As of 13:38 PDT

Weather in Rosemont, CA

84°Current weather

Rosemont, Sunday, 18 October, 13:38

Clear. Feels like 82°. High 84°, low 54°.

Pressure29.94 inHg
Wind8.1 mph S
Humidity28%
Visibility6.2 mi
Dew point49°

Monthly outlook for Rosemont, CA: average high 71.3°, average low 51.3°. That is 0.8° below the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 1.1 inches. The warmest day looks like 18 October (84.2°), the coolest 20 October (47.1°).

71.3°/51.3°
Average high / low
−0.8°
Below normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October73.2°74.4°-0.7°
28 October – 6 November68.1°69.3°-0.6°
7 November – 16 Novemberat normal64.4°—

October records over 66 years

103.6°2 October 2024All-time high
37.9°31 October 2019All-time low
Mon, 1972° / 49°0Partly cloudy
72 °Partly cloudy

Rosemont, Monday, 19 October

Partly cloudy. High 72°, low 49°.

Pressure29.94 inHg
Wind6.5 mph S
Humidity45%
Visibility6.2 mi
Dew point44°
Tue, 2070° / 47°0.02Light rain
70 °Light rain

Rosemont, Tuesday, 20 October

Light rain. High 70°, low 47°.

Pressure29.94 inHg
Wind1 mph SW
Humidity45%
Visibility6.2 mi
Dew point42°
Wed, 2168° / 58°0.01Light rain
68 °Light rain

Rosemont, Wednesday, 21 October

Light rain. High 68°, low 58°.

Pressure29.88 inHg
Wind5 mph SE
Humidity56%
Visibility6.2 mi
Dew point50°
Thu, 2269° / 55°0.02Light rain
69 °Light rain

Rosemont, Thursday, 22 October

Light rain. High 69°, low 55°.

Pressure29.97 inHg
Wind2.9 mph SE
Humidity74%
Visibility6.2 mi
Dew point54°
Fri, 2373° / 53°0Clear
73 °Clear

Rosemont, Friday, 23 October

Clear. High 73°, low 53°.

Pressure30.15 inHg
Wind9.1 mph NW
Humidity56%
Visibility—
Dew point47°
Sat, 2475° / 51°0Clear
75 °Clear

Rosemont, Saturday, 24 October

Clear. High 75°, low 51°.

Pressure30.09 inHg
Wind4.1 mph NW
Humidity38%
Visibility—
Dew point38°
Sun, 2577° / 57°0Clear
77 °Clear

Rosemont, Sunday, 25 October

Clear. High 77°, low 57°.

Pressure30.03 inHg
Wind4.4 mph NW
Humidity22%
Visibility—
Dew point27°
Mon, 2678° / 57°0Overcast
78 °Overcast

Rosemont, Monday, 26 October

Overcast. High 78°, low 57°.

Pressure29.88 inHg
Wind10.7 mph SW
Humidity28%
Visibility—
Dew point34°
Tue, 2765° / 49°0Clear
65 °Clear

Rosemont, Tuesday, 27 October

Clear. High 65°, low 49°.

Pressure30.03 inHg
Wind11.5 mph S
Humidity47%
Visibility—
Dew point37°
Wed, 2868° / 48°0Clear
68 °Clear

Rosemont, Wednesday, 28 October

Clear. High 68°, low 48°.

Pressure30.03 inHg
Wind7.6 mph NW
Humidity33%
Visibility—
Dew point28°
Thu, 2966° / 47°0Mostly clear
66 °Mostly clear

Rosemont, Thursday, 29 October

Mostly clear. High 66°, low 47°.

Pressure29.91 inHg
Wind4.5 mph SE
Humidity33%
Visibility—
Dew point29°
Fri, 3064° / 49°0Overcast
64 °Overcast

Rosemont, Friday, 30 October

Overcast. High 64°, low 49°.

