Monthly outlook for Mount Washington, CA: average high 72.9°, average low 61.4°. That is 1.3° below the climate normal for October. Precipitation is expected on 5 days (about 1.0 inches), against a normal of 1 days and 0.4 inches. The warmest day looks like 26 October (80.8°), the coolest 29 October (55.3°).
72.9°/61.4°
Average high / low
−1.3°
Below normal
5 / 1
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
71.8°
76.3°
-2.5°
4 November – 13 November
74.7°
72.9°
+1°
14 November – 23 November
at normal
70.2°
—
October records over 66 years
104.7°4 October 1987All-time high
35.1°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — South Pasadena (4 mi).
Mon, 2681° / 57°0
81 °
Mount Washington, Monday, 26 October
Clear. High 81°, low 57°.
Pressure30.09 inHg
Wind1.8 mph S
Humidity47%
Visibility6.2 mi
Dew point52°
Tue, 2774° / 57°0
74 °
Mount Washington, Tuesday, 27 October
Clear. High 74°, low 57°.
Pressure30.00 inHg
Wind4.5 mph SE
Humidity56%
Visibility6.2 mi
Dew point54°
Wed, 2872° / 56°0
72 °
Mount Washington, Wednesday, 28 October
Clear. High 72°, low 56°.
Pressure29.97 inHg
Wind2.5 mph S
Humidity58%
Visibility—
Dew point54°
Thu, 2970° / 55°0.02
70 °
Mount Washington, Thursday, 29 October
Light rain. High 70°, low 55°.
Pressure29.91 inHg
Wind4.2 mph SE
Humidity61%
Visibility6.2 mi
Dew point54°
Fri, 3068° / 59°0.2
68 °
Mount Washington, Friday, 30 October
Light rain. High 68°, low 59°.
Pressure29.94 inHg
Wind7.1 mph SE
Humidity78%
Visibility—
Dew point56°
Sat, 3166° / 58°0.04
66 °
Mount Washington, Saturday, 31 October
Light rain. High 66°, low 58°.
Pressure29.97 inHg
Wind7.3 mph SW
Humidity84%
Visibility—
Dew point56°
Sun, 0167° / 60°0.38
67 °
Mount Washington, Sunday, 1 November
Rain. High 67°, low 60°.
Pressure29.88 inHg
Wind9.8 mph E
Humidity65%
Visibility—
Dew point51°
Mon, 0271° / 67°0.08
71 °
Mount Washington, Monday, 2 November
Light rain. High 71°, low 67°.
Pressure29.94 inHg
Wind10.4 mph E
Humidity61%
Visibility—
Dew point56°
Tue, 0369° / 65°0.31
69 °
Mount Washington, Tuesday, 3 November
Light rain. High 69°, low 65°.
Pressure30.09 inHg
Wind9.8 mph SE
Humidity83%
Visibility—
Dew point61°
Wed, 0473° / 64°0
73 °
Mount Washington, Wednesday, 4 November
Overcast. High 73°, low 64°.
Pressure30.09 inHg
Wind8.3 mph W
Humidity62%
Visibility—
Dew point55°
Thu, 0577° / 66°0
77 °
Mount Washington, Thursday, 5 November
Partly cloudy. High 77°, low 66°.
Pressure30.12 inHg
Wind8.8 mph SW
Humidity58%
Visibility—
Dew point55°
Fri, 0674° / 66°0
74 °
Mount Washington, Friday, 6 November
Light rain. High 74°, low 66°.
Pressure30.03 inHg
Wind11.3 mph SW
Humidity66%
Visibility—
Dew point59°
Sat, 0776° / 65°0
76 °
Mount Washington, Saturday, 7 November
Clear. High 76°, low 65°.
Pressure29.97 inHg
Wind8 mph SW
Humidity60%
Visibility—
Dew point55°
Sun, 0875° / 66°0
75 °
Mount Washington, Sunday, 8 November
Mostly clear. High 75°, low 66°.
Pressure30.06 inHg
Wind7.9 mph SW
Humidity62%
Visibility—
Dew point57°
Mon, 0973° / 64°0
73 °
Mount Washington, Monday, 9 November
Overcast. High 73°, low 64°.
Pressure30.09 inHg
Wind11.3 mph SW
Humidity59%
Visibility—
Dew point54°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1072° / 50°0.03
72 °
Mount Washington, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high72°
Average low50°
Average precipitation0.03 in
Chance of precipitation12%
Record high91° (1990)
Record low40° (2022)
Wed, 1172° / 50°0.04
72 °
Mount Washington, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high72°
Average low50°
Average precipitation0.04 in
Chance of precipitation8%
Record high89° (2021)
Record low37° (2000)
Thu, 1273° / 50°0.03
73 °
Mount Washington, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high73°
Average low50°
Average precipitation0.03 in
Chance of precipitation10%
Record high92° (2021)
Record low34° (1978)
Fri, 1373° / 49°0.03
73 °
Mount Washington, Friday, 13 November
Climate normal for this date — 60-year average.
Average high73°
Average low49°
Average precipitation0.03 in
Chance of precipitation8%
Record high91° (2013)
Record low35° (1985)
Sat, 1472° / 50°0.04
72 °
Mount Washington, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high72°
Average low50°
Average precipitation0.04 in
Chance of precipitation7%
Record high90° (2008)
Record low34° (1964)
Sun, 1572° / 49°0.06
72 °
Mount Washington, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high72°
Average low49°
Average precipitation0.06 in
Chance of precipitation8%
Record high89° (2008)
Record low34° (1964)
Mon, 1670° / 49°0.04
70 °
Mount Washington, Monday, 16 November
Climate normal for this date — 60-year average.
Average high70°
Average low49°
Average precipitation0.04 in
Chance of precipitation10%
Record high89° (2008)
Record low33° (1964)
Tue, 1770° / 49°0.04
70 °
Mount Washington, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high70°
Average low49°
Average precipitation0.04 in
Chance of precipitation13%
Record high89° (2008)
Record low38° (1994)
Wed, 1870° / 48°0.04
70 °
Mount Washington, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high70°
Average low48°
Average precipitation0.04 in
Chance of precipitation10%
Record high89° (2019)
Record low34° (1964)
Thu, 1971° / 48°0.06
71 °
Mount Washington, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high71°
Average low48°
Average precipitation0.06 in
Chance of precipitation8%
Record high88° (2006)
Record low31° (1964)
Fri, 2070° / 48°0.07
70 °
Mount Washington, Friday, 20 November
Climate normal for this date — 60-year average.
Average high70°
Average low48°
Average precipitation0.07 in
Chance of precipitation12%
Record high86° (2006)
Record low34° (1964)
Sat, 2169° / 48°0.09
69 °
Mount Washington, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high69°
Average low48°
Average precipitation0.09 in
Chance of precipitation18%
Record high87° (2017)
Record low35° (1964)
Sun, 2269° / 47°0.06
69 °
Mount Washington, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high69°
Average low47°
Average precipitation0.06 in
Chance of precipitation12%
Record high90° (2017)
Record low35° (1983)
Mon, 2370° / 46°0.01
70 °
Mount Washington, Monday, 23 November
Climate normal for this date — 60-year average.
Average high70°
Average low46°
Average precipitation0.01 in
Chance of precipitation5%
Record high91° (2017)
Record low37° (2003)
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 Washington, 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 Washington, 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.