As of 15:15 PDT

Weather in Nicasio, CA

94°

Nicasio, Thursday, 8 October, 15:15

Clear. Feels like 93°. High 94°, low 57°.

Pressure29.80 inHg

Wind8.1 mph N

Humidity28%

Visibility6.2 mi

Dew point58°

See detailed hourly forecast

Monthly outlook for Nicasio, CA: average high 73.9°, average low 52.9°. That is 3.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 8 October (94.2°), the coolest 11 October (48.7°).

73.9°/52.9°

Average high / low

+3.8°

Above normal

1 / 2

Wet days / normal

0.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	73°	67.7°	+3°
18 October – 27 October	75.5°	65.8°	+5.4°
28 October – 6 November	at normal	63.8°	—

October records over 66 years

96.4°1 October 2024All-time high

43.2°29 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Bolinas (10 mi).

Fri, 0981° / 54°

81 °

Nicasio, Friday, 9 October

Clear. High 81°, low 54°.

Pressure29.77 inHg

Wind7 mph SW

Humidity49%

Visibility6.2 mi

Dew point55°

Sat, 1065° / 50°

65 °

Nicasio, Saturday, 10 October

Clear. High 65°, low 50°.

Pressure29.62 inHg

Wind12.4 mph W

Humidity63%

Visibility6.2 mi

Dew point50°

Sun, 1169° / 49°

0.06

69 °

Nicasio, Sunday, 11 October

Light rain. High 69°, low 49°.

Pressure29.59 inHg

Wind2.3 mph NW

Humidity42%

Visibility6.2 mi

Dew point42°

Mon, 1268° / 49°

68 °

Nicasio, Monday, 12 October

Clear. High 68°, low 49°.

Pressure29.83 inHg

Wind8 mph E

Humidity54%

Visibility6.2 mi

Dew point46°

Tue, 1368° / 52°

68 °

Nicasio, Tuesday, 13 October

Clear. High 68°, low 52°.

Pressure30.06 inHg

Wind9.2 mph W

Humidity57%

Visibility—

Dew point48°

Wed, 1470° / 52°

70 °

Nicasio, Wednesday, 14 October

Partly cloudy. High 70°, low 52°.

Pressure30.12 inHg

Wind7.1 mph W

Humidity49%

Visibility—

Dew point46°

Thu, 1574° / 51°

74 °

Nicasio, Thursday, 15 October

Clear. High 74°, low 51°.

Pressure29.97 inHg

Wind21.3 mph NE

Humidity23%

Visibility—

Dew point28°

Fri, 1673° / 54°

73 °

Nicasio, Friday, 16 October

Clear. High 73°, low 54°.

Pressure29.83 inHg

Wind18.9 mph N

Humidity21%

Visibility—

Dew point26°

Sat, 1766° / 52°

66 °

Nicasio, Saturday, 17 October

Mostly clear. High 66°, low 52°.

Pressure30.00 inHg

Wind10 mph S

Humidity57%

Visibility—

Dew point47°

Sun, 1872° / 51°

72 °

Nicasio, Sunday, 18 October

Clear. High 72°, low 51°.

Pressure30.12 inHg

Wind5.7 mph W

Humidity40%

Visibility—

Dew point40°

Mon, 1977° / 53°

77 °

Nicasio, Monday, 19 October

Clear. High 77°, low 53°.

Pressure30.09 inHg

Wind5.6 mph W

Humidity29%

Visibility—

Dew point36°

Tue, 2079° / 57°

79 °

Nicasio, Tuesday, 20 October

Overcast. High 79°, low 57°.

Pressure30.03 inHg

Wind4.4 mph E

Humidity27%

Visibility—

Dew point35°

Wed, 2176° / 58°

76 °

Nicasio, Wednesday, 21 October

Overcast. High 76°, low 58°.

Pressure30.00 inHg

Wind4 mph S

Humidity26%

Visibility—

Dew point35°

Thu, 2276° / 55°

76 °

Nicasio, Thursday, 22 October

Overcast. High 76°, low 55°.

Pressure30.00 inHg

Wind7 mph W

Humidity34%

Visibility—

Dew point40°

Fri, 2372° / 53°

72 °

Nicasio, Friday, 23 October

Clear. High 72°, low 53°.

Pressure30.00 inHg

Wind6.6 mph SW

Humidity42%

Visibility—

Dew point45°

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

Sat, 2466° / 53°

0.15

66 °

Nicasio, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high66°

Average low53°

Average precipitation0.15 in

Chance of precipitation13%

Record high86° (2017)

Record low46° (1971)

Sun, 2566° / 53°

0.09

66 °

Nicasio, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high66°

Average low53°

Average precipitation0.09 in

Chance of precipitation17%

Record high85° (2003)

Record low46° (1971)

Mon, 2665° / 53°

0.06

65 °

Nicasio, Monday, 26 October

Climate normal for this date — 60-year average.

Average high65°

Average low53°

Average precipitation0.06 in

Chance of precipitation13%

Record high85° (2003)

Record low46° (2023)

Tue, 2765° / 52°

0.04

65 °

Nicasio, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high65°

Average low52°

Average precipitation0.04 in

Chance of precipitation8%

Record high81° (2003)

Record low45° (2004)

Wed, 2864° / 52°

0.07

64 °

Nicasio, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high64°

Average low52°

Average precipitation0.07 in

Chance of precipitation17%

Record high79° (2003)

Record low44° (2023)

Thu, 2964° / 51°

0.06

64 °

Nicasio, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high64°

Average low51°

Average precipitation0.06 in

Chance of precipitation22%

Record high75° (2025)

Record low43° (1971)

Fri, 3064° / 51°

0.06

64 °

Nicasio, Friday, 30 October

Climate normal for this date — 60-year average.

Average high64°

Average low51°

Average precipitation0.06 in

Chance of precipitation17%

Record high78° (1966)

Record low45° (1971)

Sat, 3164° / 51°

0.04

64 °

Nicasio, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high64°

Average low51°

Average precipitation0.04 in

Chance of precipitation18%

Record high79° (1966)

Record low44° (1991)

Sun, 0165° / 51°

0.06

65 °

Nicasio, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high65°

Average low51°

Average precipitation0.06 in

Chance of precipitation15%

Record high78° (2020)

Record low41° (2003)

Mon, 0265° / 51°

0.04

65 °

Nicasio, Monday, 2 November

Climate normal for this date — 60-year average.

Average high65°

Average low51°

Average precipitation0.04 in

Chance of precipitation17%

Record high79° (1997)

Record low44° (2022)

Tue, 0364° / 51°

0.04

64 °

Nicasio, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high64°

Average low51°

Average precipitation0.04 in

Chance of precipitation13%

Record high78° (1976)

Record low42° (2022)

Wed, 0464° / 51°

0.03

64 °

Nicasio, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high64°

Average low51°

Average precipitation0.03 in

Chance of precipitation12%

Record high79° (1976)

Record low44° (2003)

Thu, 0562° / 51°

0.08

62 °

Nicasio, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high62°

Average low51°

Average precipitation0.08 in

Chance of precipitation15%

Record high77° (2020)

Record low46° (1996)

Fri, 0662° / 51°

0.07

62 °

Nicasio, Friday, 6 November

Climate normal for this date — 60-year average.

Average high62°

Average low51°

Average precipitation0.07 in

Chance of precipitation20%

Record high75° (1978)

Record low45° (1996)

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 Nicasio, 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 Nicasio, 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.