat, 1779° / 49°0
79 °
Post Mountain, Saturday, 17 October
Overcast. High 79°, low 49°.
Pressure30.09 inHg
Wind1.7 mph N
Humidity20%
Visibility6.2 mi
Dew point24°
Sun, 1874° / 43°0
74 °
Post Mountain, Sunday, 18 October
Mostly clear. High 74°, low 43°.
Pressure29.97 inHg
Wind7.9 mph SW
Humidity24%
Visibility—
Dew point27°
Mon, 1959° / 37°0
59 °
Post Mountain, Monday, 19 October
Overcast. High 59°, low 37°.
Pressure29.97 inHg
Wind6.9 mph W
Humidity48%
Visibility—
Dew point29°
Tue, 2069° / 38°0
69 °
Post Mountain, Tuesday, 20 October
Overcast. High 69°, low 38°.
Pressure29.91 inHg
Wind7.1 mph E
Humidity26%
Visibility—
Dew point23°
Wed, 2174° / 44°0
74 °
Post Mountain, Wednesday, 21 October
Overcast. High 74°, low 44°.
Pressure29.85 inHg
Wind4.7 mph NE
Humidity18%
Visibility—
Dew point22°
Thu, 2270° / 39°0
70 °
Post Mountain, Thursday, 22 October
Overcast. High 70°, low 39°.
Pressure29.91 inHg
Wind6.9 mph W
Humidity29%
Visibility—
Dew point27°
Fri, 2373° / 39°0
73 °
Post Mountain, Friday, 23 October
Clear. High 73°, low 39°.
Pressure30.00 inHg
Wind5.6 mph NW
Humidity26%
Visibility—
Dew point27°
Sat, 2474° / 40°0
74 °
Post Mountain, Saturday, 24 October
Partly cloudy. High 74°, low 40°.
Pressure30.09 inHg
Wind5.2 mph NW
Humidity19%
Visibility—
Dew point21°
Sun, 2576° / 42°0
76 °
Post Mountain, Sunday, 25 October
Partly cloudy. High 76°, low 42°.
Pressure30.03 inHg
Wind5.6 mph W
Humidity15%
Visibility—
Dew point17°
Mon, 2663° / 35°0
63 °
Post Mountain, Monday, 26 October
Mostly clear. High 63°, low 35°.
Pressure29.97 inHg
Wind10.2 mph NW
Humidity35%
Visibility—
Dew point28°
Tue, 2765° / 34°0
65 °
Post Mountain, Tuesday, 27 October
Overcast. High 65°, low 34°.
Pressure29.94 inHg
Wind7.5 mph NW
Humidity25%
Visibility—
Dew point17°
Wed, 2858° / 42°0.22
58 °
Post Mountain, Wednesday, 28 October
Rain. High 58°, low 42°.
Pressure29.85 inHg
Wind9.9 mph SW
Humidity54%
Visibility—
Dew point39°
Thu, 2949° / 34°0
49 °
Post Mountain, Thursday, 29 October
Overcast. High 49°, low 34°.
Pressure29.83 inHg
Wind6.3 mph SW
Humidity60%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Wed, 1156° / 39°0.2
56 °
Post Mountain, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.2 in
Chance of precipitation33%
Record high75° (2019)
Record low7° (1985)
Thu, 1256° / 38°0.13
56 °
Post Mountain, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.13 in
Chance of precipitation32%
Record high71° (2019)
Record low9° (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.