Monthly outlook for Union Hill, CA: average high 64.8°, average low 45.8°. That is 1.2° below the climate normal for October. Precipitation is expected on 5 days (about 0.7 inches), against a normal of 3 days and 1.9 inches. The warmest day looks like 25 October (76.8°), the coolest 29 October (34.4°).
64.8°/45.8°
Average high / low
−1.2°
Below normal
5 / 3
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
69.5°
68.5°
+0.5°
28 October – 6 November
56.9°
63.6°
-3.7°
7 November – 16 November
at normal
58.8°
—
October records over 66 years
100°1 October 2024All-time high
30.9°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Alta Sierra (6 mi).
Mon, 1967° / 54°0
67 °
Union Hill, Monday, 19 October
Clear. High 67°, low 54°.
Pressure29.91 inHg
Wind7.3 mph S
Humidity30%
Visibility6.2 mi
Dew point35°
Tue, 2068° / 50°0
68 °
Union Hill, Tuesday, 20 October
Overcast. High 68°, low 50°.
Pressure29.91 inHg
Wind4.9 mph W
Humidity40%
Visibility6.2 mi
Dew point41°
Wed, 2170° / 52°0.04
70 °
Union Hill, Wednesday, 21 October
Light rain. High 70°, low 52°.
Pressure29.88 inHg
Wind2.6 mph S
Humidity32%
Visibility6.2 mi
Dew point39°
Thu, 2264° / 49°0.07
64 °
Union Hill, Thursday, 22 October
Light rain. High 64°, low 49°.
Pressure29.94 inHg
Wind6.5 mph W
Humidity49%
Visibility6.2 mi
Dew point44°
Fri, 2361° / 48°0.13
61 °
Union Hill, Friday, 23 October
Light rain. High 61°, low 48°.
Pressure30.09 inHg
Wind9.5 mph NE
Humidity69%
Visibility—
Dew point46°
Sat, 2471° / 43°0
71 °
Union Hill, Saturday, 24 October
Mostly clear. High 71°, low 43°.
Pressure30.09 inHg
Wind9.9 mph NE
Humidity27%
Visibility—
Dew point27°
Sun, 2577° / 52°0
77 °
Union Hill, Sunday, 25 October
Clear. High 77°, low 52°.
Pressure30.03 inHg
Wind6.3 mph E
Humidity18%
Visibility—
Dew point25°
Mon, 2676° / 54°0
76 °
Union Hill, Monday, 26 October
Clear. High 76°, low 54°.
Pressure29.83 inHg
Wind6.3 mph E
Humidity22%
Visibility—
Dew point30°
Tue, 2766° / 46°0
66 °
Union Hill, Tuesday, 27 October
Overcast. High 66°, low 46°.
Pressure29.74 inHg
Wind11 mph S
Humidity24%
Visibility—
Dew point26°
Wed, 2849° / 36°0.11
49 °
Union Hill, Wednesday, 28 October
Light rain. High 49°, low 36°.
Pressure29.94 inHg
Wind6.6 mph SW
Humidity54%
Visibility—
Dew point31°
Thu, 2945° / 34°0.3
45 °
Union Hill, Thursday, 29 October
Rain. High 45°, low 34°.
Pressure30.12 inHg
Wind8.8 mph S
Humidity69%
Visibility—
Dew point34°
Fri, 3060° / 37°0
60 °
Union Hill, Friday, 30 October
Mostly clear. High 60°, low 37°.
Pressure30.12 inHg
Wind7.8 mph NE
Humidity59%
Visibility—
Dew point35°
Sat, 3163° / 38°0
63 °
Union Hill, Saturday, 31 October
Clear. High 63°, low 38°.
Pressure30.18 inHg
Wind6.9 mph NE
Humidity18%
Visibility—
Dew point12°
Sun, 0166° / 44°0
66 °
Union Hill, Sunday, 1 November
Partly cloudy. High 66°, low 44°.
Pressure30.15 inHg
Wind6.2 mph NE
Humidity25%
Visibility—
Dew point24°
Mon, 0259° / 45°0
59 °
Union Hill, Monday, 2 November
Overcast. High 59°, low 45°.
Pressure29.91 inHg
Wind10.9 mph SW
Humidity29%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0364° / 45°0.13
64 °
Union Hill, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high64°
Average low45°
Average precipitation0.13 in
Chance of precipitation20%
Record high79° (2018)
Record low29° (2022)
Wed, 0464° / 44°0.12
64 °
Union Hill, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high64°
Average low44°
Average precipitation0.12 in
Chance of precipitation18%
Record high79° (1976)
Record low31° (2003)
Thu, 0562° / 44°0.16
62 °
Union Hill, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high62°
Average low44°
Average precipitation0.16 in
Chance of precipitation23%
Record high80° (2020)
Record low33° (2011)
Fri, 0661° / 44°0.21
61 °
Union Hill, Friday, 6 November
Climate normal for this date — 60-year average.
Average high61°
Average low44°
Average precipitation0.21 in
Chance of precipitation27%
Record high77° (1976)
Record low36° (2003)
Sat, 0761° / 44°0.17
61 °
Union Hill, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high61°
Average low44°
Average precipitation0.17 in
Chance of precipitation35%
Record high76° (2019)
Record low33° (2011)
Sun, 0860° / 43°0.19
60 °
Union Hill, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high60°
Average low43°
Average precipitation0.19 in
Chance of precipitation37%
Record high79° (2019)
Record low32° (2011)
Mon, 0959° / 42°0.17
59 °
Union Hill, Monday, 9 November
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.17 in
Chance of precipitation35%
Record high79° (2025)
Record low29° (1982)
Tue, 1058° / 42°0.19
58 °
Union Hill, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.19 in
Chance of precipitation35%
Record high79° (2025)
Record low28° (2022)
Wed, 1159° / 42°0.21
59 °
Union Hill, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.21 in
Chance of precipitation28%
Record high74° (2025)
Record low27° (1982)
Thu, 1259° / 41°0.17
59 °
Union Hill, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high59°
Average low41°
Average precipitation0.17 in
Chance of precipitation32%
Record high74° (2019)
Record low23° (1985)
Fri, 1358° / 41°0.26
58 °
Union Hill, Friday, 13 November
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.26 in
Chance of precipitation32%
Record high73° (2021)
Record low12° (1985)
Sat, 1459° / 42°0.17
59 °
Union Hill, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.17 in
Chance of precipitation33%
Record high75° (2008)
Record low21° (1985)
Sun, 1558° / 41°0.13
58 °
Union Hill, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.13 in
Chance of precipitation27%
Record high73° (2008)
Record low24° (1985)
Mon, 1657° / 42°0.23
57 °
Union Hill, Monday, 16 November
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.23 in
Chance of precipitation33%
Record high71° (2008)
Record low28° (2000)
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 Union Hill, 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 Union Hill, 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.