As of 12:03 PDT

Weather in Atherton, CA

64°

Atherton, Friday, 23 October, 12:03

Overcast. Feels like 64°. High 65°, low 56°.

Pressure30.06 inHg

Wind11.5 mph NW

Humidity76%

Visibility6.2 mi

Dew point57°

See detailed hourly forecast

Monthly outlook for Atherton, CA: average high 64.2°, average low 53.3°. That is 2.4° below the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 24 October (68.8°), the coolest 27 October (50.2°).

64.2°/53.3°

Average high / low

−2.4°

Below normal

3 / 2

Wet days / normal

0.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
23 October – 1 November	64.6°	69.2°	-2.5°
2 November – 11 November	63.5°	66.1°	-1.5°
12 November – 21 November	at normal	62.7°	—

October records over 66 years

101.8°2 October 2024All-time high

42.3°29 October 1971All-time low

Climate normals and records are computed from the nearest reference point — West Menlo Park (1 mi).

Sat, 2469° / 51°

69 °

Atherton, Saturday, 24 October

Clear. High 69°, low 51°.

Pressure30.03 inHg

Wind2.1 mph NW

Humidity44%

Visibility6.2 mi

Dew point41°

Sun, 2568° / 52°

68 °

Atherton, Sunday, 25 October

Overcast. High 68°, low 52°.

Pressure30.06 inHg

Wind2.7 mph N

Humidity61%

Visibility6.2 mi

Dew point52°

Mon, 2663° / 51°

63 °

Atherton, Monday, 26 October

Overcast. High 63°, low 51°.

Pressure30.15 inHg

Wind4.1 mph NW

Humidity67%

Visibility6.2 mi

Dew point51°

Tue, 2763° / 50°

63 °

Atherton, Tuesday, 27 October

Overcast. High 63°, low 50°.

Pressure30.06 inHg

Wind1.8 mph N

Humidity77%

Visibility5.4 mi

Dew point51°

Wed, 2862° / 50°

62 °

Atherton, Wednesday, 28 October

Overcast. High 62°, low 50°.

Pressure29.97 inHg

Wind5.5 mph NW

Humidity77%

Visibility—

Dew point51°

Thu, 2958° / 53°

0.01

58 °

Atherton, Thursday, 29 October

Light rain. High 58°, low 53°.

Pressure30.00 inHg

Wind2.5 mph S

Humidity76%

Visibility—

Dew point50°

Fri, 3064° / 54°

64 °

Atherton, Friday, 30 October

Overcast. High 64°, low 54°.

Pressure29.97 inHg

Wind4.3 mph NW

Humidity59%

Visibility—

Dew point47°

Sat, 3166° / 54°

0.12

66 °

Atherton, Saturday, 31 October

Light rain. High 66°, low 54°.

Pressure29.80 inHg

Wind4.2 mph NW

Humidity52%

Visibility—

Dew point44°

Sun, 0167° / 56°

0.46

67 °

Atherton, Sunday, 1 November

Rain. High 67°, low 56°.

Pressure29.59 inHg

Wind8.8 mph SW

Humidity85%

Visibility—

Dew point55°

Mon, 0262° / 56°

0.05

62 °

Atherton, Monday, 2 November

Light rain. High 62°, low 56°.

Pressure29.91 inHg

Wind5.5 mph SW

Humidity81%

Visibility—

Dew point53°

Tue, 0362° / 54°

0.01

62 °

Atherton, Tuesday, 3 November

Light rain. High 62°, low 54°.

Pressure30.09 inHg

Wind9.8 mph W

Humidity70%

Visibility—

Dew point49°

Wed, 0460° / 52°

60 °

Atherton, Wednesday, 4 November

Overcast. High 60°, low 52°.

Pressure30.09 inHg

Wind13 mph NW

Humidity62%

Visibility—

Dew point45°

Thu, 0564° / 53°

64 °

Atherton, Thursday, 5 November

Overcast. High 64°, low 53°.

Pressure30.21 inHg

Wind5.8 mph W

Humidity62%

Visibility—

Dew point48°

Fri, 0665° / 54°

65 °

Atherton, Friday, 6 November

Overcast. High 65°, low 54°.

Pressure30.24 inHg

Wind4.7 mph NW

Humidity60%

Visibility—

Dew point47°

Sat, 0768° / 55°

68 °

Atherton, Saturday, 7 November

Overcast. High 68°, low 55°.

Pressure30.06 inHg

Wind5 mph W

Humidity54%

Visibility—

Dew point46°

From day 17 onward the outlook is built from 60-year climate statistics

Sun, 0864° / 52°

0.08

64 °

Atherton, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high64°

Average low52°

Average precipitation0.08 in

Chance of precipitation25%

Record high79° (1978)

Record low42° (1982)

Mon, 0964° / 51°

0.06

64 °

Atherton, Monday, 9 November

Climate normal for this date — 60-year average.

Average high64°

Average low51°

Average precipitation0.06 in

Chance of precipitation23%

Record high77° (1990)

Record low40° (2020)

Tue, 1064° / 51°

0.11

64 °

Atherton, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high64°

Average low51°

Average precipitation0.11 in

Chance of precipitation30%

Record high80° (1990)

Record low40° (1994)

Wed, 1164° / 51°

0.09

64 °

Atherton, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high64°

Average low51°

Average precipitation0.09 in

Chance of precipitation27%

Record high82° (1990)

Record low41° (1985)

Thu, 1264° / 51°

0.07

64 °

Atherton, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high64°

Average low51°

Average precipitation0.07 in

Chance of precipitation17%

Record high78° (1990)

Record low39° (1985)

Fri, 1364° / 51°

0.13

64 °

Atherton, Friday, 13 November

Climate normal for this date — 60-year average.

Average high64°

Average low51°

Average precipitation0.13 in

Chance of precipitation27%

Record high77° (1995)

Record low41° (1985)

Sat, 1464° / 51°

0.06

64 °

Atherton, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high64°

Average low51°

Average precipitation0.06 in

Chance of precipitation23%

Record high76° (2008)

Record low40° (2022)

Sun, 1564° / 51°

0.07

64 °

Atherton, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high64°

Average low51°

Average precipitation0.07 in

Chance of precipitation17%

Record high79° (2008)

Record low40° (1964)

Mon, 1663° / 51°

0.11

63 °

Atherton, Monday, 16 November

Climate normal for this date — 60-year average.

Average high63°

Average low51°

Average precipitation0.11 in

Chance of precipitation25%

Record high79° (2008)

Record low42° (1964)

Tue, 1763° / 51°

0.12

63 °

Atherton, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high63°

Average low51°

Average precipitation0.12 in

Chance of precipitation28%

Record high79° (2008)

Record low38° (1964)

Wed, 1862° / 50°

0.06

62 °

Atherton, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high62°

Average low50°

Average precipitation0.06 in

Chance of precipitation22%

Record high78° (2005)

Record low38° (1964)

Thu, 1962° / 49°

0.04

62 °

Atherton, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high62°

Average low49°

Average precipitation0.04 in

Chance of precipitation25%

Record high76° (1989)

Record low39° (1994)

Fri, 2062° / 49°

0.1

62 °

Atherton, Friday, 20 November

Climate normal for this date — 60-year average.

Average high62°

Average low49°

Average precipitation0.1 in

Chance of precipitation23%

Record high75° (1989)

Record low40° (1979)

Sat, 2160° / 49°

0.08

60 °

Atherton, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high60°

Average low49°

Average precipitation0.08 in

Chance of precipitation25%

Record high73° (2005)

Record low40° (1964)

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 Atherton, 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 Atherton, 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.