As of 06:18 PDT

Weather in Fairfax, CA

59°

Fairfax, Wednesday, 21 October, 06:18

Overcast. Feels like 58°. High 70°, low 58°.

Pressure29.83 inHg

Wind2 mph SE

Humidity79%

Visibility6.2 mi

Dew point53°

See detailed hourly forecast

Monthly outlook for Fairfax, CA: average high 65.3°, average low 51.1°. That is 0.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 2 days and 1.0 inches. The warmest day looks like 24 October (73°), the coolest 25 October (45.7°).

65.3°/51.1°

Average high / low

+0.3°

Above normal

1 / 2

Wet days / normal

0.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
21 October – 30 October	66.8°	65.1°	+1°
31 October – 9 November	62.8°	63.1°	-0.2°
10 November – 19 November	at normal	60.3°	—

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 (8 mi).

Thu, 2268° / 55°

0.36

68 °

Fairfax, Thursday, 22 October

Rain. High 68°, low 55°.

Pressure29.91 inHg

Wind1.7 mph SW

Humidity79%

Visibility6.2 mi

Dew point56°

Fri, 2369° / 48°

69 °

Fairfax, Friday, 23 October

Overcast. High 69°, low 48°.

Pressure30.06 inHg

Wind5.6 mph NE

Humidity81%

Visibility6.2 mi

Dew point54°

Sat, 2473° / 49°

73 °

Fairfax, Saturday, 24 October

Clear. High 73°, low 49°.

Pressure30.03 inHg

Wind1.3 mph NE

Humidity29%

Visibility6.2 mi

Dew point38°

Sun, 2570° / 46°

70 °

Fairfax, Sunday, 25 October

Mostly clear. High 70°, low 46°.

Pressure30.09 inHg

Wind3 mph E

Humidity49%

Visibility—

Dew point42°

Mon, 2666° / 48°

66 °

Fairfax, Monday, 26 October

Overcast. High 66°, low 48°.

Pressure30.12 inHg

Wind8.1 mph W

Humidity71%

Visibility—

Dew point49°

Tue, 2765° / 53°

65 °

Fairfax, Tuesday, 27 October

Overcast. High 65°, low 53°.

Pressure30.06 inHg

Wind6 mph W

Humidity39%

Visibility—

Dew point36°

Wed, 2863° / 52°

63 °

Fairfax, Wednesday, 28 October

Overcast. High 63°, low 52°.

Pressure29.94 inHg

Wind6.6 mph NW

Humidity65%

Visibility—

Dew point48°

Thu, 2961° / 49°

61 °

Fairfax, Thursday, 29 October

Partly cloudy. High 61°, low 49°.

Pressure29.97 inHg

Wind5.9 mph W

Humidity66%

Visibility—

Dew point46°

Fri, 3063° / 50°

63 °

Fairfax, Friday, 30 October

Mostly clear. High 63°, low 50°.

Pressure29.94 inHg

Wind7.8 mph W

Humidity50%

Visibility—

Dew point40°

Sat, 3159° / 48°

59 °

Fairfax, Saturday, 31 October

Overcast. High 59°, low 48°.

Pressure29.94 inHg

Wind6.3 mph W

Humidity67%

Visibility—

Dew point43°

Sun, 0162° / 49°

62 °

Fairfax, Sunday, 1 November

Mostly clear. High 62°, low 49°.

Pressure30.06 inHg

Wind4.7 mph W

Humidity64%

Visibility—

Dew point44°

Mon, 0266° / 55°

66 °

Fairfax, Monday, 2 November

Overcast. High 66°, low 55°.

Pressure30.12 inHg

Wind5.9 mph NW

Humidity40%

Visibility—

Dew point39°

Tue, 0364° / 55°

64 °

Fairfax, Tuesday, 3 November

Overcast. High 64°, low 55°.

Pressure30.09 inHg

Wind6.7 mph W

Humidity55%

Visibility—

Dew point45°

Wed, 0464° / 55°

64 °

Fairfax, Wednesday, 4 November

Overcast. High 64°, low 55°.

Pressure30.03 inHg

Wind9.1 mph W

Humidity72%

Visibility—

Dew point53°

Thu, 0561° / 50°

61 °

Fairfax, Thursday, 5 November

Partly cloudy. High 61°, low 50°.

Pressure30.06 inHg

Wind14.1 mph NW

Humidity54%

Visibility—

Dew point42°

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

Fri, 0662° / 51°

0.07

62 °

Fairfax, 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)

Sat, 0762° / 51°

0.1

62 °

Fairfax, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high62°

Average low51°

Average precipitation0.1 in

Chance of precipitation25%

Record high77° (1991)

Record low43° (2022)

Sun, 0862° / 50°

0.09

62 °

Fairfax, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high62°

Average low50°

Average precipitation0.09 in

Chance of precipitation27%

Record high72° (1976)

Record low44° (2011)

Mon, 0961° / 49°

0.11

61 °

Fairfax, Monday, 9 November

Climate normal for this date — 60-year average.

Average high61°

Average low49°

Average precipitation0.11 in

Chance of precipitation23%

Record high73° (2025)

Record low43° (1998)

Tue, 1061° / 50°

0.16

61 °

Fairfax, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high61°

Average low50°

Average precipitation0.16 in

Chance of precipitation32%

Record high74° (2025)

Record low42° (1994)

Wed, 1161° / 50°

0.11

61 °

Fairfax, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high61°

Average low50°

Average precipitation0.11 in

Chance of precipitation27%

Record high75° (1990)

Record low39° (2000)

Thu, 1261° / 49°

0.08

61 °

Fairfax, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high61°

Average low49°

Average precipitation0.08 in

Chance of precipitation17%

Record high72° (1990)

Record low37° (1985)

Fri, 1361° / 50°

0.17

61 °

Fairfax, Friday, 13 November

Climate normal for this date — 60-year average.

Average high61°

Average low50°

Average precipitation0.17 in

Chance of precipitation30%

Record high70° (1974)

Record low38° (1985)

Sat, 1461° / 49°

0.05

61 °

Fairfax, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high61°

Average low49°

Average precipitation0.05 in

Chance of precipitation27%

Record high77° (2008)

Record low38° (1985)

Sun, 1561° / 50°

0.11

61 °

Fairfax, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high61°

Average low50°

Average precipitation0.11 in

Chance of precipitation25%

Record high75° (2008)

Record low38° (2000)

Mon, 1660° / 50°

0.16

60 °

Fairfax, Monday, 16 November

Climate normal for this date — 60-year average.

Average high60°

Average low50°

Average precipitation0.16 in

Chance of precipitation30%

Record high72° (2008)

Record low41° (2000)

Tue, 1760° / 49°

0.16

60 °

Fairfax, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high60°

Average low49°

Average precipitation0.16 in

Chance of precipitation25%

Record high72° (2008)

Record low41° (1964)

Wed, 1860° / 49°

0.08

60 °

Fairfax, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high60°

Average low49°

Average precipitation0.08 in

Chance of precipitation20%

Record high72° (2005)

Record low40° (1994)

Thu, 1959° / 48°

0.1

59 °

Fairfax, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high59°

Average low48°

Average precipitation0.1 in

Chance of precipitation30%

Record high71° (1989)

Record low39° (2024)

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 Fairfax, 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 Fairfax, 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.