Monthly outlook for Mount Wilson, CA: average high 60.4°, average low 43.9°. That is 5.7° below the climate normal for November. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 7 November (70°), the coolest 18 November (37.7°).
60.4°/43.9°
Average high / low
−5.7°
Below normal
1 / 2
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
6 November – 15 November
61.6°
71.5°
-5.5°
16 November – 25 November
58.4°
68.7°
-5.7°
26 November – 5 December
at normal
66°
—
November records over 66 years
92.7°1 November 1997All-time high
31.3°12 November 1978All-time low
Climate normals and records are computed from the nearest reference point — Altadena (5 mi).
Sat, 0770° / 41°0
70 °
Mount Wilson, Saturday, 7 November
Clear. High 70°, low 41°.
Pressure30.06 inHg
Wind1.9 mph NE
Humidity26%
Visibility6.2 mi
Dew point31°
Sun, 0862° / 45°0
62 °
Mount Wilson, Sunday, 8 November
Overcast. High 62°, low 45°.
Pressure30.06 inHg
Wind4.4 mph SW
Humidity24%
Visibility6.2 mi
Dew point31°
Mon, 0961° / 46°0
61 °
Mount Wilson, Monday, 9 November
Clear. High 61°, low 46°.
Pressure30.06 inHg
Wind4.8 mph SW
Humidity27%
Visibility6.2 mi
Dew point32°
Tue, 1062° / 45°0
62 °
Mount Wilson, Tuesday, 10 November
Clear. High 62°, low 45°.
Pressure30.12 inHg
Wind3.3 mph NE
Humidity25%
Visibility—
Dew point23°
Wed, 1163° / 48°0
63 °
Mount Wilson, Wednesday, 11 November
Clear. High 63°, low 48°.
Pressure30.15 inHg
Wind4.7 mph NE
Humidity24%
Visibility—
Dew point22°
Thu, 1258° / 46°0
58 °
Mount Wilson, Thursday, 12 November
Partly cloudy. High 58°, low 46°.
Pressure30.00 inHg
Wind7 mph S
Humidity38%
Visibility—
Dew point31°
Fri, 1355° / 43°0
55 °
Mount Wilson, Friday, 13 November
Overcast. High 55°, low 43°.
Pressure29.94 inHg
Wind6.7 mph S
Humidity64%
Visibility—
Dew point38°
Sat, 1457° / 43°0
57 °
Mount Wilson, Saturday, 14 November
Partly cloudy. High 57°, low 43°.
Pressure29.97 inHg
Wind7 mph SW
Humidity51%
Visibility—
Dew point36°
Sun, 1561° / 44°0
61 °
Mount Wilson, Sunday, 15 November
Mostly clear. High 61°, low 44°.
Pressure30.03 inHg
Wind6 mph SW
Humidity36%
Visibility—
Dew point28°
Mon, 1657° / 47°0
57 °
Mount Wilson, Monday, 16 November
Overcast. High 57°, low 47°.
Pressure30.06 inHg
Wind6 mph S
Humidity30%
Visibility—
Dew point23°
Tue, 1753° / 40°0.16
53 °
Mount Wilson, Tuesday, 17 November
Light rain. High 53°, low 40°.
Pressure30.06 inHg
Wind9.2 mph S
Humidity50%
Visibility—
Dew point30°
Wed, 1856° / 38°0
56 °
Mount Wilson, Wednesday, 18 November
Partly cloudy. High 56°, low 38°.
Pressure30.06 inHg
Wind8.3 mph N
Humidity29%
Visibility—
Dew point18°
Thu, 1960° / 41°0
60 °
Mount Wilson, Thursday, 19 November
Partly cloudy. High 60°, low 41°.
Pressure30.12 inHg
Wind8.9 mph N
Humidity18%
Visibility—
Dew point11°
Fri, 2063° / 45°0
63 °
Mount Wilson, Friday, 20 November
Overcast. High 63°, low 45°.
Pressure30.15 inHg
Wind9 mph N
Humidity14%
Visibility—
Dew point8°
Sat, 2162° / 49°0
62 °
Mount Wilson, Saturday, 21 November
Overcast. High 62°, low 49°.
Pressure30.12 inHg
Wind6.9 mph N
Humidity15%
Visibility—
Dew point10°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2268° / 49°0.06
68 °
Mount Wilson, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high68°
Average low49°
Average precipitation0.06 in
Chance of precipitation15%
Record high89° (2017)
Record low35° (1983)
Mon, 2369° / 48°0.01
69 °
Mount Wilson, Monday, 23 November
Climate normal for this date — 60-year average.
Average high69°
Average low48°
Average precipitation0.01 in
Chance of precipitation7%
Record high87° (2017)
Record low39° (1983)
Tue, 2469° / 49°0.04
69 °
Mount Wilson, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high69°
Average low49°
Average precipitation0.04 in
Chance of precipitation12%
Record high84° (2017)
Record low40° (1966)
Wed, 2568° / 48°0.04
68 °
Mount Wilson, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high68°
Average low48°
Average precipitation0.04 in
Chance of precipitation5%
Record high89° (1977)
Record low36° (2010)
Thu, 2668° / 48°0.06
68 °
Mount Wilson, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high68°
Average low48°
Average precipitation0.06 in
Chance of precipitation13%
Record high89° (1977)
Record low36° (1984)
Fri, 2766° / 47°0.03
66 °
Mount Wilson, Friday, 27 November
Climate normal for this date — 60-year average.
Average high66°
Average low47°
Average precipitation0.03 in
Chance of precipitation10%
Record high86° (2014)
Record low37° (1994)
Sat, 2866° / 46°0.07
66 °
Mount Wilson, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high66°
Average low46°
Average precipitation0.07 in
Chance of precipitation20%
Record high86° (1980)
Record low37° (2010)
Sun, 2965° / 46°0.11
65 °
Mount Wilson, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high65°
Average low46°
Average precipitation0.11 in
Chance of precipitation17%
Record high82° (1977)
Record low34° (1975)
Mon, 3065° / 47°0.06
65 °
Mount Wilson, Monday, 30 November
Climate normal for this date — 60-year average.
Average high65°
Average low47°
Average precipitation0.06 in
Chance of precipitation20%
Record high81° (1977)
Record low35° (1975)
Tue, 0166° / 47°0.02
66 °
Mount Wilson, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high66°
Average low47°
Average precipitation0.02 in
Chance of precipitation7%
Record high80° (2021)
Record low35° (2004)
Wed, 0266° / 47°0.04
66 °
Mount Wilson, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high66°
Average low47°
Average precipitation0.04 in
Chance of precipitation12%
Record high80° (1977)
Record low37° (2004)
Thu, 0366° / 47°0.08
66 °
Mount Wilson, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high66°
Average low47°
Average precipitation0.08 in
Chance of precipitation17%
Record high78° (1977)
Record low38° (2004)
Fri, 0466° / 47°0.09
66 °
Mount Wilson, Friday, 4 December
Climate normal for this date — 60-year average.
Average high66°
Average low47°
Average precipitation0.09 in
Chance of precipitation15%
Record high84° (1979)
Record low37° (2004)
Sat, 0566° / 47°0.08
66 °
Mount Wilson, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high66°
Average low47°
Average precipitation0.08 in
Chance of precipitation10%
Record high83° (1979)
Record low32° (1972)
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 Mount Wilson, 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 Mount Wilson, 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.