As of 12:04 PDT

Weather in Atherton, CA

70°Current weather

Atherton, Sunday, 18 October, 12:04

Clear. Feels like 70°. High 72°, low 50°.

Pressure30.00 inHg
Wind10.4 mph N
Humidity68%
Visibility6.2 mi
Dew point59°

Monthly outlook for Atherton, CA: average high 66°, average low 52.7°. That is 2.2° below the climate normal for October. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 25 October (73.1°), the coolest 19 October (45.1°).

66°/52.7°
Average high / low
−2.2°
Below normal
5 / 2
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October66.5°70.9°-2.4°
28 October – 6 November65.1°67.9°-1.6°
7 November – 16 Novemberat normal64.1°—

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).

Mon, 1968° / 45°0Partly cloudy
68 °Partly cloudy

Atherton, Monday, 19 October

Partly cloudy. High 68°, low 45°.

Pressure29.97 inHg
Wind6.7 mph W
Humidity54%
Visibility6.2 mi
Dew point45°
Tue, 2061° / 51°0.05Rain
61 °Rain

Atherton, Tuesday, 20 October

Rain. High 61°, low 51°.

Pressure29.94 inHg
Wind2.8 mph NE
Humidity59%
Visibility6.2 mi
Dew point46°
Wed, 2161° / 54°0.8Rain
61 °Rain

Atherton, Wednesday, 21 October

Rain. High 61°, low 54°.

Pressure29.88 inHg
Wind0.6 mph NE
Humidity77%
Visibility6.2 mi
Dew point56°
Thu, 2262° / 52°0.19Light rain
62 °Light rain

Atherton, Thursday, 22 October

Light rain. High 62°, low 52°.

Pressure30.00 inHg
Wind4.8 mph W
Humidity83%
Visibility6.2 mi
Dew point55°
Fri, 2363° / 49°0Overcast
63 °Overcast

Atherton, Friday, 23 October

Overcast. High 63°, low 49°.

Pressure30.18 inHg
Wind8.5 mph NW
Humidity85%
Visibility—
Dew point51°
Sat, 2471° / 56°0Clear
71 °Clear

Atherton, Saturday, 24 October

Clear. High 71°, low 56°.

Pressure30.12 inHg
Wind4.1 mph N
Humidity53%
Visibility—
Dew point48°
Sun, 2573° / 60°0Mostly clear
73 °Mostly clear

Atherton, Sunday, 25 October

Mostly clear. High 73°, low 60°.

Pressure30.00 inHg
Wind4.4 mph W
Humidity35%
Visibility—
Dew point40°
Mon, 2667° / 53°0Clear
67 °Clear

Atherton, Monday, 26 October

Clear. High 67°, low 53°.

Pressure29.83 inHg
Wind6.6 mph W
Humidity57%
Visibility—
Dew point49°
Tue, 2766° / 51°0Clear
66 °Clear

Atherton, Tuesday, 27 October

Clear. High 66°, low 51°.

Pressure29.94 inHg
Wind5.9 mph W
Humidity61%
Visibility—
Dew point47°
Wed, 2865° / 51°0Overcast
65 °Overcast

Atherton, Wednesday, 28 October

Overcast. High 65°, low 51°.

Pressure30.03 inHg
Wind5.3 mph NW
Humidity64%
Visibility—
Dew point47°
Thu, 2967° / 52°0Overcast
67 °Overcast

Atherton, Thursday, 29 October

Overcast. High 67°, low 52°.

Pressure30.06 inHg
Wind8.6 mph W
Humidity61%
Visibility—
Dew point47°
Fri, 3063° / 50°0Partly cloudy
63 °Partly cloudy

Atherton, Friday, 30 October

Partly cloudy. High 63°, low 50°.

Pressure30.06 inHg
Wind6.3 mph SW
Humidity56%
Visibility—
Dew point43°
Sat, 3166° / 51°0Overcast
66 °Overcast

Atherton, Saturday, 31 October

Overcast. High 66°, low 51°.

Pressure30.06 inHg
Wind4.7 mph NW
Humidity51%
Visibility—
Dew point42°
Sun, 0161° / 56°0.58Rain
61 °Rain

Atherton, Sunday, 1 November

Rain. High 61°, low 56°.

Pressure29.97 inHg
Wind14.6 mph SE
Humidity68%
Visibility—
Dew point48°
Mon, 0271° / 61°0.09Light rain
71 °Light rain

Atherton, Monday, 2 November

Light rain. High 71°, low 61°.

Pressure30.09 inHg
Wind8 mph SE
Humidity81%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0369° / 53°0.04Climate normal
69 °Climate normal

Atherton, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high69°
Average low53°
Average precipitation0.04 in
Chance of precipitation12%
Record high83° (1976)
Record low45° (2022)
Wed, 0468° / 53°0.03Climate normal
68 °Climate normal

Atherton, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high68°
Average low53°
Average precipitation0.03 in
Chance of precipitation15%
Record high86° (1976)
Record low42° (2011)
Thu, 0567° / 53°0.05Climate normal
67 °Climate normal

Atherton, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high67°
Average low53°
Average precipitation0.05 in
Chance of precipitation12%
Record high83° (1976)
Record low46° (1996)
Fri, 0667° / 53°0.05Climate normal
67 °Climate normal

Atherton, Friday, 6 November

Climate normal for this date — 60-year average.

Average high67°
Average low53°
Average precipitation0.05 in
Chance of precipitation20%
Record high82° (1976)
Record low46° (1996)
Sat, 0766° / 53°0.07Climate normal
66 °Climate normal

Atherton, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high66°
Average low53°
Average precipitation0.07 in
Chance of precipitation28%
Record high82° (1991)
Record low47° (2020)
Sun, 0864° / 52°0.08Climate normal
64 °Climate normal

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°0.06Climate normal
64 °Climate normal

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°0.11Climate normal
64 °Climate normal

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°0.09Climate normal
64 °Climate normal

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°0.07Climate normal
64 °Climate normal

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°0.13Climate normal
64 °Climate normal

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°0.06Climate normal
64 °Climate normal

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°0.07Climate normal
64 °Climate normal

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°0.11Climate normal
63 °Climate normal

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)

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.