As of 14:02 PDT

Weather in Montclair, CA

65°

Montclair, Sunday, 11 October, 14:02

Overcast. Feels like 65°. High 66°, low 60°.

Pressure29.74 inHg

Wind16.1 mph SW

Humidity81%

Visibility6.2 mi

Dew point59°

See detailed hourly forecast

Monthly outlook for Montclair, CA: average high 79.4°, average low 64.2°. That is 0.2° above the climate normal for October. Precipitation is expected on 2 days (about 1.7 inches), against a normal of 1 days and 0.4 inches. The warmest day looks like 17 October (88.9°), the coolest 13 October (48.4°).

79.4°/64.2°

Average high / low

+0.2°

Above normal

2 / 1

Wet days / normal

1.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
11 October – 20 October	77.4°	79.8°	-1.4°
21 October – 30 October	82.7°	76.8°	+3.3°
31 October – 9 November	at normal	74.1°	—

October records over 66 years

104.2°1 October 2020All-time high

34.2°29 October 1971All-time low

Mon, 1262° / 54°

0.69

62 °

Montclair, Monday, 12 October

Rain. High 62°, low 54°.

Pressure29.94 inHg

Wind2.3 mph W

Humidity81%

Visibility5.0 mi

Dew point52°

Tue, 1364° / 48°

64 °

Montclair, Tuesday, 13 October

Light rain. High 64°, low 48°.

Pressure30.03 inHg

Wind1.3 mph SW

Humidity61%

Visibility6.2 mi

Dew point47°

Wed, 1471° / 51°

71 °

Montclair, Wednesday, 14 October

Clear. High 71°, low 51°.

Pressure30.06 inHg

Wind2.1 mph SW

Humidity40%

Visibility6.2 mi

Dew point44°

Thu, 1580° / 54°

80 °

Montclair, Thursday, 15 October

Clear. High 80°, low 54°.

Pressure29.97 inHg

Wind3.1 mph S

Humidity42%

Visibility6.2 mi

Dew point51°

Fri, 1685° / 62°

85 °

Montclair, Friday, 16 October

Clear. High 85°, low 62°.

Pressure29.91 inHg

Wind5.9 mph NE

Humidity32%

Visibility—

Dew point45°

Sat, 1789° / 65°

89 °

Montclair, Saturday, 17 October

Clear. High 89°, low 65°.

Pressure30.00 inHg

Wind6.2 mph E

Humidity31%

Visibility—

Dew point46°

Sun, 1889° / 75°

89 °

Montclair, Sunday, 18 October

Clear. High 89°, low 75°.

Pressure30.00 inHg

Wind9.6 mph SW

Humidity20%

Visibility—

Dew point38°

Mon, 1987° / 75°

87 °

Montclair, Monday, 19 October

Clear. High 87°, low 75°.

Pressure30.00 inHg

Wind9.6 mph SW

Humidity23%

Visibility—

Dew point40°

Tue, 2081° / 70°

81 °

Montclair, Tuesday, 20 October

Clear. High 81°, low 70°.

Pressure29.91 inHg

Wind9.4 mph SW

Humidity34%

Visibility—

Dew point46°

Wed, 2181° / 68°

81 °

Montclair, Wednesday, 21 October

Clear. High 81°, low 68°.

Pressure29.88 inHg

Wind8.9 mph SW

Humidity41%

Visibility—

Dew point49°

Thu, 2282° / 68°

82 °

Montclair, Thursday, 22 October

Clear. High 82°, low 68°.

Pressure29.85 inHg

Wind5.9 mph SW

Humidity35%

Visibility—

Dew point46°

Fri, 2385° / 72°

85 °

Montclair, Friday, 23 October

Clear. High 85°, low 72°.

Pressure29.94 inHg

Wind15.3 mph NE

Humidity10%

Visibility—

Dew point19°

Sat, 2480° / 68°

80 °

Montclair, Saturday, 24 October

Clear. High 80°, low 68°.

Pressure30.09 inHg

Wind19.4 mph NE

Humidity13%

Visibility—

Dew point20°

Sun, 2583° / 69°

83 °

Montclair, Sunday, 25 October

Clear. High 83°, low 69°.

Pressure30.06 inHg

Wind11.5 mph N

Humidity6%

Visibility—

Dew point6°

Mon, 2686° / 70°

86 °

Montclair, Monday, 26 October

Clear. High 86°, low 70°.

Pressure30.03 inHg

Wind6.5 mph NW

Humidity9%

Visibility—

Dew point16°

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

Tue, 2776° / 55°

0.06

76 °

Montclair, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high76°

Average low55°

Average precipitation0.06 in

Chance of precipitation10%

Record high92° (2008)

Record low44° (1996)

Wed, 2876° / 53°

0.02

76 °

Montclair, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high76°

Average low53°

Average precipitation0.02 in

Chance of precipitation12%

Record high93° (2008)

Record low44° (1996)

Thu, 2975° / 53°

0.01

75 °

Montclair, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high75°

Average low53°

Average precipitation0.01 in

Chance of precipitation8%

Record high91° (1965)

Record low34° (1971)

Fri, 3074° / 53°

0.05

74 °

Montclair, Friday, 30 October

Climate normal for this date — 60-year average.

Average high74°

Average low53°

Average precipitation0.05 in

Chance of precipitation20%

Record high91° (1966)

Record low35° (1971)

Sat, 3175° / 53°

0.02

75 °

Montclair, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high75°

Average low53°

Average precipitation0.02 in

Chance of precipitation5%

Record high91° (1966)

Record low38° (1971)

Sun, 0176° / 53°

0.04

76 °

Montclair, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high76°

Average low53°

Average precipitation0.04 in

Chance of precipitation12%

Record high91° (1997)

Record low42° (1971)

Mon, 0275° / 53°

0.02

75 °

Montclair, Monday, 2 November

Climate normal for this date — 60-year average.

Average high75°

Average low53°

Average precipitation0.02 in

Chance of precipitation13%

Record high91° (1997)

Record low43° (1974)

Tue, 0376° / 52°

76 °

Montclair, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high76°

Average low52°

Average precipitation0 in

Chance of precipitation5%

Record high92° (2010)

Record low42° (1974)

Wed, 0476° / 52°

0.03

76 °

Montclair, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high76°

Average low52°

Average precipitation0.03 in

Chance of precipitation5%

Record high92° (2020)

Record low39° (1994)

Thu, 0574° / 52°

0.01

74 °

Montclair, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high74°

Average low52°

Average precipitation0.01 in

Chance of precipitation7%

Record high94° (2020)

Record low40° (2011)

Fri, 0673° / 52°

0.02

73 °

Montclair, Friday, 6 November

Climate normal for this date — 60-year average.

Average high73°

Average low52°

Average precipitation0.02 in

Chance of precipitation8%

Record high89° (2006)

Record low41° (2011)

Sat, 0772° / 51°

0.06

72 °

Montclair, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high72°

Average low51°

Average precipitation0.06 in

Chance of precipitation12%

Record high91° (2006)

Record low37° (2011)

Sun, 0872° / 51°

0.09

72 °

Montclair, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high72°

Average low51°

Average precipitation0.09 in

Chance of precipitation22%

Record high90° (2016)

Record low39° (2011)

Mon, 0972° / 51°

0.05

72 °

Montclair, Monday, 9 November

Climate normal for this date — 60-year average.

Average high72°

Average low51°

Average precipitation0.05 in

Chance of precipitation12%

Record high90° (2016)

Record low40° (1998)

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 Montclair, 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 Montclair, 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.