Pressure29.88 inHg
Wind4.7 mph W
Humidity50%
Visibility—
Dew point38°
Sat, 3168° / 49°0Clear
68 °Clear

Rosemont, Saturday, 31 October

Clear. High 68°, low 49°.

Pressure30.00 inHg
Wind8.7 mph SW
Humidity42%
Visibility—
Dew point35°
Sun, 0170° / 49°0Clear
70 °Clear

Rosemont, Sunday, 1 November

Clear. High 70°, low 49°.

Pressure30.12 inHg
Wind5.5 mph NW
Humidity48%
Visibility—
Dew point40°
Mon, 0272° / 50°0Clear
72 °Clear

Rosemont, Monday, 2 November

Clear. High 72°, low 50°.

Pressure30.18 inHg
Wind3.9 mph SE
Humidity22%
Visibility—
Dew point23°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0369° / 48°0.07Climate normal
69 °Climate normal

Rosemont, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high69°
Average low48°
Average precipitation0.07 in
Chance of precipitation18%
Record high85° (2018)
Record low38° (2019)
Wed, 0469° / 48°0.05Climate normal
69 °Climate normal

Rosemont, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high69°
Average low48°
Average precipitation0.05 in
Chance of precipitation13%
Record high81° (1976)
Record low38° (1973)
Thu, 0568° / 48°0.08Climate normal
68 °Climate normal

Rosemont, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high68°
Average low48°
Average precipitation0.08 in
Chance of precipitation13%
Record high81° (1976)
Record low38° (2011)
Fri, 0667° / 49°0.08Climate normal
67 °Climate normal

Rosemont, Friday, 6 November

Climate normal for this date — 60-year average.

Average high67°
Average low49°
Average precipitation0.08 in
Chance of precipitation17%
Record high79° (1976)
Record low41° (1996)
Sat, 0767° / 48°0.08Climate normal
67 °Climate normal

Rosemont, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high67°
Average low48°
Average precipitation0.08 in
Chance of precipitation28%
Record high78° (1991)
Record low39° (2011)
Sun, 0866° / 47°0.1Climate normal
66 °Climate normal

Rosemont, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high66°
Average low47°
Average precipitation0.1 in
Chance of precipitation23%
Record high78° (1990)
Record low39° (2011)
Mon, 0965° / 46°0.1Climate normal
65 °Climate normal

Rosemont, Monday, 9 November

Climate normal for this date — 60-year average.

Average high65°
Average low46°
Average precipitation0.1 in
Chance of precipitation25%
Record high77° (1976)
Record low35° (2020)
Tue, 1064° / 46°0.11Climate normal
64 °Climate normal

Rosemont, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.11 in
Chance of precipitation33%
Record high78° (1990)
Record low34° (2020)
Wed, 1164° / 46°0.13Climate normal
64 °Climate normal

Rosemont, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.13 in
Chance of precipitation27%
Record high78° (1990)
Record low35° (1982)
Thu, 1264° / 45°0.1Climate normal
64 °Climate normal

Rosemont, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high64°
Average low45°
Average precipitation0.1 in
Chance of precipitation22%
Record high77° (1990)
Record low33° (1985)
Fri, 1364° / 46°0.14Climate normal
64 °Climate normal

Rosemont, Friday, 13 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.14 in
Chance of precipitation30%
Record high79° (2013)
Record low32° (1985)
Sat, 1464° / 46°0.09Climate normal
64 °Climate normal

Rosemont, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.09 in
Chance of precipitation22%
Record high78° (2008)
Record low31° (1985)
Sun, 1564° / 45°0.07Climate normal
64 °Climate normal

Rosemont, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high64°
Average low45°
Average precipitation0.07 in
Chance of precipitation23%
Record high76° (2010)
Record low33° (1978)
Mon, 1663° / 46°0.13Climate normal
63 °Climate normal

Rosemont, Monday, 16 November

Climate normal for this date — 60-year average.

Average high63°
Average low46°
Average precipitation0.13 in
Chance of precipitation30%
Record high75° (1977)
Record low34° (2000)

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.