Monthly outlook for Penn Valley, CA: average high 69°, average low 50.7°. That is 4.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 4 days and 2.6 inches. The warmest day looks like 8 November (75.3°), the coolest 5 November (43.5°).
69°/50.7°
Average high / low
+4.5°
Above normal
2 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
31 October – 9 November
67°
62.3°
+2.6°
10 November – 19 November
72.3°
57.8°
+8°
20 November – 29 November
at normal
54.6°
—
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 (9 mi).
Sun, 0163° / 45°0
63 °
Penn Valley, Sunday, 1 November
Mostly clear. High 63°, low 45°.
Pressure29.97 inHg
Wind6 mph W
Humidity57%
Visibility0.9 mi
Dew point44°
Mon, 0265° / 44°0
65 °
Penn Valley, Monday, 2 November
Partly cloudy. High 65°, low 44°.
Pressure30.18 inHg
Wind4.7 mph SW
Humidity42%
Visibility6.2 mi
Dew point37°
Tue, 0363° / 49°0.24
63 °
Penn Valley, Tuesday, 3 November
Rain. High 63°, low 49°.
Pressure30.06 inHg
Wind7.5 mph SW
Humidity44%
Visibility6.2 mi
Dew point41°
Wed, 0463° / 44°0
63 °
Penn Valley, Wednesday, 4 November
Mostly clear. High 63°, low 44°.
Pressure30.09 inHg
Wind7.5 mph W
Humidity62%
Visibility—
Dew point44°
Thu, 0563° / 43°0
63 °
Penn Valley, Thursday, 5 November
Clear. High 63°, low 43°.
Pressure30.09 inHg
Wind6.2 mph NE
Humidity53%
Visibility—
Dew point40°
Fri, 0671° / 50°0
71 °
Penn Valley, Friday, 6 November
Overcast. High 71°, low 50°.
Pressure30.09 inHg
Wind5.5 mph E
Humidity27%
Visibility—
Dew point29°
Sat, 0775° / 52°0
75 °
Penn Valley, Saturday, 7 November
Mostly clear. High 75°, low 52°.
Pressure30.09 inHg
Wind5.5 mph E
Humidity26%
Visibility—
Dew point31°
Sun, 0875° / 54°0
75 °
Penn Valley, Sunday, 8 November
Overcast. High 75°, low 54°.
Pressure30.06 inHg
Wind5.4 mph E
Humidity29%
Visibility—
Dew point35°
Mon, 0974° / 56°0
74 °
Penn Valley, Monday, 9 November
Overcast. High 74°, low 56°.
Pressure30.03 inHg
Wind5.4 mph SW
Humidity31%
Visibility—
Dew point36°
Tue, 1074° / 56°0
74 °
Penn Valley, Tuesday, 10 November
Overcast. High 74°, low 56°.
Pressure30.12 inHg
Wind5.9 mph E
Humidity30%
Visibility—
Dew point37°
Wed, 1172° / 53°0
72 °
Penn Valley, Wednesday, 11 November
Overcast. High 72°, low 53°.
Pressure30.15 inHg
Wind7.2 mph S
Humidity29%
Visibility—
Dew point33°
Thu, 1272° / 53°0
72 °
Penn Valley, Thursday, 12 November
Clear. High 72°, low 53°.
Pressure30.12 inHg
Wind6.2 mph SW
Humidity33%
Visibility—
Dew point36°
Fri, 1373° / 52°0
73 °
Penn Valley, Friday, 13 November
Overcast. High 73°, low 52°.
Pressure29.97 inHg
Wind5.1 mph NE
Humidity24%
Visibility—
Dew point29°
Sat, 1470° / 54°0
70 °
Penn Valley, Saturday, 14 November
Overcast. High 70°, low 54°.
Pressure30.03 inHg
Wind5.2 mph E
Humidity29%
Visibility—
Dew point33°
Sun, 1573° / 58°0
73 °
Penn Valley, Sunday, 15 November
Overcast. High 73°, low 58°.
Pressure30.09 inHg
Wind5.3 mph NE
Humidity35%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 1657° / 42°0.23
57 °
Penn Valley, 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)
Tue, 1757° / 41°0.28
57 °
Penn Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.28 in
Chance of precipitation37%
Record high73° (2019)
Record low30° (1964)
Wed, 1857° / 40°0.23
57 °
Penn Valley, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high57°
Average low40°
Average precipitation0.23 in
Chance of precipitation33%
Record high75° (2019)
Record low27° (1985)
Thu, 1956° / 40°0.18
56 °
Penn Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.18 in
Chance of precipitation37%
Record high70° (2018)
Record low26° (1985)
Fri, 2055° / 40°0.24
55 °
Penn Valley, Friday, 20 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.24 in
Chance of precipitation37%
Record high72° (1995)
Record low27° (1985)
Sat, 2155° / 40°0.29
55 °
Penn Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.29 in
Chance of precipitation33%
Record high74° (2017)
Record low26° (1961)
Sun, 2255° / 39°0.24
55 °
Penn Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.24 in
Chance of precipitation33%
Record high77° (2017)
Record low28° (1985)
Mon, 2356° / 39°0.23
56 °
Penn Valley, Monday, 23 November
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.23 in
Chance of precipitation25%
Record high71° (1995)
Record low28° (1973)
Tue, 2455° / 38°0.22
55 °
Penn Valley, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.22 in
Chance of precipitation32%
Record high72° (1995)
Record low21° (2010)
Wed, 2555° / 38°0.18
55 °
Penn Valley, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.18 in
Chance of precipitation32%
Record high69° (2017)
Record low28° (2010)
Thu, 2655° / 38°0.17
55 °
Penn Valley, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.17 in
Chance of precipitation28%
Record high68° (2002)
Record low25° (1984)
Fri, 2754° / 38°0.18
54 °
Penn Valley, Friday, 27 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.18 in
Chance of precipitation32%
Record high67° (2002)
Record low24° (1994)
Sat, 2853° / 37°0.18
53 °
Penn Valley, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.18 in
Chance of precipitation30%
Record high71° (2021)
Record low29° (1960)
Sun, 2953° / 37°0.27
53 °
Penn Valley, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.27 in
Chance of precipitation27%
Record high71° (2021)
Record low25° (2010)
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 Penn Valley, 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 Penn Valley, 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.