As of 01:17 PST

Weather in Rosemont, CA

51°

Rosemont, Monday, 9 November, 01:17

Fog. Feels like 50°. High 77°, low 49°.

Pressure30.06 inHg

Wind0 mph N

Humidity84%

Visibility5.0 mi

Dew point46°

See detailed hourly forecast

Monthly outlook for Rosemont, CA: average high 64.6°, average low 47.7°. That is 1.2° above the climate normal for November. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 10 November (78.6°), the coolest 20 November (41.6°).

64.6°/47.7°

Average high / low

+1.2°

Above normal

2 / 4

Wet days / normal

0.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 November – 18 November	68.2°	63.6°	+2.5°
19 November – 28 November	58.6°	59.5°	-0.5°
29 November – 8 December	at normal	57.3°	—

November records over 66 years

85.1°3 November 2018All-time high

29.1°29 November 2010All-time low

Tue, 1079° / 51°

79 °

Rosemont, Tuesday, 10 November

Clear. High 79°, low 51°.

Pressure30.15 inHg

Wind2.4 mph NW

Humidity47%

Visibility6.2 mi

Dew point49°

Wed, 1174° / 50°

74 °

Rosemont, Wednesday, 11 November

Clear. High 74°, low 50°.

Pressure30.06 inHg

Wind1.1 mph W

Humidity47%

Visibility6.2 mi

Dew point49°

Thu, 1274° / 52°

74 °

Rosemont, Thursday, 12 November

Overcast. High 74°, low 52°.

Pressure29.83 inHg

Wind0.6 mph E

Humidity35%

Visibility6.2 mi

Dew point42°

Fri, 1372° / 56°

0.25

72 °

Rosemont, Friday, 13 November

Rain. High 72°, low 56°.

Pressure29.74 inHg

Wind13.6 mph S

Humidity67%

Visibility—

Dew point53°

Sat, 1465° / 50°

65 °

Rosemont, Saturday, 14 November

Overcast. High 65°, low 50°.

Pressure29.91 inHg

Wind4.6 mph SE

Humidity78%

Visibility—

Dew point51°

Sun, 1558° / 51°

0.51

58 °

Rosemont, Sunday, 15 November

Rain. High 58°, low 51°.

Pressure29.94 inHg

Wind7.5 mph SW

Humidity87%

Visibility—

Dew point51°

Mon, 1661° / 47°

61 °

Rosemont, Monday, 16 November

Clear. High 61°, low 47°.

Pressure30.15 inHg

Wind11.1 mph NW

Humidity69%

Visibility—

Dew point44°

Tue, 1761° / 47°

61 °

Rosemont, Tuesday, 17 November

Overcast. High 61°, low 47°.

Pressure30.03 inHg

Wind9.2 mph NW

Humidity40%

Visibility—

Dew point30°

Wed, 1861° / 44°

61 °

Rosemont, Wednesday, 18 November

Clear. High 61°, low 44°.

Pressure30.12 inHg

Wind11.8 mph NW

Humidity37%

Visibility—

Dew point26°

Thu, 1957° / 43°

57 °

Rosemont, Thursday, 19 November

Overcast. High 57°, low 43°.

Pressure30.24 inHg

Wind5.3 mph N

Humidity34%

Visibility—

Dew point22°

Fri, 2058° / 42°

58 °

Rosemont, Friday, 20 November

Clear. High 58°, low 42°.

Pressure30.24 inHg

Wind10.4 mph NW

Humidity32%

Visibility—

Dew point21°

Sat, 2154° / 43°

54 °

Rosemont, Saturday, 21 November

Overcast. High 54°, low 43°.

Pressure30.30 inHg

Wind4.2 mph SE

Humidity30%

Visibility—

Dew point20°

Sun, 2256° / 47°

0.01

56 °

Rosemont, Sunday, 22 November

Light rain. High 56°, low 47°.

Pressure30.24 inHg

Wind7.8 mph NW

Humidity48%

Visibility—

Dew point32°

Mon, 2361° / 44°

61 °

Rosemont, Monday, 23 November

Partly cloudy. High 61°, low 44°.

Pressure30.30 inHg

Wind3.9 mph N

Humidity54%

Visibility—

Dew point37°

Tue, 2465° / 48°

65 °

Rosemont, Tuesday, 24 November

Clear. High 65°, low 48°.

Pressure30.21 inHg

Wind3 mph NW

Humidity40%

Visibility—

Dew point32°

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

Wed, 2559° / 42°

0.08

59 °

Rosemont, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high59°

Average low42°

Average precipitation0.08 in

Chance of precipitation20%

Record high74° (1995)

Record low31° (2010)

Thu, 2659° / 41°

0.09

59 °

Rosemont, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high59°

Average low41°

Average precipitation0.09 in

Chance of precipitation22%

Record high70° (2002)

Record low31° (2010)

Fri, 2758° / 42°

0.09

58 °

Rosemont, Friday, 27 November

Climate normal for this date — 60-year average.

Average high58°

Average low42°

Average precipitation0.09 in

Chance of precipitation27%

Record high72° (1986)

Record low31° (2023)

Sat, 2858° / 41°

0.13

58 °

Rosemont, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high58°

Average low41°

Average precipitation0.13 in

Chance of precipitation25%

Record high69° (1995)

Record low32° (2015)

Sun, 2957° / 41°

0.15

57 °

Rosemont, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high57°

Average low41°

Average precipitation0.15 in

Chance of precipitation27%

Record high71° (1977)

Record low29° (2010)

Mon, 3057° / 41°

0.15

57 °

Rosemont, Monday, 30 November

Climate normal for this date — 60-year average.

Average high57°

Average low41°

Average precipitation0.15 in

Chance of precipitation27%

Record high71° (1977)

Record low29° (2004)

Tue, 0158° / 42°

0.17

58 °

Rosemont, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high58°

Average low42°

Average precipitation0.17 in

Chance of precipitation30%

Record high67° (1977)

Record low33° (2020)

Wed, 0257° / 42°

0.18

57 °

Rosemont, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.18 in

Chance of precipitation27%

Record high69° (2011)

Record low30° (2004)

Thu, 0358° / 42°

0.19

58 °

Rosemont, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high58°

Average low42°

Average precipitation0.19 in

Chance of precipitation33%

Record high69° (1979)

Record low31° (2004)

Fri, 0457° / 41°

0.12

57 °

Rosemont, Friday, 4 December

Climate normal for this date — 60-year average.

Average high57°

Average low41°

Average precipitation0.12 in

Chance of precipitation28%

Record high66° (1979)

Record low31° (2004)

Sat, 0557° / 42°

0.11

57 °

Rosemont, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.11 in

Chance of precipitation25%

Record high67° (1989)

Record low28° (2013)

Sun, 0657° / 42°

0.09

57 °

Rosemont, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.09 in

Chance of precipitation30%

Record high66° (1995)

Record low27° (2013)

Mon, 0757° / 42°

0.16

57 °

Rosemont, Monday, 7 December

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.16 in

Chance of precipitation35%

Record high70° (2020)

Record low29° (1998)

Tue, 0856° / 40°

0.1

56 °

Rosemont, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high56°

Average low40°

Average precipitation0.1 in

Chance of precipitation23%

Record high67° (1979)

Record low26° (2009)

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 Rosemont, 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 Rosemont, 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.